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1999 honda foreman 400 charging problems

5320 Views 2 Replies 2 Participants Last post by  Honda Mechanic
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WAS OUT RIDING AFTER DARK, HEADLIGHTS KEPT GETTING DIMMER AND DIMMER, FINALLY WENT OUT, AND BIKE QUIT, BIKE STARTED BACK UP BUT WHEN HEADLIGHTS WERE TURNED ON IT STALLED, BIKE WOULD ONLY START BY PULL STARTING. BROUGHT IT HOME CHARGED BATTERY AND BIKE STARTED OFF STARTER. RAN FINE SHUT IT DOWN AND NOW IT WON'T START IT SOUNDS LIKE IT ISN'T FIRING
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Right now the machine won't start, correct? Does it crank but not fire? Do you have spark?

Your first problem may be charging. The easiest way to check the charging output is to put a volt meter on the battery when the machine is running. You should have between 13.5 and 15 volts at idle. Rev the machine to around 4000 rpm and the voltage should stay under 15 volts, if not its overcharging. If your not getting the correct voltage you will need to diagnose to find the faulty part. Just remember to make sure the battery is fully charged before you do anything else or you'll get false readings.
Do you have a shop manual for the TRX400 charging system ..?
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