imported post
roadkingrich wrote:
How can I tell if the regulator is deffinetly bad? I charge it and it runs a few hours, but eventually draws the volts down till the bike dies. Reving the RPM's does not make the volts go up. It has a new battery.
Chances are the regulator is bad as I've only heard of about 3-4 stators that have actually gone bad on a fuelie. I'd test the stator and if it test's good, I'd replace the regulator with a new OEM Shindengen:
http://www.regulatorrectifier.com/catalog/1985-Honda-GL1200-GL-1200LTD-Limited-Edition-Regulator-Rectifier
Don't use an off brand as they WON'T last!! The price on the link is a bit less than half of what Mother Honda want's for one!! Here's the test:
Stator Test
1- First, put the bike on the centerstand. Cut the wires on both sides of the stator connector plug. Strip the insulation aprox. 1/2"-1" back on all three yellow wires. Label each wire A, B, and C.
2- With a multimeter, digital or analog, set to read resistance, check each leg to ground for short's. If no short's are found, (o resistance), you're good to go so far.
3- With the meter set to read resistance, check across each leg. A to B, B to C, then C to A. The reading's should be about 3 ohm's. If you read infinite resistance across any of the legs you have an open winding and the stator is bad. If they read good, keep going.
4- A helper is good to have for this next step. With the battery fully charged and the three yellow wire's separated so they cannot make contact, crank the bike. Have your helper rev the bike to 3000rpm after the bike warm's up.
IMPORTANT!!!
You are checking for AC voltage NOT DC voltage!! Make sure the meter is set to read a minimum of 120vac!!
With the bike at 3000rpm, check leg A to B. Note the voltage.
Then check leg B to C. Note the voltage.
Finaly check leg C to A. Note the voltage.
Compare the three readings. They should be between 50-70vac plus or minus about 5vac per leg. If they read good, chances are you've got a bad regulator.
The reason for the soldered wires?? The spade connectors inside the plastic stator and regulator connectors will over time and exposure to heat will lose their clamping strength and cause a bad connection that will burn, causing charging problems and possible regulator/stator failure. The best solution I've seen is to cut BOTH, (the Ltd Ed has 3),connectors outand solder/hardwire/heatshrink insulate all the wires, preventing any furthur failures
Good luck with her and let us know what you find!!