'85 CT 70 kick start slips
- Thread starter bigmoe
- Start date
kjax74k3
Member
could be your friction spring setup.that's the reason the gear engages. if it slips like that it couldn't possibly be the clutch because you would still feel the resistance of the gearbox and the driven gear if it was just the clutch going. had both experiences happen. the spring is a cheap part vs a expensive clutch id try the spring first before going out and paying alot for a clutch. what is the adjustment screw at is it all the way in? halfway?
Hate to step on anyone's toes, but it really sounds like clutch slippage and that's a LOT easier to fix (not that expensive either).
The kickstart pinion gear fits loosely over helical grooves in the end of the shaft. The friction spring is fitted to a shoulder at the center of the gear, indexed by a notch in the cases. When the kickstart is turned, the drag causes the gear to move toward the LH side of the engine, where it engages the trans. The rotation of the kickstart shaft on the return causes the pinion gear to move back to the RH side and into the "parked" position. Tranny motion assists this. Without the friction spring, it is quite possible to turn the kickstarter over without engaging the pinion gear. No resistance would be felt. It's an either/or thing; the gear engages or it doesn't. Replacing the friction spring requires splitting the cases...a half-day job to install a $3 part. The good news is: it's not necessary to get anywhere near that level of disassembly to make the call.
The quick & painless test is to spin the kickstarter by hand, varying the speed. With the frcition spring in place (and they rarely ever wear out), the kickstart mechanism should engage no matter how slowly the kickstarter is moved. It's possible to make the pinion gear engage with no friction spring in place - by rapidly snapping the kickstart arm and letting inertia do the job.
I'd pull the RH cover and try turning the engine over, gently (keep in mind that the kickstart shaft is unsupported at the RH end with the cover removed), by hand via the kickstarter. You should be able to actually see the clutch slipping, as would be expected from worn discs and/or plates. The good news is that the cases don't need to be split to rebuild the clutch and a half C-note buys new plates, discs & springs.
The kickstart pinion gear fits loosely over helical grooves in the end of the shaft. The friction spring is fitted to a shoulder at the center of the gear, indexed by a notch in the cases. When the kickstart is turned, the drag causes the gear to move toward the LH side of the engine, where it engages the trans. The rotation of the kickstart shaft on the return causes the pinion gear to move back to the RH side and into the "parked" position. Tranny motion assists this. Without the friction spring, it is quite possible to turn the kickstarter over without engaging the pinion gear. No resistance would be felt. It's an either/or thing; the gear engages or it doesn't. Replacing the friction spring requires splitting the cases...a half-day job to install a $3 part. The good news is: it's not necessary to get anywhere near that level of disassembly to make the call.
The quick & painless test is to spin the kickstarter by hand, varying the speed. With the frcition spring in place (and they rarely ever wear out), the kickstart mechanism should engage no matter how slowly the kickstarter is moved. It's possible to make the pinion gear engage with no friction spring in place - by rapidly snapping the kickstart arm and letting inertia do the job.
I'd pull the RH cover and try turning the engine over, gently (keep in mind that the kickstart shaft is unsupported at the RH end with the cover removed), by hand via the kickstarter. You should be able to actually see the clutch slipping, as would be expected from worn discs and/or plates. The good news is that the cases don't need to be split to rebuild the clutch and a half C-note buys new plates, discs & springs.