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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Issues with multi plate clutches
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<blockquote data-quote="Jim Richardson" data-source="post: 45819" data-attributes="member: 1160"><p>I have a 750 Bonnie and the clutch wobbles like mad, when separated, there is a large (4"ish dia.) bronze washer to separate the hub from the outer. when I rebuilt the bike I couldn't get what I considered a close fit, so I made my own bronze washer and lapped it down until I was satisfied that the fit was as close as I could get, after a 1000 miles it was as slack as ever. Bonnie clutches hate traffic, I believe the only reason Triumph fitted a disc brake, was to stop you being dragged through traffic lights.The best mod is to fit Norman Hyde plates, which give 1 extra plate, this transforms the clutch, after a lot of pondering I think the improvement is largely down to better quality plates. I recently purchased Dennis Wilsons outfit, it has a multiplate, which he tells me is currently dry, but has run wet and it is so light that at a recent rally, people who had a little grab of the lever thought it was a standard clutch. it shows no sign of slipping even on hill starts and only grabs slightly if I don't pull away cleanly, my other multiplates range from OK but heavy to OH DEAR.</p></blockquote><p></p>
[QUOTE="Jim Richardson, post: 45819, member: 1160"] I have a 750 Bonnie and the clutch wobbles like mad, when separated, there is a large (4"ish dia.) bronze washer to separate the hub from the outer. when I rebuilt the bike I couldn't get what I considered a close fit, so I made my own bronze washer and lapped it down until I was satisfied that the fit was as close as I could get, after a 1000 miles it was as slack as ever. Bonnie clutches hate traffic, I believe the only reason Triumph fitted a disc brake, was to stop you being dragged through traffic lights.The best mod is to fit Norman Hyde plates, which give 1 extra plate, this transforms the clutch, after a lot of pondering I think the improvement is largely down to better quality plates. I recently purchased Dennis Wilsons outfit, it has a multiplate, which he tells me is currently dry, but has run wet and it is so light that at a recent rally, people who had a little grab of the lever thought it was a standard clutch. it shows no sign of slipping even on hill starts and only grabs slightly if I don't pull away cleanly, my other multiplates range from OK but heavy to OH DEAR. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Issues with multi plate clutches
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