What is it ?
 

Question , What motor is this ? :innocent: Steve L, try to hold off for now, I think you'll know.
http://imagizer.imageshack.us/v2/640...673/HhOhVZ.jpg

http://imagizer.imageshack.us/v2/640...743/mXEUCB.jpg

3AJ Or is it 2kf engine, 3aj cylinder and 2kf top?

No, thats not it, sort of, look close at all parts.

My guess is it`s a Yamaha xt 600

43f in the bottom then?

The bottom isn't even a bike motor, top is.

I did have it running for a short time this spring just to verify it would work but several things needed to be done before I'd put it together with good parts.


Edit, the bottom actually does have a European bike version of it though without reverse.

OK biting my fingers to not give it away...

Raptor bottom & XT600 top end.

Mezo.

That`s a hybrid, its a Raptor 660 bottom end with an XT600 top end.

Mezo.

"The bottom isn't even a bike motor" Well if it only moves forward it must have been for a jetski or old snowmobile.

Correct, Google "Raptor 660" its a quad bike :innocent:

https://encrypted-tbn3.gstatic.com/i...BGOBc90V31Kb1w

Mezo.

Ya and a liquid cooled one at that, which is why I put an old XT topend on it, no room for the radiators(or really a need for it). It is 101mm high comp Raptor piston and sleeve though rather than the 95mm XT. My one worry is the piston tapping one of the intake valves at higher rpms, I confirmed it doesn't at just above idle, but do to no head oiling at the time I couldn't rev it or run it for long before tearing apart to see how things were living. (I was hand pumping oil into the end of the cam as it was running.

:eek3: Not from a bike? :thumbdown:

Well the clue was a reverse gear. :cool4:

Mezo.

Yeah i didnt read that correct, but anyway it still a bike.

Ooops nearly gave away how i knew. LoL :oops2:

Mezo.

OK so i cheated a bit :innocent:

I remembered a post a year ago on my forum about this, so i searched "reverse gear" & found it right away. :smartass:

The Ténéré Forum • View topic - The XT projects begin

Mezo.

We don't call quads " bikes" so that's where I got that but I guess it could be one. Didn't know if Mezo would remember me starting the project. The motor if fairly easy to do(with a machine shop)just researching which parts "might" fit. I suspect it'll be a torque monster. Getting it to fit in an '86 XT frame, well, that's what has taken me so long and been pushing it off. I try to do a professional job. I'm making the backbone and head area the oil tank so I have room for a bigger battery and can go with a good AGM type also. Really hoping to use a 700Raptor EFI system on it. Will work fine if the 700's flywheel fits, it has the rpm sensor pads on it for the computer. More work.

Fun stuff :thumbup1: Is the cylinder leaning a bit forward, compared to the regular XT600 engine? Will this engine fit the bikes frame without modifications?

Ya, the cylinder has a few degree more lean but does just barely fit the frame but I have to tip it up a bit and cut the cross brace off up at the backbone. It'll get moved up an inch and a bit of gusseting to regain strength(like I said getting it to fit the frame is the pain). I was thinking of making 3/4" tubing cradle like the Honda XR/XL's have under the motor to tie the front down tube in with the frame back by the footpegs.

The motor will end up with a bit more oil in it because the back will be a few mm lower rather than flat.

What year is the motor? i read the 01`s had second gear issues.

Mezo.

It is an '01 with an '03 trans. It had the broken gear so it was cheap. had to wait a while to find a complete trans that wasn't ridiculously overpriced.

Funny thing was I owned an '01 Raptor put on over 6k miles on it, took it sand duning with full paddles a couple times, never an issue with the transmission. They broke because idiots slamming downshifts without using the clutch.

Oh what have I done now ? :innocent:

http://imagizer.imageshack.us/v2/640...912/YvdiWp.jpg


Since I already had another cylinder bored and sleeved for another 660 piston I already have, it seemed logical . I have 2 cams and a brand new timing chain so already half way there. Just need a frame, but which one? Am looking at a Honda or the E-start version with the oil tank already in the frame, it's being a pain to make one.