RadicalxEdward
Member
So I recently switched this engine to a new bike cause the old one was crap. For some reason it's lost 3-10 miles per hour on average. But that's not the biggest issue. I've tried various fuel /air mixtures and such, but for some reason the bike cuts out when it's not under heavy load a full throttle. So going up hills, fine. Accelerating, fine. but once it gets going about as fast as it's going to go (which is only about 19mph at the moment instead of the old bikes 30 despite being much heavier) it cuts out until it slows down a little, then runs/accelerates a bit, cuts out, slows, runs/accelerates, rinse and repeat.
At first I thought was because of air getting into the fuel line because it used to start bubbling every few minutes unless i loosened the gas cap for a few seconds, but I'm pretty sure i've sorted that out. Now it's just this cutting out and low speed thing.
It also sounds like there's something clanking slighty at the bottom of each revolution. but i can't figure it out. I looked inside and it's nothing above the piston and nothing obvious below it but i haven't stripped down the whole thing. Any and all ideas welcome.
At first I thought was because of air getting into the fuel line because it used to start bubbling every few minutes unless i loosened the gas cap for a few seconds, but I'm pretty sure i've sorted that out. Now it's just this cutting out and low speed thing.
It also sounds like there's something clanking slighty at the bottom of each revolution. but i can't figure it out. I looked inside and it's nothing above the piston and nothing obvious below it but i haven't stripped down the whole thing. Any and all ideas welcome.