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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Gearbox advice needed.
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<blockquote data-quote="Martyn Goodwin" data-source="post: 138134" data-attributes="member: 2433"><p>I have had EXACTLY that problem, not once, but twice with my Comet. Gearbox drive sprockets had NOT been hardened.</p><p></p><p>Also can be caused by the drive sprocket nut not being securely tightened allowing it to move ever so slightly then 'worrying' away at the splines on the sprocket. Can even damage the splines on the gearbox output gear shaft. </p><p></p><p>The give away is that you can kick start the motor, you can change gears but nothing happens at the back wheel - its just like a broken drive chain - till you wake up that the drive chain is intact.</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 138134, member: 2433"] I have had EXACTLY that problem, not once, but twice with my Comet. Gearbox drive sprockets had NOT been hardened. Also can be caused by the drive sprocket nut not being securely tightened allowing it to move ever so slightly then 'worrying' away at the splines on the sprocket. Can even damage the splines on the gearbox output gear shaft. The give away is that you can kick start the motor, you can change gears but nothing happens at the back wheel - its just like a broken drive chain - till you wake up that the drive chain is intact. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Gearbox advice needed.
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