How To Diagnose And Repair An Old Motorcycle PT1 - Honda CB750

Автокөліктер мен көлік құралдары

How to diagnose and repair an old motorcycle PT1. In this video we take a close look at a 1972 Honda CB750 for a customer who has had some running issues with it in the past. His reports say that the bike seemed to be losing ignition power and would feel like it was down on cylinders. With that information I go through and test the ignition components with a multimeter as well as make some basic adjustments to some of the components. I also remove the carburetor float bowls to get an idea of their condition to best build a quote up for all of the needed repairs.
The tests, component checks, and eventual repairs are all things you can use on your old bike to get it running or help keep it running at its full potential. I always highly recommend a service manual for your bike as well as a digital multimeter as those two tools greatly help you in any repair work you must do. Instead of guessing what's wrong and asking random people on the internet you can do the tests yourself and get a clear understanding of how to repair as needed.
The figures below apply to this specific motorcycle. Your motorcycle may have different specifications to be aiming for so be sure to do your research.
Test results on the coils:
Primary Resistance (coil harness leads to each other) - Goal 5k OHMS +/_ 10%
Coil 1-4 = 4.9k PASS
Coil 2-3 = 5.0K PASS
Secondary Resistance (spark plug wire leads to each other) - Goal 15K OHMS +/_ 10%
Coil 1-4 = 18.9K = FAIL too high
Coil 2-3 = OL Open Line FAIL
Spark Plug Resistor Cap Resistance - Goal 5K OHMS
1 = 8.4K FAIL
2 = 10.16K FAIL
3 = OL Open Line FAIL
4 = OL Open Line FAIL
Further notes - The plug wires were very deteriorated with poor connections. The points plate was out of time which you see me adjust. The points themselves needed to be filed. The carburetors had varnished fuel requiring a rebuild. The fuel tap was seeping and I chose to go for a rebuild there as well.
There will be much more in episode 2 so don't miss that!
Clymer/Haynes/Factory Service manuals are a must with any motorcycle you own. They are an incredibly valuable tool and only cost about $35 which you will end up saving 10 fold with time and saved money by not buying parts you don't need. The manual linked is a Clymer which is an Amazon affiliate link where I get a small commission if you make a purchase.
amzn.to/3IpjBnB
A digital multimeter will cost between $25-35 for a basic one like mine. I have had mine for about 15 years now and it is one of my most used tools in the shop. I have linked it below which is an Amazon affiliate link where I get a small commission if you make a purchase.
amzn.to/3prAipN
Part 2 where we do the repairs and fix the bike:
• How To Diagnose And Re...
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#brickhousebuilds #howto #cb750

Пікірлер: 333

  • @michaelmaletich5830
    @michaelmaletich5830 Жыл бұрын

    I purchased this exact same bike, orange 1972 CB750 K2 brand new in 1972 (just graduated from high school) for $1820 out the door. It was one of the best bikes I’ve ever owned. Open the throttle and it screamed. But just cruise around and it purred. Can’t ever remember having a problem with it. Wonderful bike.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    They really are such fantastic bikes. I have a blue 75 I've made a bunch of videos on as my daily rider and it just couldn't make me happier.

  • @tedjemison2699

    @tedjemison2699

    Жыл бұрын

    I had the exact bike in 72 when I was a junior in high school. No problems whatsoever !

  • @stephenschneider9209
    @stephenschneider9209 Жыл бұрын

    I'm an old school motorcycle dude started riding in the 70s. As much as I love my new bikes I really dislike and struggle with all the technology crammed up my ass. I don't want traction control, abs, riding modes that each have their own riding modes! Wtf? I just want to ride. I miss my old bikes with carbs and "manual" controls. I love your videos. To see the younger generation embrace the early machines and keep em going, in original condition gives hope for our planet.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Well thank you Stephen! Like you I love vintage machines and the soul they have. I do very much like modern bikes but my passion is in vintage.

  • @Martin_IPL5990
    @Martin_IPL59902 жыл бұрын

    I really enjoyed that, it's good to go through the basic stuff in the detail you did. looking forward to the next one.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Glad you liked it and agreed, usually simple stuff but without proper tests you end up throwing parts at the wrong thing

  • @jackfarr9629
    @jackfarr96292 жыл бұрын

    These old Hondas are lovely machines, very well presented, keep the content coming!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    I appreciate it Jack!

  • @kevinbrislawn5918
    @kevinbrislawn59182 жыл бұрын

    My younger brother sadly passed away in 2006 owned this same color CB 750 He really took extreme good care of it. I miss him a lot.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Im sorry to hear that Kevin

  • @kihestad
    @kihestad2 жыл бұрын

    Very informative, learned a lot! 👍 My first bike was a 74 CB550 super sport, this was like a walk down the memory lane 😊

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Happy it had some worthwhile info in it

  • @saucytoon3452

    @saucytoon3452

    Жыл бұрын

    Do you think a 750 is too heavy for a beginner?

  • @jeremycoleman2936

    @jeremycoleman2936

    7 ай бұрын

    No 750 is a good beginner and intermediate bike I've rode dirt bikes on and off just got my 750 1973 love it learning lots

  • @kevinharmon3371
    @kevinharmon3371 Жыл бұрын

    My 1st bike was a 1976 750. With my father-in-law and his 73 750 and his son on a 500 we took our first cross country from Topeka to Roesburg Oregon. I still see the 1st time seeing the Rockies later Yellowstone then the Pacific. What a great trip for this flatlander and what a great bike!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    That would be an amazing memory

  • @deborahchesser7375

    @deborahchesser7375

    Жыл бұрын

    Were the contacts arcing?

  • @kevinharmon3371

    @kevinharmon3371

    Жыл бұрын

    @@deborahchesser7375 not sure of comment? All three Hondas ran great on the trip there and back.

  • @jamiequinte8577
    @jamiequinte8577 Жыл бұрын

    I just bought a 1975 CB750 and really appreciate your knowledge being passed on.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Well thank you much! I always try to share everything. Definitely check out my 1975 barn find cb750 revival. I have a ton of videos on it as I brought it back to life and now enjoy it

  • @mr.mikeyg.5282
    @mr.mikeyg.52822 жыл бұрын

    Beautiful bike. I had the year/color back in the 70’s. Sure miss that one.

  • @jamesthurber8807
    @jamesthurber8807 Жыл бұрын

    Diagnostic genius. Methodical and knowledgeable will win. Points timing as I practiced a few hundred times.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thank ya

  • @muddyh2os131
    @muddyh2os131 Жыл бұрын

    Fantastic video BJ! I'm in the process of resurrecting a 1975 CB 125. 2000 original miles so this is great info. Right now no spark so...Thanks again, keep 'em coming.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Glad you found it helpful

  • @danthemowermedic4444
    @danthemowermedic44442 жыл бұрын

    Excuse me while I binge-watch your channel! Love the video-style editing. Simple and fun are good! Works and flows well. Getting nervous sweats because I want to ride my 79' so bad. Getting paint-matched bags back from the painter here soon and a top-end rebuild over the winter! I can finally tune the carbs in because the gaskets are leaking so bad lol.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Dan! I have a couple hundred videos to keep you busy lol

  • @PurityVendetta

    @PurityVendetta

    2 жыл бұрын

    I've just found this channel and doing exactly the same myself. Guilty pleasure of watching someone else work for a change. I should be in my shop as I have 3 Norton engines and 3 gearboxes requiring my attention 😱😁

  • @danthemowermedic4444

    @danthemowermedic4444

    2 жыл бұрын

    @@PurityVendetta I have 2 classic Honda's and 2 custom minibikes that need done as well lol

  • @ADVRider78
    @ADVRider78 Жыл бұрын

    Nice and informative! I am in the process of convincing my wife we need a CB750. Found one for just over $1000. Your vids got me wanting one!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    They are such great bikes. I hope you get it!

  • @sqd37l
    @sqd37l10 ай бұрын

    I just got a 1978 CB 750 and I pick it up today. When I was young, that was the bike I loved.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    10 ай бұрын

    Well congrats on getting that dream bike!

  • @sqd37l

    @sqd37l

    10 ай бұрын

    @@BrickHouseBuilds I just got home with the bike. It needs a windshield! 🤣

  • @richardmann145
    @richardmann145 Жыл бұрын

    Thinking about getting a classic bike from my era growing up & wasn't the best mechanic ( Even with point's electrics) but even I can kind of follow what you're doing. Which is big praise if saw me in a garage ( Fighting with spanners & screwdrivers 😁). Made me a step closer to buying my dream ( Mid life crisis) bike & won't be so freaked out by D. I. Y mechanics with people like you out there. Takes me back with mates...... " Did ya check the fuel, what sort of spark ya got " Thanks my friend 👍😁

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thank you much! My goal is to always take the mystery out of doing this stuff and show what it really takes to do it right.

  • @BoB4jjjjs
    @BoB4jjjjs Жыл бұрын

    I just love the look of this machine, the right colour and just gorgeous. The model I always wanted but never had the money. Love the look of it. 😎

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Its a looker for sure!

  • @DocJonesGarage
    @DocJonesGarage2 жыл бұрын

    Nice work B.J. , Didn't feel like it was running long to me, then again I was looking forward to this one specifically. The paint is awesome!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Yea this one isn't too bad for length but part 2 im struggling to shorten to a reasonable length. We will see lol

  • @iantobanter9543
    @iantobanter95432 жыл бұрын

    I ran a cb400f1 for 18000 miles bought from new in 1976-issues were sticking front disc calliper hinge and water ingress to coils- location was prone to attracting road spray. The calliper hinge was alloy and the pin it pivoted on was steel hence prone to seizing-addressed through stripping and copper grease. Bear in mind it was my daily ride in darkest wettest South Wales. One strange issue as failure of the frame tube due to corrosion at the prop stand bracket. It was followed by a cb550f2. I covered 62000 miles on that orange beauty over 4 years. I fitted electronic ignition and a Peter Furlong full enclosure chain case-ugly but effective in extending the life of oil sintered Izumi chains. A Cibie bright headlight conversion also improved matters. The nylon swing arm bushes were replaced with bronze items. A pig of a job-I think the 400 had grease nipples as does my current ‘03 Thunderbird. I always fancied a Difazio box section swing arm but they were super expensive. Keep an eye on the mudguards. My rears rotted through in no time-that old Welsh weather again. Rear brake cam was also prone to seizing-due again to steel to alloy interface-there’s a felt washer which you should keep oiled to keep the h2o out

  • @chillywilly3397
    @chillywilly339710 ай бұрын

    Great video and tutorial. I miss my old 83 Night Hawk 750. Looking at getting another. Your videos definitely inspire me.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    10 ай бұрын

    Thank you!

  • @martinowl
    @martinowl2 жыл бұрын

    A great demo on what to check & how to do it. No great surprise with the degradation of the plugs leads after almost 50 years. The green fuel was different, lol.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank you Martin, I hope it helps some people. The green fuel definitely threw me for a loop!

  • @TheDaf95xf
    @TheDaf95xf Жыл бұрын

    Better bikes than todays complicated machines 👍🏻🏴󠁧󠁢󠁥󠁮󠁧󠁿

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    In some aspects yes

  • @richiebainbridge2608
    @richiebainbridge26082 жыл бұрын

    Excellent diagnosis, great tips too. I had plastic jet in my Yamaha SR 500 single and it vibrated out but never stopped running until it drained the tank of fuel lol. Get shot of them if possible. And yes I did fit the jet in the first place , never again. Cheers Richie.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Yea the plastic jets threw me off for a second! I tightened them less than brass but feel they should stay put

  • @terryanderson8354
    @terryanderson8354 Жыл бұрын

    Excellent!! Thanks for doing the diagnostic demo on the timing. Really enjoying your channel.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thanks Terry!

  • @kampatterson1865
    @kampatterson18654 ай бұрын

    Thanks I appreciate you taking the time to run through cleaning and adjusting the points. Really like your channel.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    4 ай бұрын

    Glad you found it helpful!

  • @inconceivable1220
    @inconceivable1220 Жыл бұрын

    love the attention to detail, keep up the good work!

  • @JDnBeastlet
    @JDnBeastlet2 жыл бұрын

    Great video! Thorough testing and a laundry list of things to fix. With the mangled timing advance screw I thought you missed an opportunity to talk about JIS, but there it is. And while I understand that this a service to get it running right one of the additional things I'd want to do is to fix those side covers with some plastic welding before they split in two (four?) and disappear.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank ya! I'm sure you are watching part two now and in that I address the cracked covers with some epoxy to at least help it last a bit longer. The right side cover was bound to break and fall off.

  • @JDnBeastlet

    @JDnBeastlet

    2 жыл бұрын

    @@BrickHouseBuilds I didn't see a part 2 - I'll be sure to check it out!

  • @bradrennick2919
    @bradrennick29192 жыл бұрын

    Thanks BJ, the resistance testing is something that will come in handy shortly!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Absolutely. Multimeters are worth their weight in gold IMO

  • @michaelbailey8729
    @michaelbailey8729 Жыл бұрын

    I had my carbs sonically cleaned, did a basic balance myself and fitted electronic ignition. Made a heck of a difference. Only bad bit it got rid of the popping in one of the exhausts when throttling off. They never did that back in the day but it was sort of quaint for a 50 year old bike.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    They do run sharper for sure! I would miss that popping as well though

  • @robwinter4173
    @robwinter4173 Жыл бұрын

    i was 17 when that bike came out,i can remember the color being popular,i have never owned or ridden such a big bike,rob

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    👍

  • @SgtMaj-uz4ep
    @SgtMaj-uz4ep Жыл бұрын

    It was amazing to see your video on the Honda I was very impressed on your ability to fix those old classic bikes My first bike was a Honda 750 I bought it when I was 15 years old for $800.00 bucks I had the best time of my life on that bike Now I am riding the ZX14 Ninja and the Kawasaki Concourse 1400 abs still love the speed. Your like Picasso only with bike.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thanks so much!

  • @nevoeirodenso
    @nevoeirodenso Жыл бұрын

    Lembro bem das Hondas com essa tecnologia four. Tive oficina e mexi em algumas mas nunca desmontei o motor, apenas nas Suzuki de motor 2T. Essas eram as motos mais cobiçadas da minha época. Parabéns pelo vídeo.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thank you much!

  • @davehowie03
    @davehowie032 жыл бұрын

    Only a few minutes in and already loving the service work here.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Dave!

  • @blazesboylan7947
    @blazesboylan79472 жыл бұрын

    Excellent video, especially for those of us still riding carbureted bikes.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank you, hopefully they are helpful!

  • @mooch2amber3
    @mooch2amber3 Жыл бұрын

    Don't worry; I will stop sending as we know that you are a busy man. I get chatty sometimes. have a good one. Enjoying the show!!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Glad you have enjoyed the videos Alan

  • @BuellDak
    @BuellDak Жыл бұрын

    Another great video mate! Enjoying your presentations down here in Australia

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thank you much!

  • @felineth56
    @felineth56 Жыл бұрын

    Ouah! It's already in good shape! One of my favorite bike! I want one like that!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Oh this bike is very solid! I recently had it back in the shop and the new owner has spent hours polishing it up

  • @Comrade134
    @Comrade1342 жыл бұрын

    Great content for the moto community. Thank you for your service 🫡.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    I appreciate that thank you

  • @codyjarrett9685
    @codyjarrett96852 жыл бұрын

    Great video. I am restoring a K1 so this is very helpful

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Glad it us helpful Cody!

  • @claeshakansson3939
    @claeshakansson39392 жыл бұрын

    I found this channel yeserday. Really great, exactly what i like. Keep up! Greetings from Sweden!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Well glad you like it! Thanks for watching!

  • @petergross3382
    @petergross33827 ай бұрын

    That was super informative! I just got a 73 and this is so so useful! Thank you!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    7 ай бұрын

    Glad you found it helpful!

  • @VulcanElement
    @VulcanElement2 жыл бұрын

    Great video BJ! I've been chasing ignition issues on my frankenstein XS400 for a couple weeks, finally narrowed it down to bad spark plug cables... then watched this video after. Would have saved a lot of time if I watched this first 😅 Your channel helps keeps my project motivation up! 💪

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Well thank you and I'm glad it...could...have helped lol. I've learned all of this stuff by trial and error so I feel ya. I just want to pass on the stuff I learn to the next person.

  • @markturnbough
    @markturnbough2 жыл бұрын

    Awesome video. Thanks for this! Love this kind of content

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Well I'm glad you liked it Mark! Appreciate you watching

  • @john-r-edge
    @john-r-edge Жыл бұрын

    I owned one of these bikes - with the four separate exhaust pipes - which makes it a CB750-K2. I bought it in 1976 from a dealer, so first registered in 1973? We (me + girlfriend) rode it round France - very steady as a Tourer.

  • @lonniejoraskie4440
    @lonniejoraskie4440 Жыл бұрын

    This was great! My 1st bike ever was a 1976 Honda 750 four F model I loved it.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    🤘🤘

  • @michaelboen
    @michaelboen2 жыл бұрын

    Awesome videos, keep the CB750's coming.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Michael! Hoping to bring my blue 74 in the shop to get running soon

  • @terrigoddard3448
    @terrigoddard34482 жыл бұрын

    Nice to see someone having a play with these old girls. I think you should sweet talk the owner to go for electronic ignition. I did just that on my Z1s and never looked back. Keep up the good work.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Terri, I just hope he is able to put any miles on it this season. He is wise with life experience so throwing that leg over the seat is not as easy as it once was.

  • @terrigoddard3448

    @terrigoddard3448

    2 жыл бұрын

    @@BrickHouseBuilds Tell me all about it. I'm in my 60s, but I still love taking 1 of the old girls out. To watch people's faces, it's like having a model on your arm.

  • @erikeggenbakstad
    @erikeggenbakstad Жыл бұрын

    Hi. Float bowls look they have algae in them. never seen green ones before. Great stuff! Thanks for the upload!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Yeah I really wonder what blend of fuel it had then. Very strange!

  • @AceCafeBikes
    @AceCafeBikes2 жыл бұрын

    This was great, extremely informative!! Great job!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Mike!

  • @anthonyhowells3311
    @anthonyhowells3311 Жыл бұрын

    Great video. Really appreciate the step by step.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Glad to hear it Anthony!

  • @n8rm
    @n8rm8 ай бұрын

    I took your advice and am watching these videos. Im really getting a lot of great advice on what to look for. Quick question I noticed I have oil in one of my reflectors on my forks. I’m figuring it’s a busted seal, but it still has me freaked out a little. Dude are you In Missouri or Vermont? I’m in Oklahoma bro. Anyways you rock!! See ya.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    8 ай бұрын

    I'm in Missouri. You should be able to inspect the fork for a leak

  • @curvebuster
    @curvebuster Жыл бұрын

    Excellent work again 🙂

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thanks John!

  • @Grags-hd1sj
    @Grags-hd1sj2 жыл бұрын

    Great vid, respect from Scotland.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank ya sir! Scotland is on the bucket list for visits!

  • @trekOCLVone
    @trekOCLVone Жыл бұрын

    I learned alot watching this video - thanks for sharing.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Glad it was helpful!

  • @onionfx
    @onionfx2 жыл бұрын

    Enjoying the video! Wee question - when setting the "fire" timing could you set align the fire mark on the crankcase then rotate the timing board until it lights rather than trial and error it?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Tomato tomaahhto. I simply prefer this method to be as exact as possible. It works well for demonstration. I like to test and retest.

  • @MrUzaktakidost
    @MrUzaktakidost6 ай бұрын

    Very educational dude. Thanks. regards from Sydney

  • @BrickHouseBuilds

    @BrickHouseBuilds

    6 ай бұрын

    Glad you found it so! Thank ya

  • @adamradford1910
    @adamradford1910 Жыл бұрын

    Great content! Keep it coming .

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thanks Adam!

  • @calom4823
    @calom4823 Жыл бұрын

    Ur Awesome please keep working on CB750 i got one and im a noob in mechanic and try to keep one alive . ✅✅✅😎

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    This bike was just two episodes but I have a full CB750 revival playlist that you are bound to love!

  • @briancorrigan5350
    @briancorrigan53502 жыл бұрын

    I had this exact year CB750K back in high school in the 1980s. I swapped in a Dyna S ignition in lieu of points and condensers, and accel coils and wires. They had yellow wires with orange boots, therefore, they must be better. Kidding aside, the electronic ignition conversion was the single best improvement, no more pitting points, checking dwell angles, and wondering what the difference between a good and bad condenser is. It also had Weisco 811 pistons, a Kerker 4 into 1, re-jetted the stock carbs (although 29 mm Smoothbores were the goto swap back in the day), Barnett clutch, re-valved damping rods and progressive springs up front, tapered bearings in the front stem, a trimmed front fender. I also ran all the control wires through the inside of a low rise GP handlebar. Had Orient Express perform the machining work for a 5 angle valve job ( or was that 3 angle?). Super reliable and durable. Nice work, thanks for the happy memories.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    I'm typically all for upgrading and updating but this wasn't needed here. Just keeping it simple. The bike is local to me so if the owner starts seeing issues this season it can be addressed then

  • @briancorrigan5350

    @briancorrigan5350

    2 жыл бұрын

    @@BrickHouseBuilds I hear you, it is not your project bike. Do what the customer asks. I would be scuffing the back of those side covers, mixing up some Part A Part B epoxy reinforced with some fiberglass mesh. That will stop those cracks and make it stronger than stock. Ideally you would also do some work on the front face, but that means a respray.

  • @leebenson4874

    @leebenson4874

    2 жыл бұрын

    I just finished the 4th rebuild of my 75 Honda CB750F. Got her when I was 17.

  • @marcusscott9800
    @marcusscott98002 жыл бұрын

    Outstanding video. I am a new subscriber and I am preparing to restore a Honda cb400F so your tips and techniques are just what I needed. Keep up the great work and thanks for your help! Do you have any videos on how to remove a stuck spark plug out of a barnfind?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks Marcus! CB400f bikes are so cool! Although its not a motorcycle my buddy Nathan recently put up a video on plug removal for an old Model T he has started on. May be worth a watch. kzread.info/dash/bejne/eKlhj5N_dczImZM.html

  • @marcusscott9800

    @marcusscott9800

    2 жыл бұрын

    @@BrickHouseBuilds Thanks for your help!

  • @lorddeuceington6043
    @lorddeuceington60432 жыл бұрын

    great video! might be worth mentioning that all the old Japanese bikes have stripped screws because they are JIS (Japanese industrial standard) which is not the same as American philips screwdrivers. *EDIT. i wrote my comment before you mentioned JIS screwdrivers... :)

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    I could be a spokesperson for JIS drivers on this channel. I mention them all the time haha

  • @user-vn9zr7ej9l
    @user-vn9zr7ej9l5 ай бұрын

    Nice old bike thanks for the info .

  • @BrickHouseBuilds

    @BrickHouseBuilds

    5 ай бұрын

    🤘🤘

  • @MotoMango
    @MotoMango2 жыл бұрын

    Nice work as always!! 🤘

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Many thanks!

  • @sugarskulllyfe5890
    @sugarskulllyfe5890 Жыл бұрын

    its amazing how much of a headache these bikes must have been for mechanics.... im amazed at all cb videos ive seen someone has always tried to repair different or find some janky repair etc

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Yeah I've had to fix many many previous "repairs" that were extremely poorly done

  • @henryhawk978
    @henryhawk978 Жыл бұрын

    Enjoyed the video and RIDE SAFE!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Glad you enjoyed!

  • @Bounce625
    @Bounce6252 жыл бұрын

    Loving this content 👍

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank you Neil!

  • @doniturner5077
    @doniturner50772 жыл бұрын

    This should help me a lot I have a cb750 four super sport. Thank you sir

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Glad you found it useful. Even just double checking the basic systems can be a good thing to do

  • @eddy2121
    @eddy21212 жыл бұрын

    Those nylon jets were cheaper and touted as nitro safe. Great Channel very enjoyable.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks for the info! They threw me for a loop at first. I appreciate it 🙏

  • @luiscarvalho6807
    @luiscarvalho6807 Жыл бұрын

    🦅 MÁQUINA COMPLETA, MELHOR RONCO ATÉ HOJE DE UMA 🛵 MOTO , DESIGN E COR SENSACIONAL, CB 750 FOUR HONDA MAGNÍFICA E INESQUECÍVEL 🇧🇷✝️🌎

  • @kalaharimine
    @kalaharimine Жыл бұрын

    You may have missed your 2nd calling as a teacher, very informative thank you.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Well thank you! I have always been an "explainer" so this feels natural to me

  • @kmani69
    @kmani69 Жыл бұрын

    Beautiful Bike !

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    It looks even better now with its new owner!

  • @franklinnieto8211
    @franklinnieto82112 жыл бұрын

    I went ahead and did all the test that you have shown on the video. Which was great by the way. Caps read at 4.8. Primary 4.9 secondary 16.6. I added new plugs as well and new battery. When I tried do the timing test with light it wouldn’t turn on when the marks lined up or at any point when I rotated on either 1-4 or 2-3. Do you think the condenser is bad ? I cleaned off the points. Btw the switch was in the on position. I’m running out of ideas here bc my initial diag was no spark on any cylinder…

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    You sound like you are working your way through it. Id start checking for voltage where it should be and see if you have excessive drops or no voltage at all

  • @LeonardoCostaUSA
    @LeonardoCostaUSA5 ай бұрын

    Great video man!!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    5 ай бұрын

    Thanks so much

  • @Peter-ln3mz
    @Peter-ln3mz28 күн бұрын

    Thanks for sharing your knowledge really enjoyed video. I read that one of initial checks on machine should include inspection of valves (x8). Would you agree or is it unnecessary?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    28 күн бұрын

    Never hurts to check

  • @Thewatson77
    @Thewatson772 жыл бұрын

    Great info BJ 👍🏼👍🏼

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank ya sir!

  • @ansonlow7764
    @ansonlow77642 жыл бұрын

    I really like your channel so much it bring bring good old memory of mine riding time in the mid of the 70. This bulb matter bring back.mine time. You CBX 1047 bring back those good old day which I own one. Now sure it history for me. I just love you channel very precise you give this old horse a good new life. I still live in the old world 🌎 ha ha.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    IM glad you like what im working on Anson! I love these older bikes and making them run as they should really motivates me

  • @ansonlow7764

    @ansonlow7764

    2 жыл бұрын

    @@BrickHouseBuilds Not like old bike. New generation bike may be better. But with all those groove electronics riding aids. To me is not too much of a fun at all. I kind of old school old bike you can get it fit. If you are out for a touring. The new one if they don't start cranking the engine you at surrender. You can look at the sky n pray. Old school you still got a chance to get it fit.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    @@ansonlow7764 I agree but do like both. The older bikes take more care as they must be treated differently but are very rewarding. New bikes sure are comfy and smooth though!

  • @chrisscott7522
    @chrisscott7522 Жыл бұрын

    Superb video & timely as I’m looking for a rough 550/4 to do up. Don’t Hondas use metric bolts ? I wince when I see the sloppy fit of your 15/16” spanner /wrench !!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Yes, of course they use metric. That isn't a nut being torqued, tightened, loosened, or put under any load so its perfectly fine to use for demonstration with the points.

  • @mendingmotos
    @mendingmotos3 ай бұрын

    Beautiful bike! Would love to restore a cb550 one day

  • @BrickHouseBuilds

    @BrickHouseBuilds

    3 ай бұрын

    Hard to beat a sunburst orange cb750. Cb550s are great

  • @bmmyday2401
    @bmmyday2401 Жыл бұрын

    Pure motorcycle. I love her as my Kawasaki W800 !

  • @georgemcpherson3706
    @georgemcpherson3706 Жыл бұрын

    love the content makes me wanna find an old bike butt..... love my ZX6R, Z650 RS and ninja 400

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    All great bikes though!

  • @scottmoto
    @scottmoto9 ай бұрын

    I just picked up one of these a few days ago. Same bike. 500 bucks, barn find. I will restore it completely, down to the frame.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    9 ай бұрын

    Thats awesome!

  • @scottmoto

    @scottmoto

    9 ай бұрын

    @@BrickHouseBuilds Thanks.

  • @louishuther2534
    @louishuther2534 Жыл бұрын

    Love your show

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Thank you Louis

  • @wsbill14224
    @wsbill14224 Жыл бұрын

    The CB750 is an Icon because it was so great, but the GS750 soon followed and it was as good and cheaper. I own a GS1000L. I love these bikes.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    These have their place in history for sure but yes bikes got even better quickly after

  • @luiscarvalho6807
    @luiscarvalho6807 Жыл бұрын

    🦅CB 750 FOUR HONDA A LEGÍTIMA SETE GALO , RONCO INCONFUNDÍVEL, RONCO MAGNÍFICO, UM AMIGO TINHA UMA VERMELHA,E CROMADA COM PNEUS GROSSO, ERA UMA MÁQUINA LINDA , SÓ QUE INFELIZMENTE ELE PASSOU UMA CURVA DIRETO EM ALTA VELOCIDADE E ACABOU LEVANDO A VIDA DELE E DE SEU IRMÃO E A MOTO PARTIU AO MEIO, INFELIZMENTE LEVOU A VIDA DELES🇧🇷✝️🌎

  • @jimclarke1108
    @jimclarke11082 жыл бұрын

    Great looking bike the old CB750

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    That they are! To me one of the best looking factory bikes ever made

  • @jimclarke1108

    @jimclarke1108

    2 жыл бұрын

    @@BrickHouseBuilds And the Z900 .CBX 1000. 3 of the best looking

  • @pb7379-j2k
    @pb7379-j2k Жыл бұрын

    I was gonna ask if you use JIS screwdrivers then I saw your note appear, thanks for a nice video!

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    A must have

  • @godwor848
    @godwor8482 ай бұрын

    What I know from the old masters, when there is a little bit advance on the ignition, the motor pulls nice & hard ! I really enjoyed that channel ! Thank you from EUROPE ! Is a good idea to keep in the pocket strip of sand paper to clean the contact if file missing ! Just fold small half inch strip and put between the contacts and sand a bit .How much fuel "eat" this monster ? :)

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 ай бұрын

    Glad you enjoyed! You should look up dental filing strips as they are a thin metallic strip perfect for filing points. Also these are pretty efficient and can get nearly 50mpg on flat. 45 is average

  • @justinsmith847
    @justinsmith847 Жыл бұрын

    My dad just got a cb500t it's got my wheels turning for sure kinda dig it if I'm being honest

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Those are great bikes. One of the best vintage twins I've ridden

  • @hvacr24
    @hvacr24 Жыл бұрын

    Man I love your videos BJ! What city and state do you live in? I'm in Grand Rapids Michigan but I'm from a small town called Aurora, New York and cayuga lake. I've been tinkering with motorcycles since I was 14 I am now 45. Your videos are very educational and entertaining. What made you get into Seventies and eighties motorcycles? There's some beautiful riding around 5 of the finger lakes in the Spring and summer times especially at night... Maybe I could interest you to come up this way sometime and do a ride for an entire weekend!?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Well thank you! I very much appreciate you giving my other videos a shot as I have a bunch. Im located near St. Louis actually so not terribly far

  • @mebeasensei
    @mebeasensei Жыл бұрын

    Someone earlier didn't use JIS screw drivers on the points adjustments? Stripped out the cavity/slots?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Correct

  • @krabkrabkrab
    @krabkrabkrab2 жыл бұрын

    I owned the CB750 and did all my own maintenance for 30 years. A couple points on points. (1) The points plate wanting to be all the way over to one side is often because the points gap is incorrect or the advance mechanism seized. To make sure, check the points cam and centrifugal advance; disassemble and re-grease. Make sure the felt oiler has oil in it. (2) For static timing, I never used a light bulb. If your work space is quiet, you can hear the tiny "tick" sound when the points open and the ignition on. But it is far better to use a timing light, that way you can check timing at both the idle speed and that the advance works correctly, by revving to 3000RPM.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thanks for the input Rick. I've worked on and own more than a few 750s among other bikes. The advance was free and spring tension felt good. I did my best to estimate dwell angle but never mentioned it in the video. Felt was good. I've just used the bulb method many times and it works much better for visual demonstration which is important for these videos. Correct on timing light which I have but felt no need to use after setting it as you see. The bike ran like a top so I left it at that.

  • @fryloc359

    @fryloc359

    Жыл бұрын

    I was workin on my ignition one day in the driveway and realized I could hear the click. I clicked it a few times and the dang thing started! Thankfully I was in neuitral.

  • @uhtred7860
    @uhtred78602 жыл бұрын

    Those grips look like the same ones i had on my push bike as a kid in the 70s :-))

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Yeah they were pretty bad lol

  • @kevinlewis9151
    @kevinlewis91514 ай бұрын

    I have a 1979 cb750 four K and it's locked up tighter than a drum, but was free when I got it. Only thing I've done is rebuild the carbs and try to start it.

  • @raymondpick4945
    @raymondpick49452 жыл бұрын

    Nice Video Never Seen Plastic Main Jet On Carb.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Thank ya! I hadn't either but now I know!

  • @Badenhawk
    @Badenhawk2 жыл бұрын

    I literally discovered yesterday that my cx500 right cylinder isn't firing. I took the plug cap off, put it back on and that worked for about 5 mins and then not firing again. I'm still really new to bikes and it looks like I'll be investing in a multimeter.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    Once you buy a multimeter you will wonder how you got by without one. An EXTREMELY worth while investment.

  • @jeffwhitsit8842
    @jeffwhitsit8842 Жыл бұрын

    Just got the same bike and it’s basically in pieces the motor and carb is bolted in and everything but other then that it’s basically in pieces, any tips on where I should start first in the process that’d be awesome

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Hey Jeff, always best to start with taking an inventory of whats there and forming a budget. This video does just that > kzread.info/dash/bejne/c5Z8zaWamNLVhrg.html

  • @matthewmacsasuke-bb4rr
    @matthewmacsasuke-bb4rr6 ай бұрын

    That bulb you used to test the timing, is that something you can order online? or did you jerry rig that together? Thanks. great video also👍

  • @BrickHouseBuilds

    @BrickHouseBuilds

    6 ай бұрын

    You could find a test light at an auto parts store or just rig some 12v thing up. Doesn't need to be fancy. Mine was just a spare bulb from a gauge

  • @matthewmacsasuke-bb4rr

    @matthewmacsasuke-bb4rr

    6 ай бұрын

    @@BrickHouseBuildsgreat ill try it! thanks for the reply 🙏

  • @michaelmathews295
    @michaelmathews2952 жыл бұрын

    I have been repairing this type of motorcycle for the past 12 years out of my garage. It amazes me that people will drop the bike off dirty to me. Do you think you'll get me to do a better job with an inch of dust on it? I do NOT wash the bike unless it's so bad that I'm worried about stuff falling in the cylinders and even then, I do the minimum necessary. So, if you want your latest barn find to get back on the road, wash the damn thing before you take it to the mechanic.

  • @BrickHouseBuilds

    @BrickHouseBuilds

    2 жыл бұрын

    I hear ya and some bikes are pretty nasty but this one didn't bother me. This customer is cool anyway

  • @accuracymark
    @accuracymark Жыл бұрын

    Was wondering when adjusting the timing why not put the crank on the position you want the light on and adjust the plate until the light comes on?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    This is per the book. Feel free to do it the other way of you like

  • @MarkBrown-gc6hr
    @MarkBrown-gc6hr Жыл бұрын

    Great job. Where do you source parts for your old CBs?

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    Pretty much anywhere. There is a huge aftermarket support for these as well as companies that carry OE parts. Partzilla, cmsnl, david silver spares, ebay, 4into1, and many more

  • @romeparrilla8307
    @romeparrilla8307 Жыл бұрын

    can you give me any idea about my 1978 yamaha 100 enduro kickstart only halfway thats why it wont start?its suppose to kick start all the way down,but mine seems like only kick start halfway?thank you very much

  • @BrickHouseBuilds

    @BrickHouseBuilds

    Жыл бұрын

    I wouldn't know where to start not having the bike in front of me sorry

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