2001-2003 Honda TRX500FA Factory Service Manual, Page 88Get this manual
FUEL SYSTEM
TROUBLESHOOTING
Engine cranks but n't start No fuel in tank No fuel to carburetoClogged fue strainerClogged fue lineClogged fuel tank breather tubeMisadjusted fuel lev el Too much fuel getting to th engi neClogged air cleaneFlooded carbure tor Intake air leak Conta inateddeteriorated fuelClog ged jets Clogged starti ng enrtcnm ent valve ci rcuit Improper starting enrichment valve operation Improper th rottle operation No spark at plug (f aulty ignition sy stemsection 20) Afterbum when engine braking is used ean mixture in slow ci rcuit Faulty ig ni tion sy st em (section 20) Backfiring or isfiring during accelerat ion ean mixture Faulty ig nit ion sy st em (sec io 20) Poor performance (driveability) and poor fuel economy Clogged fu el sys te Faulty ig ni ion syst em (sec io 20)