12 hp single cyl Kohler on a 150 amp welder generator

VicS · Jan 26, 2023

Problem governor absolutely doesn't work.
With carb unhooked, governor doesn't do
anything. Seems unhooked inside. Does
anyone know what I need to take off to get
it apart to fix it. Thanks Vic

wore out · Jan 26, 2023

Governor (some were made of plastic) may have grenaded, or it may simply need adjustment.

You can download the official service manual for FREE at the link below. (.pdf format)

https://resources.kohler.com/power/kohler/enginesUS/pdf/tp_2379.pdf

620 John · Jan 26, 2023

From what I can see in the pic it looks to be a K241 which is a 10 hp engine. Sounds like the cross shaft tab on the governor arm shaft is broken. Take the governor arm off the shaft and unscrew the brass nut that fits over the shaft. The shaft will slide right out if the tab broke. If the cross shaft is still intact then the governor gear might have flew apart. Either way you'll find out pretty quick when you unscrew the brass nut from the block. I rebuilt my K321 this spring and I put a tack weld on the tab to reinforce it.

This post was edited by 620 John on 01/26/2023 at 08:55 pm.

620 John · Jan 26, 2023

I think the cross shaft can be replaced with just taking the oil pan off. If the gear flew apart then the crank and cam shaft will have to come out.

This post was edited by 620 John on 01/26/2023 at 09:11 pm.

560Dennis · Jan 27, 2023

I agree the plastic gears do fail.

Russ from MN · Jan 27, 2023

I was given a lawn mower with the same problem, it was a plastic gear that was broken, possibly from overfilling it with oil. The local part store had the gear for a good price, runs great now!

VicS · Jan 27, 2023

Thanks guys. This really helps. Appreciate
it. Vic

12 hp single cyl Kohler on a 150 amp welder generator

VicS

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wore out

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620 John

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620 John

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560Dennis

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Russ from MN

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VicS

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