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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting Problem - Series 'C' BIG Single
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<blockquote data-quote="greg brillus" data-source="post: 158268" data-attributes="member: 597"><p>Jez, Some of these engines dont like to start by simply turning the engine just over TDC and then kicking........This can depend on the gearbox used as well, but some like the engine tuned over more, and then kick.......that is, if you push the lever at the top of its stroke, to go just over TDC, continue pushing the lever down more.........re set the lever up again, and then kick.........One other large issue as well, if this engine was one of JR then it could have one of his big cams........If its anything like the one in my racer, the duration is massive.......The inlet closes not more than 80 or less degrees before TDC and they have a huge overlap.......this means that part of the intake charge is being pushed out before it gets drawn in........So that could make starting difficult as well........It will come down to some careful but simple settings, but probably just technique to start it every time..........My Rapide has quite big cams in it, and it needs a good firm kick to start every time........If you use a lazy kick on mine you will be there all day trying.........The joys of hotted up engines........All good fun.......Cheers.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 158268, member: 597"] Jez, Some of these engines dont like to start by simply turning the engine just over TDC and then kicking........This can depend on the gearbox used as well, but some like the engine tuned over more, and then kick.......that is, if you push the lever at the top of its stroke, to go just over TDC, continue pushing the lever down more.........re set the lever up again, and then kick.........One other large issue as well, if this engine was one of JR then it could have one of his big cams........If its anything like the one in my racer, the duration is massive.......The inlet closes not more than 80 or less degrees before TDC and they have a huge overlap.......this means that part of the intake charge is being pushed out before it gets drawn in........So that could make starting difficult as well........It will come down to some careful but simple settings, but probably just technique to start it every time..........My Rapide has quite big cams in it, and it needs a good firm kick to start every time........If you use a lazy kick on mine you will be there all day trying.........The joys of hotted up engines........All good fun.......Cheers. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Starting Problem - Series 'C' BIG Single
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