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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oval Slots
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<blockquote data-quote="davg1607" data-source="post: 178236" data-attributes="member: 5360"><p>Quick update on my problem which has now been resolved with your help.</p><p></p><p>On further inspection, it was not only the kickstart cover that had an oval slot but also the case itself. So, I drilled out the case and cover to 3/8" and fashioned a steel 3/8" sleeve to fit with an internal diameter to firmly hold the stud - see pictures below. This now firmly holds the cover and there is little or no movement.</p><p></p><p>I did have to ream the new outer kickstart bush to allow the kickstart to run smoothly but all good now.</p><p></p><p>The 'jumping' on the kickstart swing that I experienced was unrelated to this problem. When the box was rebuilt the worn ratchet pinion (PR50-38BA) had been replaced but not the driving ratchet (PR50-41BA). They looked like they engaged cleanly but a new driving ratchet resolved the problem - I guess it's a fine mechanical tolerance. </p><p></p><p>Thanks again for your help, my restoration continues and I'm now closer to starting the bike for the first time in my ownership. </p><p></p><p>Cheers, </p><p></p><p>Dave. </p><p></p><p>[ATTACH=full]61719[/ATTACH]</p><p></p><p>[ATTACH=full]61720[/ATTACH]</p></blockquote><p></p>
[QUOTE="davg1607, post: 178236, member: 5360"] Quick update on my problem which has now been resolved with your help. On further inspection, it was not only the kickstart cover that had an oval slot but also the case itself. So, I drilled out the case and cover to 3/8" and fashioned a steel 3/8" sleeve to fit with an internal diameter to firmly hold the stud - see pictures below. This now firmly holds the cover and there is little or no movement. I did have to ream the new outer kickstart bush to allow the kickstart to run smoothly but all good now. The 'jumping' on the kickstart swing that I experienced was unrelated to this problem. When the box was rebuilt the worn ratchet pinion (PR50-38BA) had been replaced but not the driving ratchet (PR50-41BA). They looked like they engaged cleanly but a new driving ratchet resolved the problem - I guess it's a fine mechanical tolerance. Thanks again for your help, my restoration continues and I'm now closer to starting the bike for the first time in my ownership. Cheers, Dave. [ATTACH type="full"]61719[/ATTACH] [ATTACH type="full"]61720[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oval Slots
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