My '82 XJ750 "Project Shadow Warrior"

I don't know, I haven't used it yet? It might be a while. Doing a turbo on the bike.

 

It's official!! This is going to be a microsquirt Turbo bike build now! I just purchased today a BorgWarner S1BG Turbo (# 313296). I talked to the engineers at Borgwarner and I couldn't of found better guys to talk to. They know there stuff and really friendly. They really went out of there way to help me. I bought the turbo from Southeast Power Systems. There rep there, Mike Franky, was awesome doing business with. He has a lot of experience with turbo bikes and knew how to get the job done. The turbo was not the easyiest to find, as there are none currently in the usa. They did a lot of communicating and found one at there plant in Kibo, Germany. I will hopefully get it in about 4-5 weeks, maybe sooner.

TURBO BIKE, GAME ON!!!!!

 

yeehaw

 

skylrk62 your XJ is like a fantasy bike!

Let the Turbo begins!

good luck and keep us posted mate!!!! pic and pics and a lot of pics please!!!!

kinen1

 

I received some goodies for the turbo mod!! XJ700 "X" clutch assembly, XJ650 Turbo oil pan & oil pump.

 

sweeet!

you may also want the turbo oil feed check valve and fitting. I looked on Ebay and there was nothing there currently...

Also, what are you doing about a knock sensor? When i convert to microsquirt i plan to interface the stock 650 turbo knock sensor into it if possible...

 

IT HAS ARRIVED!!

I finally got my turbo in from Germany today! I did a mock up with a 2 1/4" intercooler. It looks like it will fit like a glove in there. It's nice and compact. I'm thinking of full exhaust instead of dump pipes. I have enough room to make a nice 90 bend down and shoot out the back. I haven't made up my mind yet on that?

 

Great stuff - what an amazing transformation! Please keep us updated!

 

will the front fender hit the intercooler under full compression?

 

I finally got all the parts and supplies for the turbo build. I have the bike up on the stand and started the fabrication.

 

Also really worried about the travel on the front wheel and the cooler/turbo. Assuming you've double checked the clearance?

 

It's tight. I might need to cut the rear side of the front fender to gain clearance for the intercooler. The turbo is good on the clearance. I moved the oil cooler under the bike towards the rear wheel.

 

Getting closer

 

Awesome, I found this thread by chance when I first joined the board and I am mighty impressed.
Out of curiosity, are you going to refinish the rest of the engine? From the photos, its looks like the cylinder bank has oil stains on it, and it'd be a shame to have the stainless plumbing for the turbo sitting next to a dirty engine.

 

I won't speak for skylrk62 as I don't know his plans (for all I know he's a "go > show" guy like I am). What I do know is that cosmetics are the very last thing that get done (if the builder knows how to do the job right).

 

Oh, I am a function before form guy myself, but I have see too many "rat" bike-wannabes that are built by design to look like they got pulled out of a rock quarry. If the entire bike looks well worn and used, cool, but putting new stainless plumbing on top of an oily mess looks a bit shabby. IMHO, of course.

 

No need to worry about the bike's looks. This thing is going have a showroom finish. I have to get all the engineering done first before I touch this beast with paint. I'll get everything working right, then break it all down and paint it. I promise, it won't disappoint you.

 

Yeah, it won't if you know what's good for you! :lol:

Seriously, this project is inspirational, I am amazed at what you've done so far. I am trying to go pick up an XJ700 today and want to go somewhere along the lines of the old TZ750 that Kenny Roberts raced, so this has a lot of relevant mods that may cross over.

 

Thank you. Sometimes, I feel like this project has turned into a monster that feeds on itself and I'm in way over my head. But, I think the end result will be something special and that's worth it to me. I'm glad To be able to inspire others like so many have inspired me. I'd love to see new innovation come from this site.

 

What is that small bottom fairing from?

 

XJ900F, as mentioned on page 6.

 

Ahhhh, I'm "that guy!" Thanks though!

 

So after looking around I only found one on ebay and it was overseas..... anyone stateside have an extra one of those belly pan fairings they want to get rid of?

 

I bought mine on Ebay from Poland. They never offered the XJ900F in North America from my understanding. Finding one here stateside could be a challenge.

 

This bike is amazing... That is all.

 

I say,
Fantastic build! Awesome bike!

 

I know it's been a while, but perfection takes time. Ha! The turbo is starting to take shape. Still got a ways to go. I'll keep you guys updated as things progress.

 

Modifying the tank to hide the cold air intake tube. Oil cooler was relocated in front of rear wheel.






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Is the intake going to be hidden inside of the tank? It would be more work, and cost you some fuel volume, but it would look amazing.

 

I cut a channel on bottom right side of the fuel tank so I didn't have to wrap around the engine and go over top. It will still show, but it will look more compact. My goal is to have a "factory look" fit, if possible.

 

Got the Intercooler fabricated and mounted. Unfortunately, I'm going to have to custom design a new set of triple trees. There is only 2 1/2" of travel before the fender hits the intercooler. The suspension travel is just under 5".

 

Incredible transformation!! This HAD to happen with the purchase of those rear shocks way back on the first page.

I like!

 

Wow I just went through the whole thread!

I wanna work with you!

 

Sweet build. I wish there were more like it on here.

 

This thing gets cooler every day

 

Thanks guys for the comments! I've been finishing up the details for the turbo. Headers are done. Intercooler done. I'm on the Airbox now.

 

I've been messing around with photoshop again and did a color combo. I'm thinking a flat metallic ferrari red with black combo. What do you guys think?

 

That red/black combo looks pretty sweet, man. I really like what you've done with your bike. It's an incredibly ambitious build, and it's coming out great!

 

Looks mean. 8)

 

i like the black. but id op for grey/silver something. i like monochromatic schemes.

great work on everything. i love following your project.

 

A Major step just completed! The turbo header-intercooler-airbox fabrication is set. Now the triple tree redesign & a million small details to finish. The header & exhaust is all 321 stainless. I'm in the process of relocating down to the Atlanta Area, bye Detroit!

 

Ooo that bike is going to be amazing on those North Georgia roads, good luck with the move.

 

Good lord that looks absolutely sick...

 

what are you going to do about the triple tree?
won't lowering the tree mounts down raise the bike back up, affecting handling?

Also, we need to research a stronger set of springs for the 6 spring clutch. Currently, the EBC ones i am running are starting to slip out around 12-15 psi, with the bike wanting to lift the tire in 3rd gear. I am unsure of the rate of these sprigns or even the stock ones for that matter, or where a suitable replacement would be found

 

"Need Help!"

I was in the process of doing the six spring clutch swap, when putting in the primary driven gear, the spacer one and cylinder 10 bearing got A little jammed. I figured this was normal because it looked like a tight fit. So I took a piece of wood and lightly tapped on the spacer and it went right into place. I noticed right after that it wasn't turning correctly. There's a lot of friction. I think what happened was the primary driven gear was not aligned with the teeth? Therefore, not being perfectly center on the shaft. So I try to remove the spacer with the 2 6mm bolts, But it was jammed. I fabricated A gear puller to try to pull out the spacer. The first attempt I use A two slim of a press Point on the shaft and seem to push in some kind of seal on the primary driven gear. I felt it push in and now it's father inward in the shaft and maybe sideways? The second attempt I tried to use a larger centerpoint on the pull shaft and no matter how hard I cranked, it would not budge. This thing is really stuck in there. Has anyone ran into this problem before? any ideas? This is still the original parts too.

 

I solved my problem. The PRIMARY DRIVEN GEAR was getting cockeyed when using bearing puller. I whacked on the primary driven gear back into the engine and the bearing came right out. I inspected the bearings and the spacer and noticed some scoring from the binding. Luckley, I have a spare set. The XJ700 Clutch basket assembly is the same, so I'll install that in. I also swapped out the oil pump for the turbo pump with the correct chain and sprocket.

 

I want to keep the lines I have, so I'm going to have to come up with an offset that is close. Not really sure yet? If anything it would be lower in the front, which is not what I want, due to the ground clearance.

Our Clutch push rod is shared by the Yamaha Raptor ATV. Show I did a little digging and, even though the clutch is not the same, the style is. I found that, with a little engineering, a Lock up clutch could be adapted to the bike. You would need a spacer for the cover.

 

not sure why you needed a puller to get the primary gear off? mine came right off?


someone has done this raptor lockup clutch swap on the xs650 twins forum. they had to elongate the bolt holes for this to work, as well as modify the cover.


if you make a spacer for the cover, please make 2, i would need one also!

 

Awesome. Only word for it.

 

Are those non-folding foot pegs ?