Problem with Drive sprocket swap

[david love]

Hi i changed my drive sprocket and now my chain is grinding against the engine has anyone else had this problem? And if so what are the options?

 

[david love]

Hi i changed my drive sprocket and now my chain is grinding against the engine has anyone else had this problem? And if so what are the options?

Nevermind i got it, apparently the sprocket i changed out was larger than the original one, had to grind some of the block down and the casing for the clutch arm. It's good to go now.

 

[david love]

I was looking at some other engines of mine and see that it eventually wears itself down over time, Unfortunately at the expense of the chain. Honestly i would advise anyone to do this right out of the package to avoid all of the hassle, not sure why the Chinese didn't in the first place.