ok. so i can start up my blaster and it idles fine but there is a lot of white smoke coming out of the exhaust, then i could give it some gas and in mid range it would run fine but any more than that and it would choke down and die. i have read on here about it and most people say the crank seals are gone. but i want to be sure before i start tearing it down. so any advice you could give would be much appreciated?