Otto Neumann
Active Member
Greetings!
I just completed my second build, a cruiser bike with a classic Huasheng 142-F kit:
Feel free to take a look!
I'm experiencing some troubles with the transmission and the clutch:
My bell seems to be out of concentricity, as it performs a sort of wiggle and touches the transmission's pulley in a precise spot, and causes a ringing noise while spinning. The play seems to be very minimal, it could be solved by sanding the bell a little just to gain some clearance, the bell could even have a non perfectly flat surface too.
My stock clutch also occasionally attempts to catch the bell while the engine is idling, causing the bike to jolt when parked, and giving uncomfortable kicks while riding with the engine on, but idling.
I just came back from the first ride, and I noticed a generous amount of black flakes covering the rear fork and fender.
I'm aware of what fenders can do: Every "non serviceable" bolt in this bike has been torqued down with Loctite medium strength thread locker.
Being a centrifugal clutch, I lowered the idle as much as the engine could tolerate without shutting down on its own, but it didn't solved the problem.
The engine were out of tune since it came to me, it took 15 pulls to start and 2 once warm, it must have been lean:
I screwed the air screw all the way in until snug and then unscrewed by 3,5 turns, after getting it started and warm I kept unscrewing until the bogging ceased and the engine felt responsive again; right now it starts at the second pull as cold and always at the first once warm, it's a great lil engine.
It bogs a little while throttling up and takes its time to idle back, causing the clutch to stay engaged for a few seconds, causing an uncomfortable braking.
I have linked a pair of videos of the jolty and ringing idling, after a ride the clutch probably wore out a little, but it generally is much more violent.
Do you have any suggestions?
I just completed my second build, a cruiser bike with a classic Huasheng 142-F kit:
Feel free to take a look!
I'm experiencing some troubles with the transmission and the clutch:
My bell seems to be out of concentricity, as it performs a sort of wiggle and touches the transmission's pulley in a precise spot, and causes a ringing noise while spinning. The play seems to be very minimal, it could be solved by sanding the bell a little just to gain some clearance, the bell could even have a non perfectly flat surface too.
My stock clutch also occasionally attempts to catch the bell while the engine is idling, causing the bike to jolt when parked, and giving uncomfortable kicks while riding with the engine on, but idling.
I just came back from the first ride, and I noticed a generous amount of black flakes covering the rear fork and fender.
I'm aware of what fenders can do: Every "non serviceable" bolt in this bike has been torqued down with Loctite medium strength thread locker.
Being a centrifugal clutch, I lowered the idle as much as the engine could tolerate without shutting down on its own, but it didn't solved the problem.
The engine were out of tune since it came to me, it took 15 pulls to start and 2 once warm, it must have been lean:
I screwed the air screw all the way in until snug and then unscrewed by 3,5 turns, after getting it started and warm I kept unscrewing until the bogging ceased and the engine felt responsive again; right now it starts at the second pull as cold and always at the first once warm, it's a great lil engine.
It bogs a little while throttling up and takes its time to idle back, causing the clutch to stay engaged for a few seconds, causing an uncomfortable braking.
I have linked a pair of videos of the jolty and ringing idling, after a ride the clutch probably wore out a little, but it generally is much more violent.
Do you have any suggestions?