I did a leakdown test about 2 months ago and I was leaking out the bottom of the case halfs. I'm going to split the cases sometime to yamabond them together. But, I really don't think that is my whole problem, Because it ran REALY good after that, until I took the engine on and off and back on... Now its just acting really werid. I know it will fail a compression test too, I've never felt a kickstarter that is so weak. But it still ran really good despite those things. I've checked the carb (which by the way doesn't run with an air filter), the reeds are good. I just checked all the electrical, it all reads good.... Can CDI's go bad gratually or do they just go out all at once? Because everything in my electrical tests in spec, But I'm still not getting really good spark... :-/