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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin Clutch Drag
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<blockquote data-quote="paw99" data-source="post: 162475" data-attributes="member: 384"><p>And now, so much later, I think my clutch is sorted. Having started by replacing oil seals and bushes (several) that may have worsened the drag or failure to centralise by reducing free play, and most clutch components now new. Yes there needs to be free play, not least to tolerate any runout. Thanks to everyone, especially to Marcus for lending me mainshaft to test theory. All my fiddling leaves me still convinced that clutch shaft runout only became a problem when clutch lever pulled and wedged close tolerances together. Now new shaft and a bit more end float on C20 nut gives workable clutch. And the bonus is I filed kickstart quadrant ti prevent jamming (worked fine) and new selectir pawl spring (more defined gear selection and no jumping out). So a long time, but three fixes, great and thanks to all. Now my count of possible clutch drag causes is up from 12 to 13. </p><p>Next target 276 carburation!</p></blockquote><p></p>
[QUOTE="paw99, post: 162475, member: 384"] And now, so much later, I think my clutch is sorted. Having started by replacing oil seals and bushes (several) that may have worsened the drag or failure to centralise by reducing free play, and most clutch components now new. Yes there needs to be free play, not least to tolerate any runout. Thanks to everyone, especially to Marcus for lending me mainshaft to test theory. All my fiddling leaves me still convinced that clutch shaft runout only became a problem when clutch lever pulled and wedged close tolerances together. Now new shaft and a bit more end float on C20 nut gives workable clutch. And the bonus is I filed kickstart quadrant ti prevent jamming (worked fine) and new selectir pawl spring (more defined gear selection and no jumping out). So a long time, but three fixes, great and thanks to all. Now my count of possible clutch drag causes is up from 12 to 13. Next target 276 carburation! [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin Clutch Drag
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