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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Clutch plunger spring adjustment
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<blockquote data-quote="stu spalding" data-source="post: 126405" data-attributes="member: 2563"><p>In order for accurate adjustment of the clutch to be obtained, what is required is a dummy centre (pictured). It's a simple turning job in hard plastic. This removes all guesswork from setting the thimble C12 to the right depth. Simply assemble the clutch on the centre and adjust C12 until the shoes expand to six inches when actuated. It is essential that the travel of the plunger in C7 is absolutely smooth as the slightest resistance will result in a grabby clutch. People have been saying for 70 years "Oh, it wouldn't be a little thing like that" but it is. I spent a great deal of time and effort in 2014 sorting out exactly what makes the twin clutch tick and when it's right it is light, progressive and smooth in operation, when it's nearly right it's a piece of junk. Cheers, Stu.[ATTACH=full]36917[/ATTACH]</p></blockquote><p></p>
[QUOTE="stu spalding, post: 126405, member: 2563"] In order for accurate adjustment of the clutch to be obtained, what is required is a dummy centre (pictured). It's a simple turning job in hard plastic. This removes all guesswork from setting the thimble C12 to the right depth. Simply assemble the clutch on the centre and adjust C12 until the shoes expand to six inches when actuated. It is essential that the travel of the plunger in C7 is absolutely smooth as the slightest resistance will result in a grabby clutch. People have been saying for 70 years "Oh, it wouldn't be a little thing like that" but it is. I spent a great deal of time and effort in 2014 sorting out exactly what makes the twin clutch tick and when it's right it is light, progressive and smooth in operation, when it's nearly right it's a piece of junk. Cheers, Stu.[ATTACH type="full"]36917[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Clutch plunger spring adjustment
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