Mariner 150 1991

R

royal3397

Recruit
Joined
Jun 29, 2009
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3
I have a 1991 Mariner 150 Mag. II that has had the voltage regulator removed. This was before I acquired the engine. The SN for the engine is 0D007837 which calls for a large voltage regulator PN 18736A21. There is a small rectifier located on the rear top of the engine that should not be there by what I can determine via the wiring diagrams. My question is, if I install a new voltage regulator, should I remove the rectifier?

The system puts out approx 16.7 volts without the votary regulator and I suppose this is harmful to the battery.

Thanks,
royal3397
 
j_martin

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: Mariner 150 1991

I suspect that the stator was also changed out to a 16 amp, or else it would blow the top off'n yer battery in short order. The flywheel also would have been changed to the 16 amp.

Is there a pattern of bolts on the top of the flywheel? If so, it's a 16 amp. If that's the case, it won't hurt your battery as long as you keep it maintained. It will use some water.

If you need the 40 amp system, you can buy a used 40 amp flywheel, and get a CDI dual regulator conversion kit with the stator and regulators, as well as some harness components.

hope it helps
John

PS Please delete the duplicate thread you generated.
 
R

royal3397

Recruit
Joined
Jun 29, 2009
Messages
3
Re: Mariner 150 1991

Thanks, it does not seem to cook the water out of the battery, but I will keep an eye out. I will also check out the flywheel.
 
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