Question about 2000 Honda VTR 1000 SP-1 (RC51)

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Charging problem Motorcycle

My ZZR 600 isn't charging 'properly'.Whats happening is the battery with the engine off is reading 12.10v and when you start the bike and rev it ,it reads 12.17-20v.If i put the lights on then there seems to be no charge going into the battery at all and my multimeter reads 11.98v (even when you rev the bike)

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You need 12.6 to turn on the regulator to allow it to charge at 14.25..and than should read 13.75 on shut down..till the battery cools back to 12.6 no battery needed

Posted on May 11, 2013


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Posted on Jan 02, 2017

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SOURCE: charging problem on 2002 929 rr1 blade

I'm thinking your battery is the wrong ah. 8.6 for that type motorcycle is quite low. I would expect around 12 - 14 ah. Actually you should not be draining the battery though. The problem may be in the alternator assy its self. Have you checked all three legs of the charging system coming from the stator? I have found the stator to be the culprit many times in this situation. The bike should not be draining the battery at all if the alternator is charging correctly. What was the oem battery ah that you replaced?

Posted on Nov 30, 2008

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SOURCE: Starts with fully charged batter ( new ) aournd

Needs statter or regulator , statter is on left side on the end of crank Mopar kenny

Posted on May 20, 2011

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Good luck my friend,


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try the battery test first and then see if its charging from regulator.if both of these pass then it is very likely the relay.although do not rule out the possibility that the solenoid on the starter could be sticking a bit.hope i have been of some help.

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