Nice work! That homemade bumper may have to go to be a $4500 YFZ, however. Haha

@Anticidal25901

2 жыл бұрын

Not in todays crazy ass market. I’ve been selling some turds for way up there.

@craigmorgan4676

2 жыл бұрын

@@Anticidal25901 such as?🤔🤯🤔

@jeremylove1122

Жыл бұрын

For sure lol that bumber looks horrible

@2stroketyson79

11 ай бұрын

@@craigmorgan4676 such as the lies he spews as they all do

Very well done on that one. You stuck with it and saved it. Way to go Joe !!

I'd repack that exhaust. That packing is probably jacked from burning all that oil

@billybonewhacker

Жыл бұрын

Yeah maybe he could put all the Drawers back in the carburetor as well. And the spark plug is missing its Sunday bowtie

Hey Awsome video man been watching since day 1 every morning before school or after love the videos as always keep up the good work

Already know this is gonna be a Great video Joe!!

@dietznutz1

2 жыл бұрын

Joe mama

Can't go wrong w/YFZ450s! Nice work.

Awesome brother love the rebuilds you do very cool

Seeing you post a video is always a highlight of my day

@Allan-jy7ue

2 жыл бұрын

Same m8. Always look forward to a new video

@askfadzean

2 жыл бұрын

me too its currently 3am i watch them before bed :)

All these mechanic’s in the comments but don’t even have a KZread channel anywhere near as good as this guys. Keep up the work and doing you!

@theblishknovk

2 ай бұрын

I was thinking the exact same thing. This dude is helping thousands of people learn engine repair stuff and just because there are one or 2 thibgs he night do that some "pros" may disagree withn they shit on him. This channel is amazing.

NICE JOB!! I live in Oregon, todays market where I live 5k to 5,500k for the YFZ450, our market has blowing up the past 3 years everything from SXS quads dirt bikes have skyrocketed to a all time high. Everyone wants to ride the sand. Dunes now and take advantage of our awesome riding we have here in Oregon. Our sand dunes are the best in the USA..

For the backfires it may leak the exaust from somewhere and the jets maybe its ok(sorry for my english i'm mechanic from grecce keep the good job)

@alfredorodriguez4539

2 жыл бұрын

Yup maybe dropping the needle a few clicks since it is running a little lean, or checking for the header nuts they often get loosen after to many times being taken apart or overtightening them makes them come loose, if so try double nuts so they dont move.

@funtyes1970

Жыл бұрын

@@alfredorodriguez4539 i didn't hear anymore backfire when he was riding I guess it fix

Another awesome video!

If its coming from the over flow then it may have been working out the bubbles in the system and may have been over filled. So that may not be an issue.

Nice man!!

Nice rebuild!

I think there is something funky with that carb,the fact that it came with two has me suspicious.

@funtyes1970

Жыл бұрын

lol why really dude.it don't matter he won't own it for long it will sell

nice job lad well done

Another one saved 👍🏼👍🏼

Backfire is usually a sign of lean yellow flame shooting out is usually to rich but I've had issue with popping just from needing a new exhaust gasket or headpipe not being tight enough

outstainding info ..ty so much

Awesome Job.

Love the Raptor series quads, that 450 is almost as spunky as the 660r. Mine is now a 686 stroker and fast as hell.

Wow man that is my dream quad 🔥🔥 loving it 🔥🔥🔥

You need to go back to factory jeting , and then tune idle and tip-in with adjustment screws. And then jet for your pipe later. Also it looks like to me one of them intake valves was sitting lower than the other two.

Leaking coolant because you need to change wather pump selas, I have a same problem. Nice video

Got the lean pop on decel, valves are loose too that ticking would shit me. Definately doesn’t sound right. I would go back to oem carb specs and start again. It’s only got a slip on so shouldn’t be hard to get right

Great job joe sounds brilliant don't no where all the negative comments come from I think you've done an awesome job on this and yeah it is worth the money take care mate and all the best 🔧🔧👍👌🔧

its a good looking quad for sure. plus, Yamaha is the only sport quad maker currently so all YFZs are popular/valuable right now. Ya, I agree, 4500 for sure. Thanks again for another sweet vid and as always, be safe my friend :)

ALL HELP APPRECIATED (03 yz125) Can anyone help me figure out why my bike isnt getting fuel through my carb... I did a full rebuild on it, float moves freely and i set it to where it needs to be, and she still doesnt get fuel through the carb. When I spray into the carb it kicks. Also it leaks fuel from the front of the engine block looks to be a seal problem. (compression is fine)

What’s that tool called you used for the valve seat width

Sounds like a vacuum leak between carb and intake spray card cleaner around there see if reves go up.

Have you tried adjusting the fuel screw I had a similar problem wirh a backfire and the fuel screw adjustment was the fix...

nice work

You have to change your water pump shaft. It had some scoring we could see in the previous videos. Mine had the same issue, any minor scoring causes it to leak past the weep hole. I had changed mine to an aliexpress one, it got scored again after some rough motocross track riding.. i think i will purchase an OEM one and try again.

@travisharvey883

2 жыл бұрын

Yea I had to do the same on my cr80

There should be holes in the carrier bearing housing on the sprocket side i use a nut driver that fits in the hole through the sprocket spokes then rock the quad forward or back using the force of the sprocket bumping the nut driver to adjust the chain so not to scuff up or to avoid beating on a screwdriver its easier especially if its stuck in place and needs persuaded. I had my water pump seal leak after fresh rebuild 1 time and that was it weirdest thing. Just a thought on the decel backfire I had a aftermarket pipe that was not perfectly round at the head where it mounts and wasn't getting a good seal at the gasket ended up shaving it down on the hi spots so it seated to seal up decel pop went away.

@connorbrundage4612

2 жыл бұрын

Was coming into the comments to comment this but you beat me too it

Back Fire me coust by the carb choke had the same issue with mine

Ill bet ur so glad its done for most part and just ready to flip it n forget,been some real headaches and issues for you.but its turned out nice despite that questionable head.nice!!!snooky pa.🤟

New sub .bro I'm really liking ur clips so far dude I'm gna have to back track and catch up 👍👍

Are there any cracks on the intake boot.

Beautiful quad and again killer video man you have some of the best build/fix videos on KZread I’ve been watching and subbed for almost 4 years now and haven’t missed a video yet great job man you give sabo a run for his money

I’ve been trying to figure out the wiring on my raptor 350 and I guess I did something wrong because when I connect the battery the start automatically starts going? Any tips

My drz125 is having the same problem with the backfiring I don’t know what it is tho I cleaned the carb and made sure the valves were in spec and still it backfires. If anyone could help it’s a 2021 it just randomly started happening it has good spark and gets good fuel flow.

Try adjusting the fuel screw bet it cleans the poping up should of done that before messing with the jetting

Yea man last video I threw it out there to Hone the vales I can't wait to watch this one

Good 2 see u started lapping valves. Easy step while u have it apart. A lil added insurance

check the slider for the THROTTLE VALVE PLATE, a lot of people put that upside down, the part with a small hole goes down, put a pilot jet #50 and the mixture screw to 3 turns, maybe you have to drill a copper cap that is covering the mixture screw, Use a 5/32 drill bit to drill the copper cap that covers the mixing screw, do the Zip Tie Mod to the acceleration pump, change the needle to NCVQ and put the clip in the fourth position

@ralatgonzalez

2 жыл бұрын

if you have another yfz450 with the same carb, switch it to see what happens

Amazing

Sticker: Heat gun & plastic razor blades.heat gun shines up plastics nice.

NIIIICE 🔥👍✌️

Kenny Roberts colours ftw

When you pull aluminum bass apart and then your retighten it retorque it it moves around when it gets hot then cold and receipts you got to understand how luminum works with cold temperatures in hot temperatures it moves around a lot and it's got to reseed itself and you have to retorque all them bolts

Hey my 50cc 2stroke moped starts when i put gas in sparkplug then dies i changed reeds but i dont know whats wrong i cleaned carb in carb is fuel but its looks like it wont go in cylinder

I've been having trouble with a raptor 660r dual carb tuning

Good shit bro! I love your videos. Did you ever put in an oiled air filter? No air filter will cause it to lean out and backfire. It's real close to being 100%

I wanna see some old 2 stroke dirtbikes! Mostly CRs.

Insane quad🔥 I hope you will build a 250 or 450 sometime in the future like crf, kxf, rmz or yzf! Would be cool to see those bikes on the channel!

Just a test but that exhaust maybe causing the backfires. try your other yfz\s exhaurst if it runs betting pickup a pipe or silencer for replacment. JUST FYI

If the valves were leaking the vaporlocking effect from the leaking headgasket may have bent the valves?

Nice job man! Only think I can say is you put your masterlink clip on the wrong way the round end (closed part) should facing the direction of orientation to prevent the clip being knocked off

@funtyes1970

Жыл бұрын

lol yeah ok Mr. expert.

@jmar3956

Жыл бұрын

@@funtyes1970 my qualifications would say so yes thanks 😁🖕

its going to ring seize!!!!

I change that exhaust back to stock that might fix your jetting issue and also if you listen to the video there's a slight tap

Bumper gotta go ASAP lol

Wiesco makes pro X

Joe I just bought same bike as this At night I notice the header pipe is glowing orange . I checked the plug and it doesn't appear to be running lean. Any ideas ?? I need to check the jets probably?

It sounds like the CDI isn't advancing spark upon increase of throttle / engine speed.. Might be why backfiring

Do you know how to titen valves on the 400ex

What’s the tolerance for the piston on average for most engines of each manufacturer (Honda, Yamaha Kawasaki etc.?

It is a nice quad

Yellow grips would be sickkk

Maybe the backfire issue is caused by a small air leak in exhaust front pipe .

Great vids bro I hope you can find a suzuki ltr450 next and we can run them against the other 450s for comparison

Good job bro but usually me when I tighten a chain I put it tight cuz it'll loosen up right away that's still loose I put it tight tight

What I have done when I ordered the piston that was tight like that I actually just slight ran the hone it the cylinder it really didn’t change the gap but made for smoother cylinder surface and better compression

@Derekmoss82

2 жыл бұрын

I did that instead of filing the rings

@clemcon501

2 жыл бұрын

I was thinking this

What happens if you have very little ring gap?

Nice quad

Check bolt tightness during initial brake in period.

Idles perfect to me.

Really should have had new sprockets with the chain they are badly worn. Is the backfire an over fueling issue as it's normally unburnt fuel in the exhaust unless the timing is slightly out somehow

My son same thing about wiesco piston. He hates them so on my 2010 kx85 I went with prox high compression piston too

2:46 🥰👌👌

Could be still running lean. Start it and rev it up and pull the choke out to see if it still backfires.

Where do you get those

Try changing the muffler packing for the backfire

They are called keepers.

look for small exhaust leak may be sucking in cold air and maybe change the plug

Hi back fire is almost for sure because its a little Lean on the jetting not much But a little Nice work man

Isn't that outer water pump seal in backwards? Great video keep up the good work. ✌

A bit snug is good just not jamming tight. Gonna run like a beast.

Do you have to divide the clearance by 2, because the clearance on the side you are measuring is maybe 0.003 inch but the other side is 0 at that moment (because you push the piston against the cylinder). Shouldn't there be 0.002 inches clearance on both sides at the same time?

@Carl223

2 жыл бұрын

Should be using telescopic bore gauges and micrometres for a lot of stuff he does. Not feeler gauges and clapped out digital vernier calipers.... The list goes on. But I agree. Clearance should be overall not pushed to one side. And even if he had feelers won't tell him if the piston and/or bore is out of round in spots. He makes enough money from flipping them and KZread to not be using claw hammers and old sockets to drive seals in. But splurges on tooling in other areas. Strange cat.

@fullmetaljacket7

2 жыл бұрын

@@Carl223 the hack job side of it is what makes me want to watch his videos lol I find it pretty funny!

@Carl223

2 жыл бұрын

@@fullmetaljacket7 the lolfactor haha

hi joe , hope you and jade are good and keeping okay ! Just a quick question .... in all your builds i have watched , (Most of) I have never seen you check cylinder or head surfaces for levelness , do you not do this ? Also the solvent valve leak test (which you did and didnt show here) ..... I'm just in the middle of rebuilding my own yamaha tw125 atm and I'm going to have a go at these things , i figured why not ask. i never thought i would be able to dismantle and reassemble my own engine , despite working in a motorcycle garage for a year recently. awesome stuff

@michaelamos2336

2 жыл бұрын

He tested the cylinder when he fitted the Rings

i have that same exhaust on my 03 kfx434

@2vintage

2 жыл бұрын

It's pretty nice!

You got to have a better front push bar laying around that thing needs to go and will improve the value some .

Well you just answered my question if I would have continued watching

I liked that atv

Backfiring is usually related to a timing issue.

@Whoop!

I don’t know about a 4500$ quad. Like 3-3500$

Those quads are lemons . but when there brand new and mint there a beast ..just to many problems ..everything has to be perfect

The more it gets broken in the better it will run. I was hoping you did a rip down the road.

@theboogieman401

2 жыл бұрын

He did . lol u ended the video to soon my g

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