XR 650L question's

[Rman of 237]

[Thrasherg]

Looking good, can't wait to hear how it runs.. Do keep posting pics, I love living through other bikers!! It's much cheaper that way!!

Gary

[Irishcoffee]

Originally Posted by Thrasherg

Looking good, can't wait to hear how it runs.. Do keep posting pics, I love living through other bikers!! It's much cheaper that way!!

Gary

Nope, that ain't living, thats just watching!

[Thrasherg]

Originally Posted by Irishcoffee

Nope, that ain't living, thats just watching!

It's all I can afford right now!!

Just starting to ride the TAT, should leave me bankrupt for months to come..

Gary

[FDM]

Originally Posted by viper

Head back on.



New 10:1 High Compression Piston is top dead center.



New Hot Cam is in time with all lobes down. Exhaust valves adjusted to .20MM. Intake valves adjusted to .15MM as per Hot Cam specs.



Happy to say....Engine rebuild complete.

We are going to install the engine back into the XR650L this weekend. FDM has a new carb ordered from "XRs Only" that should be in next week. When we are done, we'll post a review of the performance and maybe some video.

That makes 2 of us for sure, Thanks again for all your help and hard work, at the rate I was going it would have been next year before I got it back on the road

[viper]

http://youtu.be/o52tuDvF45Y

http://youtu.be/o52tuDvF45Y

We put the engine back in last weekend. Got everything hooked back up during the week. Installed the new 41 MM Mikuni TM38-85 flat sided carb, new Moose handle bars, new throttle tube and cable and new grips. Primed the oil pump. I primed it prior to installation but when I turned the fly wheel to top dead center for valve adjustment, the pump unprimed itself. We had no oil at the upper banjo bolt while turning the bike over. We used a large syringe and injected oil through the 10MM check port until oil was at the bottom of the plug hole. We used a low 20psi air compression at the oil filler neck to help prime the pump while turning the bike over without the spark plug in. Oil shot out the upper banjo bolt after a few seconds. We turned it over without air compression oil continued to shoot out from the banjo bolt. The bike started up fairly easy. Ran well but valve clearance needed to be re-adjusted.

[jbird710]

Originally Posted by FDM

I’m still undecided about a carb but have been leaning toward's the carb XR’s only offers for the L mainly because it should bolt right up, one thing for sure it will be getting a pumper

I finally got around to installing the FCR on mine. I ended up buying another carb off of a CRF450R (40 mm) that came complete with throttle and cables. The original carb I bought turned out to be a 37mm even though it was advertised as a 40mm. The 40mm went right on almost exactly as the writeup therealbigman posted a link to. Only difference was the carb, throttle, and cables in the writeup were from a CRF250R and the 450R cables were too long. No matter how I routed them, they would bind when turning right. I used the stock XR650L cables and throttle which works perfect. I jetted just as the the writeup said; the bike started right up and runs great. It may be a little rich, I've still got a little tuning to do. I just had to change out the pilot (45 s) and main (170) jets ( had the right ones from other bike projects) - the needle was already the correct one and was already clipped on the 4th slot from the top.

The FCR is MUCH better than the Edelbrock I had on there. Power is much smoother when rolling on the throttle and just as strong (if not more). The Edelbrock doesn't have separate pilot and main jets which makes it impossible to tune for both top end and slower speeds - you can max out one or the other or compromise both. Either the Eddy or the FCR are much better than the stock carb, even with Dave's mods.

I don't know what XR's Only wants for their carb, but I paid $210 for the 450R carb, throttle, and cables on eBay. The carb I got was clean and barely used. Maybe they've gotten better, but I had such bad service from XR's Only back in 2006, I said I'd never do business with them again. It took 3 months, a dozen emails, and at least 7 phone calls to get an order filled and they never got it right.

[viper]

I'm not exactly sure what FDM paid for the TM38-85 carb but I think it was close to $500. New throttle tube and cable included. It's a single cable throttle design using a return spring located within the carb. Putting the new cable on was a bit tricky (having to keep the spring compressed while attaching the end to the needle's base). I feel the spring when twisting through the throttle a bit but that should break in. As for throttle response, FDM could tell you more after a short break in period.

[FDM]

I have also heard some complaints about XR's Only, They treated me good so far I received the carb in 4 days and it did bolt right up to the L.

I decided to go with a non pumper carb because of all the tuning problems I read about the pumpers, this is the XR 600r flatslide carb I paid $250.00 for it (The pumper carb was $450.00) so far it seems to have smooth throttle control and the bike purrs right along at a idle, I will know more once I get it on the road, we are now waiting on some thrust washers to come in for the starter clutch, seems someone had been in there before and came up with some extra parts cause they sure didn’t put them back in there place.

[my6]

Viper.. I believe I have the same carb on my 94. It seems to be a loose fit between the airbox and the manifold and I'm thinking I'm gonna have to do some field modifications to make it a snug fit. Any such issues?

[viper]

I had no issues my6.

[my6]

Thanks Viper.

[GaryHarris]

I wish I wouldn't of seen this.

[viper]

Originally Posted by GaryHarris

I wish I wouldn't of seen this.

I wish I wouldn't "have" seen this.

[FDM]

Originally Posted by GaryHarris

I wish I wouldn't of seen this.

Wish you haven't seen what?

[fshnrob]

Originally Posted by FDM

Wish you haven't seen what?

[Rman of 237]

Originally Posted by FDM

Wish you haven't seen what?

If he 'hadn't had' ?? opened this thread??

[EnduroRdr]

XR650L motor Reference site for you - (I think this link may have already been posted here?)
http://www.advrider.com/forums/showthread.php?t=713831

http://www.4strokes.com/forums/default.asp?CAT_ID=17

http://www.4strokes.com/tech/honda/


Good info on these.