I have a 300 Express 2 stroke.I'm mixing at 40:1, when i put a heavy load on the bike like pulling or riding a friend up a hill man this thing smokes like crazy! My oil is Klotz,Dynoport pipe,jet kit,40 over. Should i mix 32:1? thanks for the help!

 

Your going the wrong way. You need to go to 50 to 1 to clean it up. How many hours are on this thing? Do a compression and see what numbers you come up with.