need help with 200x

[portland250r]

i have a 86 200x and it hesitates when i give it gas when its sitting running i rev it high and it gums up and revs low.
i will try to get a video.
i have taken the carb apart many times and cleaned it.
it runs but it lacks power.

[RodKnockRacing]

it may not be the carb check electrical for bad ground or bad cdi

[Escanabajosh]

rings? hows the tank look on the inside? might be rus/dirtt in there and clogging the petcock? the gas cap turned on? try loosening the gas cap sometimes the breather on the cap gets plugged. has it been sitting a while? make sure theres no mouse nest in the airbox. old gas. might need a carb rebuild?

thats all i can think of right now, them should be all cheap and easy to check.

[harryredtrike]

you have the choke in the right position?