kohler magnum18hp wiring fuse

I was wanting to know how u can tell a 15 amp stator from a 25 amp on a kohler magnum 18 hp engine . mine is wired right and blows a 15 amp fuse. Thanks
 
I have a KT19 which is essentially the same engine besides mine has points (yours doesn't) and yours has an oil filter and mine don't. I replaced the fuel pump on mine and dropped one of the fuel pump bolts down behind the flywheel, grabbed another out of parts bin and finished that job, and as soon as I started the engine I noticed it no longer charged, I tried to engage my electric PTO clutch, which is dead, (worked fine before the dropped bolt) and immediately blows a fuse as soon as it makes contact, let alone push the fuse into its holder. I know what's wrong with mine, and I have to pull the engine to fix. may not be the same reason but like mine, you obviously have a short somewhere.
 
If the parts book for your model/spec number does not say which you have then I have no idea.
You may be able to tell if you can still read the part number on the regulator.

that said:

Where is the fuse? what is the voltage doing. You put a volt meter on it didn't you?

How good is your battery?

You say its 'wired right', but is some component-on either the engine or the chassis-shorted? My first thought if its blowing fuses that some component is drawing way too much current.

You don't say what its on but If there is an electric clutch, I would check that first. Usually should draw 2.5 to 5 amps. If you check resistance, should be more than 2.5 ohms in the windings.

I guess that regulator is mounted in a metal cover. If it happens to be in a plastic cover, does it have a ground strap or ground wire to the regulator case?
 
The ones I have seen for the low amp models are like only 1/2 of a stator. Very small and as said, some have fewer magnets. Strictly a trickle charger set up. You do know that those magnets are plus minus plus minus all of the way around. You should have an even count of them. That means none missing. The one on mine is most of the way around the fly wheel and the 25 is a monster. Looks as if you cut part of a home generator field and glued it in there. Might be time to remove the fly wheel and take a look. The field should not read to ground and only have a few ohms with a digital meter. When the engine is running pretty fast you should get somewhere around 22 volts AC on the two wires from the stator. With a good battery you should get 13.5 to 14.2 volts DC out put to your battery. If your regulator blew up or shorted out,,,, most likely took out the stator with it. Kind of sucks but you know that already.
 

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