I took apart the carb and cleaned it inside and out and dumped the old gas. Started right up but ran really rough....just like before. I played with the choke and it ran a lot better. I still have the choke open a smidge to make it run that way. Took it out for a spin and it was working perfect...
I just built a mini bike from scratch. It has a 6.5 hp engine. I had just completed the build and was out on my first test run when the engine crapped out. Had it running for about 20 minutes with no issues. Just won't restart. Engine is about 3 years old and has always started. I was not in use...