Question about Kohler CH25 PA-CH730-0040 Command Gasoline Engine

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Kohler small engine problem

I have a 1996 Kohler Command 15 hp in a John Deere lawn tractor. It starts fine but if throttle is placed lower than full it dies. Or at full throttle, blades engaged, engine dies. If left at full throttle after a minute or two engine dies, but if choke is placed on, engine will continue running for another minute then dies. Will not hot restart, but 15 minutes later will start up fine. Had a similar problem 10 years ago and it was a bad ignition module. Or is this some kind of idle speed/choke problem? Thanks.

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1989 Kohler 20 backfires through the exhaust. What are the possible causes?

Posted on Jun 11, 2011

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Posted on Sep 20, 2009

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You should have a shop check for a blown head gasket. Have them do a compression test and then a leak-down test to confirm this.

Posted on Nov 21, 2013

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SOURCE: John Deere Mower Engine Issue

HAVE YOU CHECKED THE CARB AT ALL? LOOK AT THE LINKAGE & MAKE SURE IT MOVES FREELY! IF CARB CHECKS OUT MAKE SURE GOVENER IS ADJUSTED RIGHT!!

Posted on Sep 10, 2009

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1 Answer

ADJUST THE GOVENOR ON MY LT 155 John Deere lawn tractor


This should be Kawasaki engine; although, it could a Kohler. The IPL on this doesn't specify which engine it has. It would nice if it did where I could look the engine's service manual but the following should be what you need.

You place throttle in full throttle position. You need to watch the linkage at the governor shaft for which it turns as you go to full throttle then you would continue turning the governor shaft in that direction until it stops. From there you tighten the retaining bolt or nut and you should be good to go.

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I have a john deere 285 lawn tractor that smokes and cuts out at high throttle. It will idle though. The fuel pump will squirt accross the garage so its fine. I have taken the carberator off and...


It sounds like it is too rich in fuel at full throttle.
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John Deere Mower Engine Issue


HAVE YOU CHECKED THE CARB AT ALL? LOOK AT THE LINKAGE & MAKE SURE IT MOVES FREELY! IF CARB CHECKS OUT MAKE SURE GOVENER IS ADJUSTED RIGHT!!

Sep 05, 2009 | Kohler CH25 PA-CH730-0040 Command Gasoline...

1 Answer

Only idle


Take that carburetor apart and soak in carburetor cleaner and run a small wire down each passage and blow out the passages with compressed air.

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