1997-2001 Honda TRX250 Fourtrax Recon Service Manual, Page 73Get this manual
FUEL SYSTEM
TROUBLESHOOTING
Engine cranks but won't start No fuel to carburetor Engine looded wi fuel No spa rk at plug (ignition system faulty) Clogged ai cleaner Intake air leak Improper choke operation Improper hrott le operation Engine idles roughly, runs poorly stalls Improper choke operation Ignition ma lfu nction Fuel contaminated Intake air leak Incorrect idle speed Incorrect pil ot sc rew ad ustment Low cy li nde comp ressio Ric mixture Lean ixture Clogged carbu retor Misfiring during acceleration Ignit ion system aulty Lean mixture Afterburn during acceleration Ignition system faulty Lean mixtu re Poor performance (driveability) and poor fuel economy Fuel system clogged Ignition sy st em faulty Air clea ner clog ged Afterfiring Ignition system malfunction Carburetor malfunction Lean ixture Rich mixt ure Lean mixture Clogged uel jets Fau lty float va lve Float leve too low Blocked fue fill cap air vent hole Clogged fuel strainer screen Restricted fuel line Clogged air vent tu be Intake air leak Rich mixture Clogged air cleaner Worn jet needle or needle jet Fau lty loat valve Float leve too high Clogged air jet