Yamaha XJ650 Part 38 It's finished!

[@TheVictorFour]

Dipped in and out of your videos on this. Used to Despatch 3/4 XJ650s many years ago, wonderful bike, lovely sound, reliable, great engine. I'm not a big fan of customising great designs, but must say your videos are really good and the amount of work you have put in is incredible, huge respect for your ability and the style of this one, brilliant job pal!

[@Mezzmoengineering]

Thanks mate

[@peterroda4181]

Really nice job. Well done!

[@paulbull3765]

Well, 5 months later here I am again. Last night I finally started a ground up restoration of a 1980 XJ650. This series has been fantastic to watch and very encouraging. Thanks for sharing Mezz, really appreciate you taking the time mate. I look forward to seeing you out on the road. 👍🏻🇦🇺

[@Mezzmoengineering]

Thanks Paul, I hope to get it out on the road very soon. Just a bit cold and wet now

[@leekendrick8076]

Great series of videos. I'm also restoring a 1980 650 Seca. The information provided has been really helpful. Thanks for taking the time to post the video's. :)

[@Mezzmoengineering]

Thanks Lee

[@JBroezel]

Super nice outcome of the project, all thumbs up! I love the fusion of the oldschool mechanic part with the modern electric part.

[@Mezzmoengineering]

Thank you very much!

[@Filip_Bubanja]

A lot of efort, money, time and love is spent on this bike. Enjoy it sir, I salute you!

[@Mezzmoengineering]

Thanks a ton

[@mr.motormaster9881]

Im so exited rebuilding my 1981 MAXIM 650

[@azrnich]

I have the opportunity to buy a xj650 from my grandma's neighbor so I was looking up info and found this series today, amazing outcome and an insane amount of info in your videos, I can't wait to restomod my own

[@PeterAndersons]

The fabrication and paint is brilliant, so often custom bikes look cobbled together... particularly with the eBay accessories (and seats) that never seem to fit properly. Your work is seamless, great work mate!!

[@Mezzmoengineering]

Thanks Peter! Appreciate your feedback

[@paulbull3765]

You did an amazing job on this bike mate, your videography and detailed information along the way was fantastic. Last night I got my hands on a 1980 XJ650 which I plan to restore or cafe.... I’m based on the Sunshine Coast in Qld. Thanks again bloke, really enjoyed this series 🇦🇺👍

[@Mezzmoengineering]

Thanks Paul, much appreciated!

[@biscuitdesigner7836]

Brilliant.

[@Mezzmoengineering]

Thanks mate

[@rodslogic4350]

Great looking bike. I enjoyed following the build so much it is a shame that is finished 👍

[@Mezzmoengineering]

Thanks mate. Well the next project has started so hoping it will be just as enjoyable...

[@ridethroughlifertl]

I discovered your series a week ago and just finished the whole thing. Then it hit me that you just uploaded this two days ago. What luck! I didn't have to wait. Haha

[@Mezzmoengineering]

LOL, perfect timing! Cheers

[@mjoelnir58]

Nice work, looks awesome,always loved those enormous headlight on my 650 back in the days,fits perfect,have fun!

[@Mezzmoengineering]

Thanks mate. Agree the huge light seems to work...

[@shawnmrfixitlee6478]

Great job , That turned out SWEET ! Best part is you built it yourself . You know how it was put together and You know it was top quality .. ENJOYED !!

[@Mezzmoengineering]

Thanks mate. Agree, nothing better than enjoying things you build and create with your own hands.

[@jeremyubrien2955]

Thanks for sharing the build. Great job. Love the paintwork. I have learned a lot from watching this series for my XJ build. Cheers.

[@Mezzmoengineering]

Thanks Jeremy, glad its helped you. If it gets you out in your shed building then I've done my job!

[@MultiDavycrocket]

I've had a xj650 for the past 3 years that ive been slowly learning to fix, when I bought it I was told it just needed a new battery, gas and tabs and itd be good as new. Unfortunately I found that the carbs were completely plugged with old gas and that the entire wiring harness was shit. I used your vids as help and I'm about to throw the carbs in and hope it fires over. Fingers crossed!

[@Mezzmoengineering]

Good luck, I'm happy my videos have helped you

[@jerryking1434]

Did you get it running ..???

[@MultiDavycrocket]

Not yet, been having to put it on the back burner because of family issues, all that I have left is to finish wiring in a new fuse box and I should be good to go

[@tx3steiny]

Great job mate! She’s come together very well. A credit to your thought and skill with the build 👍🏽👌🏽

[@Mezzmoengineering]

Thanks mate, feels like the effort was worth it

[@randysrestoration]

Sounds fantastic!

[@johnnymitchell4698]

Very nice. I have an 82 and an 83 CJ750. I have customized the 82 and the 83 is stock.

[@Mezzmoengineering]

Nice one, hope my videos have been helpful

[@sparklysparks77]

Great output, my friend! This bike is gorgeous. Didn't you just miss the Yamaha logo on the tank

[@Mezzmoengineering]

Hi mate, funny you say that. Finding brand new OEM logos took me a long time. Weather getting nice now in Australia, so next video those logos will be on, together with the first proper ride

[@1966johnnywayne]

Amazing job you've done.

[@Mezzmoengineering]

Thanks mate

[@stevec-b6214]

a tour de force, hearty congratulations!

[@jimmyguenza3767]

Hey man i am speechless ! Nice job dude really love the bike and i know you do too ! Just a really a mechanical masterpiece ! Thanks for sharing it all with us . Best ive seen on youtube as far as craftsmanship goes you are one of the best for sure mate ! Take care Jammin Jimmy

[@Mezzmoengineering]

Thanks Jimmy. now tell me your gonna get out in your shed and start building something..Happy to provide remote support...

[@chascoates4781]

Brilliant job. Well done.

[@Mezzmoengineering]

Many thanks!

[@UnDerDog-t7v]

Great job mate. Nothing like hitting neutral to get the revs going.

[@Mezzmoengineering]

Thanks Mark, yep getting into 2nd is a bit different to my current bike. I need to get used to hitting 2nd a bit harder, funny the only time it happened in my short test ride so far was on video.

[@markssmallengines3542]

That is a work of art, well done on this build love it 😍👍

[@Mezzmoengineering]

Thank you so much 😁

[@leudyf]

Big Respect 🫡

[@dawnsabin-simpson8938]

That's a ten dude. Nice one.

[@Mezzmoengineering]

Thanks Dawn

[@davidmcconville6919]

Nice job mate and a great build series. Thanks

[@Mezzmoengineering]

Thanks mate, hope its given you a few ideas and that it gets you building something soon

[@davidmcconville6919]

Mezzmo Engineering I’ve already completed and xj650 cafe build but always like looking at what others are doing

[@mattcrick2156]

Looks absolutely awesome 😎 well done mate

[@Mezzmoengineering]

Thank you! Cheers!

[@sisterstate7216]

Gorgeous!!!

[@Mezzmoengineering]

Thanks Sister!

[@tonyb5884]

Lovely outcome, very nice bike..bet you're well chuffed...it even goes grass trackin'..lol

[@Mezzmoengineering]

Thanks Tony, yep very happy with this build. Can't wait to get out cruising

[@lwoodt1]

Another, Well Done, to you sir.

[@Mezzmoengineering]

Thank you kindly!

[@3dfossils]

loved it . all of it.

[@Mezzmoengineering]

Thanks mate

[@leekendrick8076]

Hi, I've been following this rebuild and I'm very impressed with the detail you provide. I'm currently re building a 1980 XJ650 Seca here in Geelong, Vic. Where can I obtain a set of 1st oversize pistons and rings in Oz? Infact, gaskets too if possible. Prefer to shop on home soil. Thanks for any info :)

[@Mezzmoengineering]

Hi Lee, I found my gasket set on ebay. There's not much here in Auz so most likely will be overseas. Not sure where to find oversize pistons, you could try your local Yamaha dealer or Ebay is also a could source for parts

[@Mezzmoengineering]

Not first size but will work, check these predatormotorsport.co.uk/yamaha-xj650-80-83-piston-kit-set-of-x4-std-to-1-00-oversize-japan/

[@markbranton1240]

Where did you get the RFID ignition lock? I would like to get them for my bikes. Thanks and love the end result!

[@Mezzmoengineering]

Thanks mate. The RFID is an option with the M Unit from Motogadget

[@mishky_2958]

I couldn’t wait for this video!!

[@Mezzmoengineering]

Thanks mate, glad you like it

[@MattysWorkshop]

Gday, absolute credit to you there, looks bloody awesome, it doesn’t look over done, yes you can see modification but they suit the bike, love it, by the way, where does the name Mezzmo come from, sorry if I’m being nosey mate, great video and thanks for sharing, take care Matty

[@Mezzmoengineering]

Thanks Matty. Mezzmo was a nickname I had in my school days and its seems to have stuck...

[@germanzambrana663]

Esta súper bien, las as dejado preciosa Si tubiera dinero te la compraba

[@Mezzmoengineering]

Thanks mate, glad you like it! I see your words using translator....

[@seanboxer1521]

Beautiful

[@Mezzmoengineering]

Thank you

[@quadflopper1012]

what are the side covers off of?? did you get rid of the popping below 4k, have you had any trouble with slide flutter between 3.5 and 4K? it's taken me almost a year to figure why these bikes have those problems, unlike other CV carbs hitachi's don't have any compensators like accelerator pumps and other operating diaphragms, yamaha designed these bike to use the intake restriction from the airbox and back pressure from the exhaust restriction to control the low end mixture, opening up the exhaust and intake plays havoc on mixture control especially between 3.5 and 4k rpm's which is the transition point between the pilot and main jets circuits...

[@Mezzmoengineering]

Hi Mate, still haven't gone on a first ride. Carby tuning still needs to be sorted. I plan to start this soon, Looks like it might be a bit of trial and error. I'm certainly not happy with it yet and its a bit tricky given all the mods I've done...

[@totallmayhem7423]

looks good, but the stock headlight looks horrible on it. I restored one myself but I modified the bracket to lower and tuck in better. made a huge difference. I think yourse would look better with a smaller, more modern headlight with leds though.

[@Mezzmoengineering]

At this stage I don't mind the headlight as is. Still need to tune and get it running properly. Will no doubt make improvements over time. Am going to put some tank emblems on soon, just need to find some new ones.

[@Baldybrew]

I see even with the bike fully custom and gone through, it still struggles with that 2nd gear. I talked to an old Yammie guy who told me that 2nd on these bikes is just so damn fickle. My XJ650 Maxim does the same thing. You basically have to quick shift or do a hybrid of a standard shift from 1st or you will hit neutral every time. Really struggled with that while learning on this bike.

[@Mezzmoengineering]

Hi Mate, its funny that was the first time I missed 2nd. It does feel different to the bike I've been riding but I think its just a matter of getting used to pushing a bit harder into 2nd, Only time it happened was on video, LOL

[@titustoscano1330]

So im looking at buying a 1983 yamaha xj650 is there any thing i should look for or ask about it?

[@Mezzmoengineering]

They are pretty solid bikes. Just look at general condition etc. Run the engine and listen for a rattle. The biggest problem with these is stretched primary chains. When they wear you will hear a rattle at idle.

[@zacharykott9361]

I’m working on a 700 now and only have 2 cylinders firing so I’ve got my work cut out for me 🤦🏼‍♂️

[@Mezzmoengineering]

Good luck with it

[@r779projects7]

Love the bike, was hoping you could tell me as I can find nothing but the rings online, where I would get this 820cc big bore kit? Any help would be greatly appreciated thank you

[@Mezzmoengineering]

Hi Mate, I got the big bore kit from a private seller. Not sure where these are generally sold or if it was old stock

[@r779projects7]

@@Mezzmoengineering thanks man it's OK I can go +1 over i won't be as happy. I have read about a yoshimura stage 5 cam for the 820 kit, don't know the lobe specs but the xj700 non x cams are around a mil bigger on exhaust and intake,I am hoping to have some success, haven't heard of anyone succeeding or failing with these. Stay safe!

[@Mezzmoengineering]

@@r779projects7 Good luck with your build

[@djlancer88]

What is the whistle sound coming from?

[@Mezzmoengineering]

Hi mate, probably the camera as I didn't have a wind cover for it. Check my latest video for a better idea of the sound of the bike

[@Disembodied]

random question.. what fuel do you put in it? 2:27

[@Mezzmoengineering]

Hi mate, I use standard unleaded. 91 Octane

[@quadflopper1012]

question: do you know if the barrels and head from an 82 yics engine can be used on the 80 non yics engine???

[@Mezzmoengineering]

Its does, check my engine build videos on this project

[@Oliver_stick]

How did you learn how to do this stuff?

[@Mezzmoengineering]

Hi Mate, well I started my career as a Fitter and Turner. Then for a long time after studying I've been a mechanical engineer. I have always pushed the boundaries and tried things. Some things like Spray painting, body work etc I've learnt myself and engineering things my job have given me lots of knowledge. My advice is to just try things, a few mistakes and you learn a lot...KZbin is your friend when trying to learn these days too

[@РусланЛитвин-с3о]

Дуже гарна робота, ви молодеуь. Привіт з України. UA.

[@Mezzmoengineering]

Thanks Ukraine, from Down under Australia

[@mr.motormaster9881]

Im so exited rebuilding my 1981 MAXIM 650