Drivetrain curiosity

GoldenMotor.com

wrenching4fun

Active Member
Jun 6, 2016
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North Carolina
Has anyone tried putting a centrifugal clutch on the output side of a jackshaft instead of the engine? I realized the engagement would be delayed, but what are the other drawbacks? Any advantages?
 
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Tony01

Well-Known Member
Nov 28, 2012
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sf bay area
It’s a perfect setup because it keeps the bike slimmer and stock cent clutches need stronger springs anyway to optimize the engagement point, but putting them on the jack shaft with a slight reduction puts them in the perfect rpm range for motor. WHIZZERs have the clutch on the jackshaft, there’s also the q-matic transmission that does it like that as well. It’s better. The clutch on motor is just something carried over from vehicles without jackshafts like go karts or minibikes.