My TaoTao Hellcat 125cc

[DudeMantia]

Originally Posted by PhildoScaggins

is there a way to adjust the tension on the timing with these bikes? I had to use the old cam sprocket because the one that came with the head with skip a tooth when rotated. the tension is super high and very difficult to get the sprocket on.

The timing chain inside the cylinder head can be loosened by removing the other bolt on the bottom of the engine that is NOT the Oil plug.

It will drop a little bit of oil, a spring, and this longish metal piece with holes through it. This is the timing chain tensioner

I don't know exactly if there is a way to loose or adjust it but thats what I had to remove just to be able to put the cam sprocket back on.