Posted on Wednesday, February 27, 2013 - 04:23 pm:
The details are in your electrical diagnostic manual, but you use a multimeter, and disconnect the stator from the voltage regulator, then you test the pin to pin AC voltage on all 3 pins. I forget the exact spec, but if you are not seeing at least 40 volts on each of the 3 pins then you have a problem.
The first connector coming from the stator is on the left side, under the rider's seat - 4 position, three populated. There are three pins in the shell, one each for phases A, B, & C. When repalcing stator, pull pins/sockets from plug shell - upon re-assembly, there is no polarity. Just make sure you don't put a wire in the ONE unpopulated position.
Power off tests: around .8 Ohms phase to phase. Any phase to ground - Infinite resistance, OL, totally open circuit.
Motor running - AB, AC, BC(see 2nd line in my post) 37-53 VAC at 2000 rpm (IIRC, will check and add exact numbers tomorrow). books at work...
It should be noted that you really do need to check all three combinations. The voltages seen should be close to being the same on each combination. You are measuring a vector summation of all three legs each time.