It doesnt hit it w/ my aftermarket cdi. Its fine for a couple mins and then it just $hits out. I dont hold it wot in fifth that offten unless we are all racing down a gravel road or somthing.
I will check the plug and report back. It has looked a little on the blackish side when ive checked before. Could be a little rich.I'd say that you need a little less on main.It could be loading up on fuel.Whats the plug look like?