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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through July 17, 2006 » Primary chain « Previous Next »

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Xbgiorgioxb
Posted on Friday, July 14, 2006 - 11:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Does anyone know wich tension i have to register primary chain of my xb12?

thanks
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Rhun
Posted on Friday, July 14, 2006 - 04:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I believe 1/4 to 3/8th inch cold up to 1/2 inch hot. Refer to manual. Too tight is hard on shafts too loose and your bike surges at low speeds and puts a delay in the throttle feel.
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Diablobrian
Posted on Friday, July 14, 2006 - 04:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Field testing says 5/8-3/4 inch at the tight spot is better. a little loose is better than a little tight.
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Jackbequick
Posted on Friday, July 14, 2006 - 10:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

What Diablobrian says and that is for a cold engine. Warmed up that will measure less, probably somewhere around the 1/2" or so that Rhun mentioned. But Rhun's cold measurement should be 3/4".

For the record
5/8" = 16mm
1/2" = 13mm
3/4" = 19mm

Jack
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Diablobrian
Posted on Friday, July 14, 2006 - 10:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks for the clarification JBQ. I appreciate it.
I made an assumption that I really shouldn't have.
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Firebolteric_ma
Posted on Saturday, July 15, 2006 - 10:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

well i just got done changing my broken primary cover today.(BROKE RIGHT AT THE CLUTCH ARM) did the primary re-torque and had to re-adjust the chain. i must admit the 5/8-3/4 is the way to go. my bike never shifted so smooth. the dealership had it to tight as i would have trouble finding neutral and it shifted ruff. i'm impressed with the new feel of the transmission now!! DANG I LOVE THIS BOARD!!!!
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