10 - 1TRBLSHTGEBS00537TROUBLESHOOTINGNOTE:_The following troubleshooting does not cover all the possible causes of trouble. It should be helpful,however, as a guide to troubleshooting. Refer to the relative procedure in this manual for check,adjustment and replacement of parts.STARTING FAILURE/HARD STARTINGFUEL SYSTEMFuel tank• Empty• Clogged fuel filter• Clogged fuel breather hose• Deteriorated or contaminated fuelFuel pump• Clogged fuel hose• Damaged vacuum hoseCarburetor• Deteriorated or contaminated fuel• Clogged pilot jet• Clogged pilot air passage• Sucked-in air• Deformed float• Worn needle valve• Improperly sealed valve seat• Improperly adjusted fuel level• Improperly set pilot jet• Clogged starter jet• Starter plunger malfunctionAir filter• Clogged air filter elementELECTRICAL SYSTEMSpark plug• Improper plug gap• Worn electrodes• Wire between terminals broken• Improper heat range• Faulty spark plug capIgnition coil• Broken or shorted primary/secondary• Faulty spark plug lead• Broken bodyC.D.I. system• Faulty C.D.I. unit• Faulty pickup coil• Broken woodruff keySwitches and wiring• Faulty main switch• Broken or shorted wiring• Faulty gear position switch• Faulty brake light switchStarter motor• Faulty starter motor• Faulty starter relay• Faulty starter clutchBattery• Faulty batterySTARTING FAILURE/HARD STARTING