Powerful Turbo XJ650 Build - Satisfying Custom Motorcycle Build

Welcome everyone!
In this video, we turn an old XJ650 into a fire breathing cafe racer! After much tinkering with the jetting, we switched back to the HSR42 and it now runs mint. The needle taper on the HSR42 is much to lean for a 4 cylinder; on Patreon, I made a video explaining step-by-step how I altered the needle taper so that this bike transitions smoothly from the needle to the main circuit.
There's now over 11 exclusive How-To videos on our Patreon, our most popular video is "How-to Turbocharge your Carbureted Motorcycle From Scratch; Draw-thru, Blow-thru; a Complete Guide". In this video, I break down everything, right down to the nitty gritty details like Fuel Pressure Regulator Selection, Fuel Pump Selection, Pitot tubes, how to hook everything up, basic troubleshooting and more!
www.patreon.com/DoctorMotorcycle
www.doctor-motorcycle.com
instagram - doctormotorcycle_az
This is my 6th turbo build and my 5th draw-thru build. The reason I like draw-thru setups is the simplicity of the design; even though you give up some driveability and fuel economy, in my mind it's a worthy trade-off. I had a float stick on one of my blow-through builds and it flooded the top end of the motor and left me stranded; I was so mad about that I tore off the turbo setup and sold the bike, lol.
Check out our website for more information.

[@DoctorMotorcycle]

If you Enjoyed this build, check out the latest Twin Turbo Scrambler Build - kzbin.info/www/bejne/r3mpnJlpgNWWicU

[@michaelbrinks8089]

How much did all the turbo conversion parts for the build cost? The xj700 Maxim is similar to the 650, so I would think the parts & numbers to get it dialed in, would also be similar.

[@zatluangitluang4876]

Oo ko Ok9looo

[@greenambles]

Seriously, this is the stuff of sorcery and alchemy! I have done basic and intermediate mechanics courses that enjoyable and useful for basic maintenance and at least give me the insight that this here is on another level of Jedi style skill, experience and knowledge. It should be obvious to anyone that there so much more that went in to this build than just in the film - thanks so much for sharing. If I had one constructive comment it would be that I wish you had taken a longer walk around the final finished bike whilst it ticking over so I could get a better look. Whoever gets that bike is very fortunate.

[@armandodiaz5023]

Hola alguien podría ayudarme por favor, tengo una Yamaha xj 650 modelo 82, me podrían decir a cuántos psi lleva de precion las barras de la suspensión delantera?? gracias de antemano...

[@AbakarMainaMadji]

merci tu es forte

[@wakemaster1111]

These videos are unrivaled. Nobody else puts so much detail into such short videos! Your skills with motorcycles are incredible.

[@DoctorMotorcycle]

Thanks! It's weird to think a 35 minute video is considered short, I'll keep that in mind in the next build video. Just don't like putting in excessively long cuts or showing the same thing over and over.

[@sinisterstrickland]

I got a 1980 xj650 a year ago, and I’m still working on it since I’m in college. It’s a fun bike and an interesting one at that. The fact that you built something so sick inspires me. Much love bro

[@DoctorMotorcycle]

Thanks, I really like the XJ's.

[@laesperanza5408]

Near as I can tell, you haven't sent SQUAT to any other shop! Appreciate that much because I live at the end of the road in the 3rd world and make everything from scratch: steel, wood, concrete, sheetmetal, plastic, earth . . . .whatever. Absolutely LOVE to see you cutting, welding, tapping and fabricating it all. Good work! Keep it up!

[@IGSpawns]

She's a beast! Immaculate build

[@bigcconservativeguy2534]

Yup, I was totally impressed by your exhaust right up until I saw your custom intake for the screw and then I wasn't impressd anymore. I was f'ing blown out of my boots! You are talented my new friend!

[@cristianvigliarolo7597]

He know everything and can do whatever he wants... it's a intelligence out of ordinary

[@davidhaworth7152]

Soon as I saw the exhaust placement I was hoping you’d add a 45. So good. Well done.

[@Hotrob_J]

6:57 oh god I felt that all the way up to my bicep

[@brendanmartin4489]

Right. That shock then the pulsating pain.

[@NateDsCustoms]

RIP to docs thumb

[@datboi-ui9ci]

I knew someone would say something😂

[@pchoice0]

영혼의 바이크를 만드시다니!~! 존경합니다.

[@tmpsg]

Excellent build! I could hear the turbo sounds on that one loud and clear. Music to my ears.

[@DoctorMotorcycle]

It's hit and miss with the draw-thru setups; many times you can't hear the turbo, and if you do, it's very faint and only at certain RPMs. This bike is on the more faint side. The bigger CC twin cylinders (like they harley + the virago) whistle pretty loud at all RPM's. Always thought that was odd. Could be the small carb's on the smaller engine's and small air filter dampening the sound too. Cheers!

[@djlancer88]

borderline asmr lol. I own a 85 xj700x. Its been semi restored/rebuilt so defititenly cant chop it up but would love to do this one day. Fun to watch thanks for uploading. That first ride was probably a blast

[@brianpatten]

Such a great build, you have incredible talent! Thanks for your hard work and the wonderful video!

[@DoctorMotorcycle]

Thanks Brian!

[@mumm-ramon198]

I love how you can mount turbos, you make it looks so easy; I hope one day get a DIY turbo bike.

[@DF4Trap]

Great video, love the work, it was a real pleasure to watch. Thanks for sharing.

[@markt372]

Excellent re-hash of a Despatcher's favourite when I was still on the plot.!.

[@Jetbaronnie]

Une moto de légende le travaille aussi , bravo .👏

[@rayzimmerman6740]

Thanks for leaving the hammer thumb fiasco in... nice human touch. Always was, and will continue to be envious of people who have such skill and dexterity... Subscribed🙏

[@PLANET_BRUNO]

This masterpiece belongs in a museum 🎨

[@georgebarnes8163]

Excellent job, better than Yamahas own 650 turbo which was a total failure.

[@Anthony9592]

Incredible mechanic and sculptor.. Truly a doctor of motorcycles...

[@DoctorMotorcycle]

Thanks Anthony! Check out the latest upload if you enjoyed this video.

[@rowanbrecknell4021]

I knew I didn't need a Porsche when I rode my first bike.

[@nobbytart27]

Very engaging and addictive build, i did my own turbo conversion on a 2JZ GTE some years back so this was like everything in minature. However a few shop practices i would have been crucified for as an apprentice, fasten the damm vice down 😁. Use clamps to hold sheet down particularly with hole saws, if they bite its chopping your hand off. Hands getting way to close to cutting tools. At one stage it looked like you were using grinding wheels on ally, this can cause the blade to clog, overheat and shatter. And leave the tape for plumbing not oil fittings, use Loctite. On the flip side a good range of skills on show and a very nice looking bike (except the exhaust popping through the seat - what was someone thinking 😁) Great video

[@LondonSteveLee]

Nice! Loved the judicious use of the big orange hammer - made my day!

[@user-lc4nr6ip2y]

You have a incredible talent brother..

[@ifnotnowwhen6914]

Looks like you know what you're doing. I have an unhealthy obsession for the 83-84 Yamaha XJ650L Seca Turbos. Heavy, unreliable (for a Yamaha anyway), and love it or hate it styling, but very fun and comfortable. I know this was a Maxim XJ650 in it's previous life, but seeing xj650 turbo caught my eye and I had to check in. Thanks for bringing up some Yamaha Turbo memories.

[@tomkitchen2764]

A competent, all round mechanic.

[@patrickroberts7847]

Been watching your videos since you had 1k subscribers. I feel like you’ve always gone the cheap route and do some sketchy stuff on your builds, and I get that as a mechanic myself. It’s not always easy getting the best of the best parts and tools. I really liked this build tho. Love how you got the tank to look that good with rattle cans. And the exhaust is phenomenal. This bike looks so fun to ride and super fast for what is and it sounds REALLY good. Great build sir.

[@DoctorMotorcycle]

Every Mechanic/Fabricator has done a repair that they wouldn't want to represent their work, and that they definitely wouldn't record and put on the internet. Many of the mistakes I made were out of just being inexperienced, or having such a tight budget I had no choice but to do something ghetto. Like welding exhaust pipe with a flux core welder. Other than working on stuff and doing basic repairs to dirtbikes/cars, I wasn't a motorcycle mechanic/facbricator prior to this channel; I was a CNC machinist. We've still just barely scratched the surface. This is still the early days of my work. You ain't seen nuthin yet!

[@fuselpeter5393]

Now i need someone like you to turbocharge my old Transalp. :D

[@laesperanza5408]

EXCELLENT narrative-free presentation. Also see you have included just enough tech-text to help us deep into it and hoping to copy some techniques.

[@DoctorMotorcycle]

Glad it was helpful!

[@bigcconservativeguy2534]

That exhaust was a work of art. Nicely done. New sub here now for certain!

[@jeffrey1915]

Very nice....I just bought an 82 Yamaha seca Turbo...my buddy and I are doing a naked street fighter turbo....you definitely have us some ideas....I especially like the way you put your front fork tubes together.. Among other thing...

[@neoquest2012]

About time someone made an XJ 600 worthy of existence 😂 top work man! But I could think of easier ways to get 100 pony’s 😎😉

[@bobfromlogistics]

I've been toying with the idea of throwing a turbo on my 2005 Kawasaki Vulcan Mean Streak. 1600CC engine. Might be a bit fun.

[@bladerunner8832]

Wow great skills! I wouldn't even know where to start. 👍

[@MacJunior696]

Jesus Christ that bike is SWEEEET and no slouch

[@rowanbrecknell4021]

My Triumph is happy at the ton and it has more.

[@asdfghjklqwerty12]

9:40 that's a clean cut

[@romesyoutubechannel5356]

Great work. I have a friend who did the same to a XJ 750.

[@ballerblocks]

Great video, very achievable build for most people.

[@kevinlewis9151]

I prefer leather seats, but bro your a master.

[@PiratePrincessYuki]

Cafe racer, nice.

[@devinpowers4368]

You need to build another one! I love café style bikes. I had an 883 café but hit some loose sand on an old road. Keep the rubber side down, man.

[@rivaldybastara-oi5rf]

Great job

[@ericavez9208]

Incroyable, top !!!

[@auto3030jp]

この発想とアイデア、素晴らしいクリエイターさんです！それを支える技術もまた素晴らしい！

[@juliodifelippo]

Wow what a bike! sounds and goes awesome. Happy new year!

[@teamgonzo9289]

"EXCELLENT"!!!!!! 👍

[@thonmaralli5045]

WoW! I envy your work and talent. I could just dream of having one of those classics. Great job!

[@DoctorMotorcycle]

Thanks!

[@teemuronkainen]

This was cool video! Love that 2step

[@jasonadams5187]

Awesome video and awesome content can’t wait for the next video Thank’s

[@ljaysperspective1775]

Apparently you've done this before, enjoyed the vid thx 👍

[@Turbofab]

Nice to see a video from start to finish in one video, I've got a virago so will be nice to see what you do with yours

[@nextdevil71]

Sei un capo !!

[@andrewgrace4410]

Dr in the house! Nice build

[@berni750]

Genial! Unglaubliche Handwerkskunst

[@Cool5380]

pls enjoy it when the T kicks in a corner rofl! Long strait roads my honda did well corners was allways a gamble and wow I still remeber the T kick in mid first corner it was intence!

[@hermannhoffmann4021]

Man... This is a beast... And I love the exhaust. Go on with these kind of projects!

[@DoctorMotorcycle]

Thanks! Twin Turbo Mad Max Virago is next, stay tuned!

[@dalebirbeck5344]

Awesome little beastie!!! Great work

[@dzrotary]

Love the build !!! My wife with shred me if i attempt that 😅🤪

[@vondenballs]

That bike is cool.

[@technomickdocumentalist2495]

Very nice job there chief, I was particularly surprised with how accurate you were remodeling the tank and seat, top job that mate, and the exhaust sounded ace too. 😎

[@reisakashiya]

That exhaust placement has me chuckling ngl

[@m.hildanhildan41]

Awesome

[@MotoMango]

Absolute master piece my dude!

[@BareBonesMotorcycles]

Another great video. Loved this whole build. Makes me want to get back out and finish mine, just need to get my workshop back first lol👍👍

[@DoctorMotorcycle]

Thanks, cheers!

[@marchuk1488]

its wonderful

[@edgarbthurson1256]

I was about getting a heart attack at times you started drilling into the carbs, and various other parts where "holes were not supposed to be" :) This conversion is really nice and close to my heart, since the XJ650 was my first ever bike...

[@lhawoekcreator]

Thank, s for information. I like its

[@llegendaryduckk9876]

Well done

[@thespaniard977]

i would appreciate it so much if u had a tool list of everything you used in this video it would help so much

[@RainerWiset]

Wow good work

[@nickmassey9104]

Well done. Just eventually watched the video Christmas got in the way 😆

[@DoctorMotorcycle]

Haha, understandable Nick. Twin Turbo Mad Max Virago is next, see you soon!

[@BoBBaB0oN]

great build

[@jonathanbuck6526]

.....crazy man

[@luizsantos3929]

Lovely Job... Congratulation..... Happy New Year to.....

[@fisshuman]

7:00 ahh I can feel the pain brother.

[@aaronromerovazquez5284]

Once again bro, I really appreciate your videos I learn so much on them you have a great talent! Happy new year!!

[@hancholito4478]

That has to be one of the few videos where i actually thought : That's totally doable with what i have home.

[@DoctorMotorcycle]

For Sale; XJ650 Cafe Racer Project; It's torn down to the frame rn have a ton of new parts, just don't have the time 😉

[@deanthree5]

Looks fun and scary just what the Doctor ordered...LOL👍👍❤

[@adangonzalez2856]

Good work

[@KHAYAALLNAINAMEIN]

Best the greatest

[@user-jx5bl2hy8r]

6:58 this is genius

[@manosmic]

great work !!! but please buy a proper allen set and replace that wago connector with an automotive one

[@Jason-ms4gb]

Adjust your torch angle to a 90 degree angle to your work, try upping the amps to 65, move a bit faster. Also suggest using ER316L SS filler rod, makes the welds look like you have 20+ years of TIG experience.

[@DoctorMotorcycle]

Noted

[@Dave30867]

Nice Work 😁👍

[@dccb2years]

Love it, Doc

[@donaldhenke2750]

i like the smashed finger part. haha

[@dingos1029]

Świetna robota 👏 Jak byś dorzucił tłumaczenie było by fajnie .

[@jeffreykrout3034]

Wow so cool !

[@vincelev362]

Sacré travail !!! Bravo !

[@samwrt4177]

Nice Job 👌

[@RtepPWR]

Looks awesome.

[@drericshannonparr]

It’s all in the spray.

[@popcosmin4935]

XJ 900 cafe Racer , episodul 1

[@brickteczbricktecz5512]

yes....thank you for that gift...

[@DoctorMotorcycle]

Any time!

[@collombthierry7193]

Unbelievable ! I have 3 stupid questions ! How long it took you from day one to the end in days or hours ? Where did you learn all that ? Did you work in a motorbike shop for years or did you learn everything by reading, trying and putting your hands into it ? what is your background ? Thanks for showing us how you do ! it's inspire me a lot ! Greetings from Switzerland !

[@dawnsabin-simpson8938]

Ha ha ha...nice one ...that looked like fun to ride at the end. Thanks.

[@DoctorMotorcycle]

It's a blast, one of my favorite builds for sure.

[@atila333]

irado !

[@tiwsshoot]

loveeee it.... dream motorcycle 🥰😍