Well my son wanted a 4 wheeler and I came across a 2005 blaster for a good price. It ran well for a the first tank of gas then it ran out of gas and killed the top end of motor. I farm and he was wanting to ride so to save time I took it to a local shop to do the rebuild. Was hosed on the cost and wish now I would have taken the time to do it myself. Anyway here is the thing when we got it home he drove it for about 10 minutes and it ran fine. It set for a week and ran it again this time it started a little hard but did start and run. It idled fine but had lack of power at open throttle. We parked it and overnight it leaked fuel out on floor. Soooo what do I need to do? It has a 30mm carb with a KN air foam filter, it has a aftermarket exhaust. Any thoughts would be great