2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 532Get this manual
TROUBLESHOOTING
ENGINE DOES NOT START OR IS HARD TO START
TROUBLESHOOTING
1Fuel Line Inspection Check fuel flow to carburetorDoes fuel reach carburetor? NO Clogged fuel line or strainer Faulty fuel valve Clogged fuel tank breather hose YES GO TO STEP 2
2Spark Plug Inspection Remove and inspect spark plugIs the spark plug wet? YES NO 3Spark Test Perform spark testIs there weak or no spark? YES NO Faulty spark plug Fouled spark plug Loose or disconnected ignition system wires Broken or shorted spark plug wire Faulty ignition coil Faulty ignition pulse generator Faulty engine stop switch Faulty ignition switch Faulty engine control module (ECM) Flooded carburetor Throttle valve open Dirty air cleaner Improperly adjusted pilot screw Starting enrichment (SE) valve stuck open or damaged