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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Do It Yourself: Machine Shop, Garage, Tools and Tips » Archive through October 09, 2009 » Xb9r gear clash when selecting first from neutral? « Previous Next »

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Roadrunner
Posted on Thursday, October 11, 2007 - 08:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hello, I have an 03 xb9r with 8000 miles. When I start the bike in the morning I let it warm up in neutral and then take off. When I select 1st from neutral, clutch fully disengaged there is a "knock, clang," sound that sometimes accompanies a very short lerch forward, I am using factory harley trans fluid in the primary, have adjusted the cable (took all tension off cable disconnected it from the lever pushed it back as far as free play would allow, set screw 1/4 turn C/W from first sign of resistance, adjusted clutch free play, all should be good. The bike doesn’t want to move untill mid lever and it easily rolls backwards while in gear with the lever pulled so I don't feel that the clutch is still partly engaged. Is this normal? I read maybe I have the oil level to high? cold starts? If I pull the clutch in and shift to first from neutral it will usually make the noise, but if I shift up to neutral again and back down without ever letting the clutch out it will not make the noise, it only does it after I have let the clutch out in neutral. Ideas? thanks.
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Blake
Posted on Friday, October 12, 2007 - 04:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Somewhat normal for a cold tranny. Is exacerbated by even slightly over-filled primary/tranny. Synthetic gear lube helps reduce the behavior.

What is happening is that the rotating clutch plates are picking up a bit of lube; the cold lube is more viscous and thus passing a slight engagement torque through to the transmission. Just ensure that the lube level is correct and then always shift deliberately into gear; when you have a cold tranny, try blipping the throttle first and shifting into gear as the engine speed drops towards idle. That will help fling the excess lube from the rotating clutch plates.
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Roadrunner
Posted on Friday, October 12, 2007 - 11:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sounds like less of a deal then I thought. Thanks for the "diagnosis" I will recheck the oil and try the RPM method. thanks again.
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