Mariner 40: how do u test black stator?

RickyD2227 · #1 July 22nd, 2009, 06:45 PM

I have a fried rectifier/regulator on my 1995 Mariner 40 electric start with the black stator. I need to test resistance of the two yellow leads but my Clymer manual is unclear on how to do this.

I get about 80 ohms when hooking a digital meter across those leads and the stator tests good on each yellow lead with no short from the coil to ground.

Do you know how to test each yellow lead/coil independly for resistance: low speed coil = 5700-8000 ohms, high speed coil = 76-80 ohms?

If my stator is pooched and I installed a new rectifier/regulator, could it be damaged on start-up?

bhile · #2 July 22nd, 2009, 10:43 PM

80 ohms is high. It should read .16-.19 ohms. But before you rush out and buy a stator, double check your meter. It should go to 0 when you short the leads together.

RickyD2227 · #3 July 23rd, 2009, 03:09 PM

Thanks Captain. I have the 4 cylinder engine -early serial #- for which Clymer says resistance is .1-.5 ohms. I will retest across yellow leads, ensuring meter zeros first.

Does anyone know if replacing the regulator (to a stator that reads high resistance but is not shorted to ground) will burn the new regulator?

James R · #4 July 24th, 2009, 07:15 PM

A bad stator wont hurt a new regulator.