1993-2000 Honda TRX300EX Service Manual, Page 183Get this manual
Electric StarterStarter Clutch Starter Motor Turns Slowly Low specific gravity in battery (or dead battery) Poorly connected battery terminal cable Poorly connected starter motor cable Faulty starter motor Poorly connected battery ground cable Starter Motor TUrnsBut Engine Does Not Turn Starter motor is running backwardCase assembled improperlyTerminals connected improperly Faulty st arter clutch Damaged reduction gear Starter Relay Swftch "Clicks"But EngIne Ooes Not Turn Over Crankshaft does not turn due to engine problem Excessive reduction gear friction