You can push em onto the old boots alone, the trick is to use a ratchet strap to hold it in place, pop the left side in, then the right side and the middle carbs will find their home if everything is lined up. Thanks for the update!

@jerryking1434

3 жыл бұрын

And a little dribble of ATF ..worked for me ..

You have made an exquisite piece, it deserves way more views. Your knowledge and approach to and of things is masterful yet simple. Keep doing what you do!!! I had an XJ650 in red that I inherited from my Dad, I T-boned a car at a lowish speed (traffic circle) but it wrecked the forks and I was too inexperienced to fix it ,I sold it for almost nothing. It had the dread stretched alternator chain that I thought was the timing chain at the time - but you enlightened me, in fact , had I held onto the wrecked bike, these videos would have encouraged me to fix it! My favourite part of the bike was the massive headlight and the least was the rear end and the thin big 'Italic" wheels it had. You fixed and kept all these: therefore the perfect XJ. If I could constructively critique one thing it would be that the headlight always had a kind of 'bucked tooth" look, you having used the original headlight bracket has brought this across and along with the minimalised instrument cluster it has made this slightly more prominent, but it is part of the charm this bike's design and by no means takes away from your awesome ability and work you have put into it. Absolutely love the stellar work, put forward with unassuming humility - Thank you.

@Mezzmoengineering

3 жыл бұрын

Hi Mate, thanks for your kind comments. Glad you like the bike. I'm looking forward to finally getting it out for its first proper ride....

Very solid video brother! I'm digging that exhaust and mag wheel setup, I had no idea there were aftermarket rims available. Currently working on an 83 750 with plugged fuel passages in the bowls so I appreciate the motivation!

@Mezzmoengineering

2 жыл бұрын

Thanks Mark

I bet you get it spot on , Great share ! ENJOYED

@Mezzmoengineering

3 жыл бұрын

I hope so, thanks mate

Sounds good!

That is one HOT looking bike.

@Mezzmoengineering

3 жыл бұрын

Thanks mate

Awesome build!

@Mezzmoengineering

3 жыл бұрын

Thanks!

I have an 82 xj750. I was just wondering what’s up with that air filter on the engine on the left side by the crank case? I’ll look threw more of your videos to see if you covered it

@Mezzmoengineering

3 жыл бұрын

Hi mate, that's a filter I used as a crankcase vent. Usually that goes back into the air intake

@beardedcatguitarplus9485

3 жыл бұрын

O that’s cool. I like that idea. When I can afford more parts I’ll be giving that a go on mine for my channel. I wish I could do a full rebuild on mine like yours cause your bike turned out absolutely amazing, hats off to you. I may bug you later at some point for some advice on mine lol.

@beardedcatguitarplus9485

3 жыл бұрын

Thank you for the response

I am taking apart my carbs and now, after 8 years of use I have seen that actually my engine belongs to a xj750rh 1981. I bought a carb kit for a XJ650 because first I thought that was my motorbike and because I can not find replacement in Spain or Europe. Somewhere in the past, an old owner must have swaped the engine on to a 750. My main needle has got an incription Y13, fuel jets are #120, #40 and air jets #80, #225. With the main needle (Y13) in my hand I tryed to insert it through the nozzle and it went all the way down. Doing the same test with the main jet and nozzle from the kit I bought for a xj650 it won't go all the way down in to the nozzle. This makes me think the Y13 nozzle from the xj750 is thinner than the one for the xj650. I don't know if the main needle from my xj750 is working fine or it goes all the way down in to the nozzle because it is worn. From outside it does look fine, no rust or dirt. What do you think, should I change the main needles and nozzles? If yes, where could I find them? I checked already online shops such as der-muede.de, motorradbay.de, wömbi.de. XJ4ever forum it's to expensive to send replacements in Spain. I would really apreciate if you can help me out. Many thanks

@Mezzmoengineering

2 жыл бұрын

Hi mate, if the engine is not running well then you should try take it back to original settings. You should check the part numbers for both the 650 and 750 to check if the nozzles are the same or not I'm not sure on this. The needle is definitely different. Parts aren't easy to find or cheap anymore, I found what I needed either at my local Yamaha dealer or ebay. Hope this helps

@bestione761

2 жыл бұрын

@@Mezzmoengineering Watching your videos, reading a lot in xj4ever forum and now after taking apart my carbs I know a lot more about my carbs (thanks for that!). I want to leave everything as it was, I don't wan't to change or tune nothing but I wanted to change everything that could be suspicius of being worn and that could be one of the parts. I know all the jet sizes and main needle (Y13 belonging to a USA XJ750RH 1981 OG2) and I have also read that the nozzle size for both xj650 and xj750 is 3,2 mm. If I can introduce my xj750 Y13 main needle all the way down in the nozzle but not all the way down in the xj650 nozzle it seems like my nozzle could be worn I guess. I started to adjust the valve clearence, now I cleaned de carbs (thanks to you!) and I am trying to replace as much as I can or better said as much as replacement I can get for a XJ750 in Spain. I started all this process because the idle did not get down fast from 3000 rpm to 1000 rpm. I tryed first to sincronyze the carbs (with YICS toll) and play with the pilot mixture screw and did not make any diference that is why I decided to change the throtlle shaft v-seals, the rubber boots fuel pipe O- rings in case of unspected air intakes. Now that I have cleaned and replaced everything I could, the only doubt was about the main needle and nozzle. Now I guess I am going to mount the main needle and nozzle back again because I don't think this could cause my idle issue. Finally sincronyze again and tweak the mixture and let's see if it works fine. I would let you know. Thanks mate!

@Mezzmoengineering

2 жыл бұрын

@@bestione761 Good luck, I'll be interested to hear how you go.

Mezz did you ever resolve the rich plug issue I’m in the same boat color tune was decent but plugs are black

@Mezzmoengineering

3 жыл бұрын

Yes, in the end I found my choke circuit was passing a bit. It runs pretty well now but just needs a bot more fine tuning. Its cold here now so might be on hold for a while

great skills you have. The reason your rich is because you're measuring the floats incorrectly. you have to turn the bank up at an angle to were the carbys float tangs just touch the float needles top spring rod. once that happens you measure just like you did.

I have a 1980 xj650 and the choke cable is gone. I purchased the bike second hand can you help with telling me what I should be look for to figure out how to trace where the cable could be located?

@Mezzmoengineering

Жыл бұрын

Hi mate, the choke cable goes from the control lever which is usually on the handle bars down to one end of the carbies at the top. There's a bar that runs along the top of the carbies that joins all chokes together so all 4 carbies operate from just one choke cable. Its a very simple set up, hope this helps...

@imanijohn5999

Жыл бұрын

Yes that helps. But what can I do if the bar isn’t there to control the carbs I have the cable from the Handel bar but when I seen you carb their was a bar that was missing on mines. Do you know the name of it or where I can order that part?

@Mezzmoengineering

Жыл бұрын

@@imanijohn5999 Hi, not sure where you will find that part. Probably a good starting point would be ebay...or your local wreckers

Hey I have the 700 and I’m turning it into a 750 and I was wondering if u could take the length of the jugs and the head if u have 750 parts laying around of course would appreciate it a lot I don’t have any laying around and I don’t want to get them for nothing

@Mezzmoengineering

3 жыл бұрын

Hi Logan, I don't have a spare laying around. the 650 and 750 jugs are the same height etc, but I think the 700 might be different....

@loganlogan732

3 жыл бұрын

Oh ok so if 650 an 750 are the same hight the 700 is as well and the 750 and 700 are both 65mm that pretty much means they’re the same top end except the the 750 piston is flatter on the top. I was gonna just put 750 rings in my 700 but I was told the two top compression rings are a little thicker I mite just leave my 700 crank which is actually a 650 turbo crank a bit stronger then the other ones and the 700 actually puts out more hp then the 750. u think I mite be able to get away with just putting 750 pistons in or try and make the 750 rings work in my pistons

@Mezzmoengineering

3 жыл бұрын

@@loganlogan732 I don't think the 750 pistons will work. The 750 bore and stroke is 65X56.4 and the XJ700 is 65X52.4. The pistons will only work if the stroke is the same. The XJ650 has the same stroke as the 700 but the bore is only 63mm

@loganlogan732

3 жыл бұрын

@@Mezzmoengineering I shall a picture of the two they look to be the same except the 700 top was a little bit higher but do u think I could just get 750 rings and try and make them fit

@Mezzmoengineering

3 жыл бұрын

@@loganlogan732 The height difference will be for the stroke difference. 750 rings might fit, I don't know if they are the same thickness or not...

Can you please explain why my bike will idle but when I hit the throttle it’ll bog down. It’s an 81 xj650 maxim. I’ve cleaned and rebuilt carbs over and over again and it just keeps doing the same thing. It starts right up but I cant give any throttle

@Mezzmoengineering

Жыл бұрын

Hi, its hard to say but sounds like something not right with your main jets. Are you sure all galleries inside the carby were clear? Also ,check the fuel needle valves as they might be sticky and not allowing enough fuel into the bowls. Could also be something wrong with your fuel tap

@benray6831

Жыл бұрын

Yeah I checked and blew out every crevice, the needle valves not sticking neither are the floats. I was told maybe the carbs aren’t in sync or maybe the floats are to high or low. I have the floats set to 17.5 and it has the original jets with pods. When I first got it, it didn’t have any air filters at all and it ran better then it does now. It would bog at the end of every gear. That’s why I cleaned the carbs.

@benray6831

Жыл бұрын

I also bought a new petcock thinking maybe that was it but it’s still doing it.

@Mezzmoengineering

Жыл бұрын

@@benray6831 If you have pods, check the end of the pod is not blocking the air intake hole at the end of the carby. This can be an issue with some pod types

What size are the holes on the sliding diaphragm?

@Mezzmoengineering

4 ай бұрын

Hi mate, its about 2.5mm but was with a drill supplied in the kit which is specific to my engine setup

hello friend, where did you get all the new parts for the xj700? 

@Mezzmoengineering

3 жыл бұрын

Hi Mate, some parts direct from my Yamaha dealer and most on eBay or other internet searches. Takes time and can be expensive but I managed to find what I needed

Hello! Can you write me the exact type of kilometer clock?

@Mezzmoengineering

2 жыл бұрын

Hi, I'm not sure what you mean?

@peterk4141

2 жыл бұрын

@@Mezzmoengineering The odometer

Hello, how are you? My name is Sajid and I would like to get a job. I am also a motorcycle mechanic. Can I work with you in the workshop. Can I do that?

@Mezzmoengineering

3 жыл бұрын

Hi Sajid, thanks for your interest. At this stage this is a hobby for me and work I do in just my spare time.

@sajjadaluqape6183

3 жыл бұрын

@@Mezzmoengineering ok thank very much

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