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Kohler generator

Discussion of batteries, chargers, wiring, generators, distribution panels, battery switches, etc.
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Re: Kohler generator

Postby KeithS » January 11th, 2021, 7:03 pm

What are you using to check the speed? I find the easiest way is the frequency since my voltmeter is already connected.

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Re: Kohler generator

Postby KeithS » January 11th, 2021, 7:05 pm

What are you using to check the speed? I usually use frequency since my voltmeter is already connected. RPM is difficult on that model because of the waste spark system, it is firing every revolution and gives false rpm readings.
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Re: Kohler generator

Postby jisster1 » January 13th, 2021, 9:15 am

How do you use your voltmeter to get the frequency?
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Re: Kohler generator

Postby jisster1 » January 13th, 2021, 9:17 am

Also it's not a little bit of RPM's that make it produce voltage. Going by ear I would say I need to get it up to about 4000 to 4500 rpm's to get 120 out of it
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Re: Kohler generator

Postby bud37 » January 13th, 2021, 9:35 am

jisster1 wrote:Source of the post How do you use your voltmeter to get the frequency?


You need a good DVM with a frequency ( HZ ) function available.
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Re: Kohler generator

Postby g36 » January 13th, 2021, 10:30 am

As mentioned many better dvms have frequency but also you could use other plug in items like the (kill a watt meters) that also read frequency or cheaper version similar to this if you don't want to spend more for another multimeter....https://www.ebay.com/itm/Digital-Power- ... 890.l49292
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Re: Kohler generator

Postby km1125 » January 13th, 2021, 11:20 am

jisster1 wrote:Source of the post Also it's not a little bit of RPM's that make it produce voltage. Going by ear I would say I need to get it up to about 4000 to 4500 rpm's to get 120 out of it

I'm glad you clarified this. I was stumped when you said "high idle" and was wondering if you were slowing the engine down from normal speed to get the voltage.

Does this model have brushes? Could you have a worn brush not allowing current to get to the field?
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Re: Kohler generator

Postby jisster1 » January 13th, 2021, 7:33 pm

No it's a brushless generator. I tried again tonight and again if if run the motor at about a half throttle or more I can get 110 volts if I throttle it higher it will put out more volts the minute I let it idle I get only 8 volts.

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Re: Kohler generator

Postby tomschauer » January 13th, 2021, 10:14 pm

Sounds like maybe you have a governor problem. I would get a tach for a 2 cylinder engine and make sure where you are with the RPM. It really should never "idle". It should always be about 3600 rpm. The governor assembly and spring open the throttle further under load to keep it at 3600+/-.
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Re: Kohler generator

Postby jisster1 » January 14th, 2021, 8:48 am

It's not a governor problem. I know what a high rpm is. When I rev it up to get volts out of it, it's at least 4000 rpm's to 5000 rpm's. It should not have to run at a high rpm to get power.

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