testing regulator

Information and questions on GL1200 Goldwings (1984-1987)
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Posts: 74
Joined: Sat Sep 29, 2012 6:31 pm
Location: rycroft,alberta,canada
Motorcycle: 1985 gl1200 limited edition
1980 gl1100 interstate
1982 Aspencade gl100

testing regulator

Post by petarm1 » Sat May 11, 2013 7:14 am

what is the best way to test if the regulator is still functioning

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Motorcycle: 1988 GL1500 I
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78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
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84 GL 1200 I

Re: testing regulator

Post by virgilmobile » Sat May 11, 2013 12:11 pm

While running the engine.
A good regulator will provide enough power to run the bike and charge the battery.
A DVM is the best meter to use.
Measure directly across the battery lugs.
Engine off....average 12.5 volts.
Engine running 13.1 to 14.5 volts depending on the condition of the battery and rpm.
At a idle,it may drop to around 12.5 or so but pick right back up as the rpm is increased.
With all the mods,my 84 would show 13.2 at a idle and peak at 14.4 volts.

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