elec probs

rock67

New Member
Feb 21, 2011
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When I bought this project
The headlight was very dim even at high RPM
When I check thee voltage at the light I am only getting 6volts
even when the light is unplugged and not under a load
Is the lighting coil in the stator bad or regulator?

IMAG0168.jpg
 
Offhand, I'd say that your problem is the votage regulator, but rather than start replacing parts to try to solve the problem, do this: Take a volt meter and test your lighting coil under the flywheel. You can find the procedure and resistance specs in any service manual (perhaps somebody else can rememember the spec).

If the lighting coil passes a resistance test, check all your wires, connections, and the handlebar switch for rust/corrosion. Be sure the ground wire at the voltage regluator is tight. If the light doesn't burn any better after all this (still not getting 12V), time for a new regulator. Hope that helps! Remember that you won't get 12V to the light (or tester) with the engine idling, even if everything is working properly. You'll see 7 or 8 volts until you rev it up and the coil can put out more juice.
 
Get an Ohmmeter or digital multimeter and read the stick the two test probes in the following wires: Yellow/Red and Black, place the reading to Ohms R200. It should give a resistance reading between: 0.16-0.24 Ohms, if it turns out your charging/lighting coil is ok, then next step PM me your mailing addy and I'll send you a voltage regulator. Only stipulation you pay the 5.24 shipping. I:I
 
Cool guys thanks for the quick replies
I will test this as soon as I get home from work