B
Bill Snow
Guest
After putting this motor (Chinese 70cc ) on the bike it worked great. But after a few miles it developed a rump rump rump sound in the chain area. It was not rubbing on anything and the sound is very pronounced.
So, here is what I have done:
Replaced the chain with a heavy duty chain ( thought the light chain may have become stretched ).
Rechecked the rear sprocket to be sure it is well centered. It is. When I bought the kit from Livefast motors I got both the small and large sprockets. Chose to use the large sprocket with 9 mounting holes, the smaller sprocket only had 4 mounting holes.
Checked the chain run ( that it is running straight from sprocket to sprocker).
I still get the rump rump sound and the chain does not seem to be running smooth but it does not tighten and loosen as it turns that I can tell. ??????
Decided to stop here before I start changing sprockets and other things, maybe get some suggestions before I dug in any further. I noticed there are some pretty sharp people on this forum that are better at this than I.
Bill Snow
So, here is what I have done:
Replaced the chain with a heavy duty chain ( thought the light chain may have become stretched ).
Rechecked the rear sprocket to be sure it is well centered. It is. When I bought the kit from Livefast motors I got both the small and large sprockets. Chose to use the large sprocket with 9 mounting holes, the smaller sprocket only had 4 mounting holes.
Checked the chain run ( that it is running straight from sprocket to sprocker).
I still get the rump rump sound and the chain does not seem to be running smooth but it does not tighten and loosen as it turns that I can tell. ??????
Decided to stop here before I start changing sprockets and other things, maybe get some suggestions before I dug in any further. I noticed there are some pretty sharp people on this forum that are better at this than I.
Bill Snow