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upshifting from 1st to 2nd gear, very abrupt
upshifting from 1st to 2nd gear, very abrupt
I have a 1975 R60/6. I am having an issue where when shifting from 1st to 2nd gear, after releasing the clutch, the engagement makes a loud clunk and and jerks the motorcycle forward violently? I have tried both higher RPM's 4000 to 4500 and lower 2000 to 2500, prior to shifting and no affect trying to smooth out the engagement. The only thing that smooths this out is to delay engagement of the clutch by a couple of seconds. This is also happening when shifting from 2nd to 3rd, occasionally, but not as consistent as 1st to 2nd gear. I recently had the gearbox rebuilt by a reputable BMW shop too, and prior to this the engagement was not this abrupt.
Any advise is appreciated.
Motaman
- schrader7032
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Re: upshifting from 1st to 2nd gear, very abrupt
But if the problem is not something inside the box, it could be that the input splines on the transmission need lubing. If the shop did that, then it becomes more of a puzzle. But it seems like the clutch disk is not sliding back and forth on the splines, thus creating the abruptness.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
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Re: upshifting from 1st to 2nd gear, very abrupt
I will add the suggestion you recheck the installation of the clutch and clutch adjustment. St.
Re: upshifting from 1st to 2nd gear, very abrupt
It sounds like the engine speed is not coming down. Is there slack in the throttle cables? Is the advance mechanism free and returning properly? Is the idle speed too high?
Mike
69 R60/2 76 R90S 78 R100RS
70 Triumph w/Spirit Eagle Sidecar