Heavy vibration (in 49cc forum too) By krisling (Read 575 times)

[krisling]

I just put in a hd stroker crankshaft to help support my 100cc bbk and other upgrades. I have an A9 camshaft, 19mm carb and 50mm head. Since I put on the crank, I've been having what I can only describe as a heavy vibration. I can feel it through the seat and in my handlebar assembly. I have 6.5gram variator weights. I get to about 8000 during takeoff then it stays around there until 42 mph or so GPS verified. Any ideas or experience with a vibration like this? It is not my brakes, axle or axle bearings. Feels more engine related. Maybe it is normal with the new crank and bbk, but just wanted to get some feedback. Thanks!



SCOOTLIFE

[jvino]

Krisling I would believe the rattle you are getting is from the variator or clutch. That would be my guese but recommend you ask ally or bashan. Also welcome to the sight. That's why this sight is here to ask questions don't be shy ask them guys there the experts.

Scooterlife I like it.