2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 299Get this manual
22TROUBLESHOOTING ENGINE DOES NOT START OR IS HARD TO START ENGINE LACKS POWER POOR PERFORMANCE AT LOW AND IDLE SPEED POOR PERFORMANCE AT HIGH SPEED 22-' 22-2 22-3 POOR HANDLING 22-4 22-4
ENGINE DOES NOT START OR IS HARD TO START
Possible ca use
1Check fuel flow to carburetor- Not reaching
Reaching carburetor
Clogged fuel line and strainer Clogged fuel valve Clogged fuel tank breather hose
2Remove and inspect spark plug Wet plug Good condition
Flooded carburetor Thronle valve open Dirty ai cleaner Improperly adjusted pilot screw
3Perform spark testWeak or no
Faulty spark pl ug Fou led spark plug Loose or disconnected ignition