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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Poorish compression and piston leak by
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<blockquote data-quote="Big Sid" data-source="post: 43396" data-attributes="member: 2781"><p>Fitting a long velocity stack or ram tube boosts torque in the lower range and up into the mid range , this can assist usable power , </p><p> So desirable in the Comet motor . Does the same in a twin times two . These work better without a filter screen and having a smooth flaring out on its end . Really a welcome improvement . </p><p> A free flowing muffler like a Burgess glas PAC or Toga of the same unobstructed central passage of AT LEAST 1and 1/2 inch , larger is better , a full 1and 5/8s is excellent . But usually louder . Note the. Need for an increase in main jet size . </p><p> Old saying . " Cubic power costs cubic money ." Sid .</p></blockquote><p></p>
[QUOTE="Big Sid, post: 43396, member: 2781"] Fitting a long velocity stack or ram tube boosts torque in the lower range and up into the mid range , this can assist usable power , So desirable in the Comet motor . Does the same in a twin times two . These work better without a filter screen and having a smooth flaring out on its end . Really a welcome improvement . A free flowing muffler like a Burgess glas PAC or Toga of the same unobstructed central passage of AT LEAST 1and 1/2 inch , larger is better , a full 1and 5/8s is excellent . But usually louder . Note the. Need for an increase in main jet size . Old saying . " Cubic power costs cubic money ." Sid . [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Poorish compression and piston leak by
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