Hey guys. We picked up a blaster at a steal of a deal many years ago. It was on the side of the road for $600. The guys daughter used to race it and they were selling it because they thought it was making a bad sound from the engine (turned out to just be exhaust pinging). Anyways we paid $400 for it when I was in 8th or 9th grade. This was in about 2005 and I put a ton of hours on it.
Before I moved out of my parents house it started to get annoying. It's obviously a go fast fourwheeler and I never had an issue before with doing nothing but open throttle or no throttle.
First gear is fine, second is usually fine, once you start hitting the hirgher gears it just bogs down and every now and then it will stop bogging towards the end of the gear, shift up and it might do the same thing in the gears above, it might not. It's intermittent and can even cause me to lose a race against a 250 utility fourwheeler.
I am looking to get this thing back in the field and have been wondering what it could be. I've cleaned the carb, changed the plug nothing. My cousin who was a blaster fanatic had me drill a few holes in the air box before the filter, nothing. Could this possibly be an ignition coil or something? One of the exhaust studs came out and was leaking by the pipe so I thought that would fix it, nothing.
Any input recommended. Note because it was raced anything unnecessary was removed. No lights, no kill switch (except the key), FMF pipe, oil mixer removed and done manually.
I just ordered a used, non cut wiring harness to ditch all the cut wires to eliminate any shorts.
Might grab a carb rebuild kit and ignition coil to see if that fixes it. Might as well do a carb rebuild too