So.I'll start of by saying that the only 2 stroke experience I have is with an 02 kx65 that I had for a little while. That being said, I was just given a project quad for my birthday. It's a 300ex chassis with what I believe to be a 01 cr250 engine. I'm having trouble getting it to start. The only way I can get it to crank over is by pulling it. Even then it will start but if I let the rpms fall it dies. I'm thinking with the longer baffle than stock it has, it might need new jetting. I would like to do this myself so any help with where I should start would be awesome.