Joined
·
636 Posts
I have an 04 foreman S 450. It has a big bore kit on it and it was reciently sunk. The top end was redone and we had it running great, but now it won't start and run. It will run with the choke on and I have to keep it reved up or it dies. It pops and bangs out the exhaust and I can see flames shoot out when it pops. I have had the carb off and soaked it in gas and blew all the passage ways out to make sure they are clean. I have pulled out all of the jets and the mixture screw and made sure they are cleaned. I am at a loss here. The exhaust is getting so hot that airbox has melted at the bottom and the rear fender was too hot to touch. That tells me that the bike is lean. So I have kept turning the airmix screw out a half turn eachtime and it still will not richen up. Can any one tell me where to start from step one. This thing is driving me crazy. We had the bike dynoed at mud mania and the next day the bike would not run. I have no idea what they did so I am now lost. HELP