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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin Clutch Drag
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<blockquote data-quote="greg brillus" data-source="post: 152075" data-attributes="member: 597"><p>Interesting find on the clutch drag issue.........The clutch in my Rapide has always worked extremely well........But in preparation for an up and coming rally in Tasmania in the later half of March this year, I thought I might attend to a couple of minor oil leaks that had been annoying me for a while........One was at the front of the primary cover, so I carefully disassembled everything and fixed the leak, plus checked everything else whilst in that area........After assembly I noticed the clutch was dragging a little, not crunching into gear, but the shift through the gears was not as smooth as it had been.......plus the usual symptom of the kickstart lever being inconsistant to push down with the clutch lever held back at the bars.........After checking it a couple of times, it was evident that the outer pilot clutch was not the culprit........So I disassembled it further today, and all looked ok, but after I removed the shoes and the C13 assembly........ I noticed that the C10 link rods were quite tight where they sandwitch within the plates of the C13........I'm pretty sure when I restored the bike back in 2015 that I renewed these 2 links and they are almost too snug a fit into the C13.........I then removed the 9 C14 pins/wire assembly, cleaned and buffed all the pins, lightly linished off the sides of these 2 link rods so they were no longer so tight a fit........used a very light smear of antiseize in the bores of these links, then reassembled the whole lot..........So what also happens there is when you tighten the 9 406 c/sunk screws very tight, this can actually squeeze tight the 2 discs of the C13 thus closing up the gap for the links to rotate freely........Now the clutch free's off everytime and is back to its perfect self again....... As we now know, it pays to "Not" have all the new or refurbished components to be too tight/snug a fit as this can cause unexpected issues when you feel that all should be ok......All good fun.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 152075, member: 597"] Interesting find on the clutch drag issue.........The clutch in my Rapide has always worked extremely well........But in preparation for an up and coming rally in Tasmania in the later half of March this year, I thought I might attend to a couple of minor oil leaks that had been annoying me for a while........One was at the front of the primary cover, so I carefully disassembled everything and fixed the leak, plus checked everything else whilst in that area........After assembly I noticed the clutch was dragging a little, not crunching into gear, but the shift through the gears was not as smooth as it had been.......plus the usual symptom of the kickstart lever being inconsistant to push down with the clutch lever held back at the bars.........After checking it a couple of times, it was evident that the outer pilot clutch was not the culprit........So I disassembled it further today, and all looked ok, but after I removed the shoes and the C13 assembly........ I noticed that the C10 link rods were quite tight where they sandwitch within the plates of the C13........I'm pretty sure when I restored the bike back in 2015 that I renewed these 2 links and they are almost too snug a fit into the C13.........I then removed the 9 C14 pins/wire assembly, cleaned and buffed all the pins, lightly linished off the sides of these 2 link rods so they were no longer so tight a fit........used a very light smear of antiseize in the bores of these links, then reassembled the whole lot..........So what also happens there is when you tighten the 9 406 c/sunk screws very tight, this can actually squeeze tight the 2 discs of the C13 thus closing up the gap for the links to rotate freely........Now the clutch free's off everytime and is back to its perfect self again....... As we now know, it pays to "Not" have all the new or refurbished components to be too tight/snug a fit as this can cause unexpected issues when you feel that all should be ok......All good fun. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Twin Clutch Drag
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