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Discussion Starter · #1 ·
Hello I'm having and issue with my 400ex it isn't charging the battery while the quadrant is running so it only last for a few start cycles then I have to.put it on a charge I don't know what is causing ot to not charge if anyone could help that would be great
 

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Most generally, either the alternator or the rectifier/regulator has failed. Less common problems; wiring, wiring connectors, loose connection at the battery, battery itself is failing and/or improper battery.
 

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The alternator is in the cover on the LH side of the motor. Two quick tests: remove the seat and rear fender - unplug the wiring connector from the alternator at the rectifier/regulator - using a multi-meter, check the continuity between the pink and yellow wires, should be about .5 ohm - check between each wire to ground, should not be any continuity - it it passes these tests, then it a good bet that the rectifier/regulator is bad, but there are other tests that are too involved to describe here that will pinpoint the culprit exactly. That's why repair shops exist.
 
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