Chain Binding

I just got a Chinese 2stroke engine kit. fitting the kit was a breeze but mounting the chain has been a real nightmare. my chain is not sitting on the teeth very well and the teeth just push the chain to derail. I am thinking of grinding the teeth. does any one know of a solution. any suggestions thanks

Pretty much everyone has to file/dremel the teeth of the rear sprocket so that they are more pointy. I think it is almost guaranteed that without doing this, the chain will pop off.

When I first got my bike going the chain popped off every minute, and the chain bunched up in the front sprocket area, and it was a real pain. Once I filed the sprocket teeth, no more problems with this.

it seems to sit fine on the rear but the front is where the problems are. It seams tight to get the file in to the front sprocket is it possible to remove the front sprocket and go from there with a file?

Hmm, if the chain is being pushed off the teeth of the front sprocket it could be that your chain is not tight enough. These chains need to be pretty darn tight, I read somewhere that the chain should only move up and down 1/4 inch.
I'm not sure how to get the front sprocket off, I'm sure there are lots of people on this forum that can help you; its full of helpful people that know the bike kits inside and out.

I think a combination of teeth reshaping and chain tension will be the way to go for my problem. I have a RK 415h chain that I will take the master link out and cut to the correct length. This chain is allot nicer than the stock chain.

Adjust your chain length first, but yes some people do have to file the front sprocket. I didn't so i don't now how to do it but there will be others who answer and do know how.

Try this thread it looks to be your problem.... drive sprocket

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Does the chain really fit well? My chain stretches so much I've been wondering if there was another chain out there the same size that wouldn't stretch.

3/4" not 1/4".

These chains should be run fairly LOOSE or you will encounter all kinds of bearing and tensioner problems.

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If it ain't broke, and you mess with it long enough, it will be.

maybe this has been my problem! dang

Some have to file the front sprocket, depending on who you bought your kit from.

The chain will stretch for quite a long time, but once it's done, it will not need to be adjusted frequently. 300 miles or so should do it, until then you will have to adjust the chain very often.

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If it ain't broke, and you mess with it long enough, it will be.