carb question.

[jcs327]

I am working on an older 300 fourtrax. it idles fine but bogs when above 1/8th throttle. seems like the idle/pilot circuit is fine but when you gas it the engine bogs out. I played with the fuel screw and made sure the air filter was clean and secure and there are no leaks. any suggestions? thanks in advance.

[RiderTRX400ex]

if you havent cleaned the carb, do that and take your time making sure to get everything, still having same problem id look into spark or maybe the fuel petcock is gummed up

- good luck

[jcs327]

carb was just cleaned and reassembled (not by myself). I am thinking it sounds like a problem in the needle jet area or just plane too lean.