It has been a few months but I finally tore it down. The final drive shaft gear is missing a couple teeth and one of the gears on the gear cluster is chewed to hell.
Also, the roller weights are torn up too. Most of them are flat on one side and one even had a big chunk of material missing.
I believe the issue started with the previous owner. He had the idol set too fast and was grinding the gears.
With all that said I have some purchases to make. I have these questions I would like your help with please
1) Can the power band be changed just by replacing/upgrading the Gear Cluster and Final Drive or will multiple gears need to be replaced?
2) What recommendations do you offer to a) increase low end torque and b) increase top speed. (i know I can't have both but would like to see what options I have in both cases)
3) How common are these parts? Do I need to order from the manufacturer or do I have other options?
Thanks for your support.
Another question.
Can I tear down a gear cluster? Only one gear is bad on the cluster.
I was wonder if my problem could be solved by buying something like this
http://www.ebay.com/itm/Chinese-Scoo...e19768&vxp=mtr