2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 94Get this manual
FUEL SYSTEM Damage to the pilot screw seat will occur if the pilot screw is tigh tened against the seat
Turn the pilot screw in and carefully count the num ber of turns until it seats lightlyMake note of this to use as reference when reinstalling the pilot screw
TOOL: Pilot screw wrench, type
07KMA-MN90101 or 07KMA-MN9A 100
Remove the pilot screwO-ring, spring, washer and O-ring Check the pilot screw for wear or damageRemove the throttle stop screwO-ring and spring Cleaning the air and Blow open each air and fuel passage in the carburefuel passages with tor body with compressed aira piece of wire will damage the carburetor body