i have a 2011 hisun ys 400 idles high,once in awhile, runs horrible under load. iv'e put several differant carbs on it , cleaned the gas tank , took off the vaccum fuel pump and put an
electric fuel pump. no change HELP
this is a carburated engine, but was wondering is there any electrical components that meter the fuel flow, like mass air flow senser or something like that could be causing the fuel delivery
problem.
ps i have owned this rig since it was new , and haven't had a full year of flawless riding.
oh and bought it from menards and told me i was stuck with it.