Hey guys I have a 2000 blaster I with a newly built engine. It has good compression and ran great for about 10 hours then all of a sudden it was hard to start and ran like crap. Now it starts and runs but only if I keep giving it gas and once I try riding it no power and wants to die. I took it to a mechanic and he said he fixed it and said the only problem was it needed tuned but once I got it back sat for weeks due to rain and one the first day of riding it still wouldn't run right maybe even worse. So I got screwed because now he wont help me anymore. I'm thinking it might be a carb problem I've already cleaned the carb twice and still using the same size jets anyone have any other ideas what could cause it to keep bogging down and want to die?