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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Wet Multiplate Tips, Please
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<blockquote data-quote="Howard" data-source="post: 26077" data-attributes="member: 271"><p>From someone who's had a multiplate for 36 years and frequently pondered the problem of getting more lift, sometimes in a warm bed on a sleepless night, and sometimes sitting at the side of a road waiting for the clutch to cool and the traffic to clear ........ There ain't no easy solution. It's all about levers - Archimedes said he could move the world with a lever - he picked the easy problem - he never met my clutch lever!!</p><p></p><p>G91 was never meant for a multiplate, the lever ratio is all wrong, and I can't see an easy way to change the ratio, because you need to add length below the push rod, so you need a longer G91 and a resited adjuster screw. I think this is the mod I hinted at earlier, but it's a lot of work, and without stripping bits of my gearbox to try it, I'm not sure it would give that much improvement.</p><p></p><p>I opted for more movement of G91, but as I said, I'm limited by span. TT is right about different pivot ratios on the lever, but I've never found the right one - there may be one, I just haven't found it.</p><p></p><p>So my latest train of thought is to use the washer spacers (OK I can make a proper job if it works, but it's not seen anyway) to give the max travel possible at the push rod. All I need to do then is operate it using my limited finger span. So...how about splitting the clutch cable and using an intermediate lever (or pulley) to increase the cable travel????? Trade off with levers - half the travel at the lever= twice the force required, but there should be a happy medium. And my biggest next problem is, there's no free space on an Egli to fit a lever system. I could design a pulley in a box to do the job, but I'm enjoying riding when I have free time, not pratting about in the garage.</p><p></p><p>OK that's enough for now - my brain hurts.</p><p></p><p>H</p><p></p><p>ps I think I've just thought how to do it, but Boring Work beckons, so watch this space over the weekend.</p></blockquote><p></p>
[QUOTE="Howard, post: 26077, member: 271"] From someone who's had a multiplate for 36 years and frequently pondered the problem of getting more lift, sometimes in a warm bed on a sleepless night, and sometimes sitting at the side of a road waiting for the clutch to cool and the traffic to clear ........ There ain't no easy solution. It's all about levers - Archimedes said he could move the world with a lever - he picked the easy problem - he never met my clutch lever!! G91 was never meant for a multiplate, the lever ratio is all wrong, and I can't see an easy way to change the ratio, because you need to add length below the push rod, so you need a longer G91 and a resited adjuster screw. I think this is the mod I hinted at earlier, but it's a lot of work, and without stripping bits of my gearbox to try it, I'm not sure it would give that much improvement. I opted for more movement of G91, but as I said, I'm limited by span. TT is right about different pivot ratios on the lever, but I've never found the right one - there may be one, I just haven't found it. So my latest train of thought is to use the washer spacers (OK I can make a proper job if it works, but it's not seen anyway) to give the max travel possible at the push rod. All I need to do then is operate it using my limited finger span. So...how about splitting the clutch cable and using an intermediate lever (or pulley) to increase the cable travel????? Trade off with levers - half the travel at the lever= twice the force required, but there should be a happy medium. And my biggest next problem is, there's no free space on an Egli to fit a lever system. I could design a pulley in a box to do the job, but I'm enjoying riding when I have free time, not pratting about in the garage. OK that's enough for now - my brain hurts. H ps I think I've just thought how to do it, but Boring Work beckons, so watch this space over the weekend. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Wet Multiplate Tips, Please
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