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Repair guides and support for motorcycles manufactured by Suzuki Motor Corporation.

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Battery not charging and tested stator and rectifier regulator

I desperatly need help my battery on my 1999 Suzuki gz250 isnt charging up anymore and i have no clue what it could be, i have checked the stator and rectifier regulator, the test on the stator showed not grounded and pin to pin showed 00.9 on all three pins and the rectifier showed 0, 0, 0 , 395,413,406, 0, 0, 0, 415,389,415, so everything seems to check out i also checked the stator while running it showed 50 to 60 while on choke at about 2,000 rpm, also checked fuses, and the battery is only 2 months old it worked great for awhile then all of a sudden started not charging, not sure about the previous battery when i bought the bike it was dead and looked old, im not sure what else to check, any help would be greatly appreciated

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James Ross how did you check your rectifier and what are those values? what voltage do you get on the battery clamps with the engine running?

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1 Answer

You need to check how much voltage the battery is receiving when the bike is running at 2000 RMP and 5000 RPM; It should be anywhere between 12.6 volts at 2000 RPM to 14.6 volts at 5000 RPM approximately; It can be a little up or down; To do this place the selector to the 20 volts on the multimeter, then place the red probe on the positive terminal of the battery and the black probe to the negative terminal of the battery or any place on the motor bike which has a good ground

If there is not enough voltage being received at the battery terminal, then you need to check the Regulator rectifier (RR) to see if it is good; Google on how to do this test

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