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post #1 of 11 Old 01-07-2012, 09:17 PM Thread Starter
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14hp kohler hard to turn over

A friend of mine is having trouble with his riding mower. He got it about 6 months ago, was running and starting fine. Last week he goe's to start it after letting it sit for a month. Didn't want to turn over so he pulls the plug, it turned over but was stiff. After cranking it a while with no spark plug it loosened up a bit. He put the plug back in and got it running. Now it starts and runs fine when warm but when its cold, it has a hard time turning over. Any thoughts about what may be the problem? The battery is good. Starter appears to be ok. I think the model of the engine is a K321. Any ideas as to what the problem might be?

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post #2 of 11 Old 01-07-2012, 10:01 PM
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Re: 14hp kohler hard to turn over

Change the oil and spark plug, New Battery, Adjust the points.

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post #3 of 11 Old 01-07-2012, 11:31 PM Thread Starter
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Re: 14hp kohler hard to turn over

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Originally Posted by larrybl View Post
Change the oil and spark plug, New Battery, Adjust the points.
I don't know about the plug and points, but I know the oil is fresh and the battery is good(starts all his other riders no problem) Should be turning over easy seeing how most of the older kohlers had a ACR

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post #4 of 11 Old 01-07-2012, 11:37 PM
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Re: 14hp kohler hard to turn over

My K321 has an ACR, but beats me on how to trouble shoot it, as mine is working I will follow this thred for future reference.
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1990 18.5 Craftsman (RED)
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post #5 of 11 Old 01-08-2012, 03:56 AM
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Re: 14hp kohler hard to turn over

Is there PTO dragging at all? If its a Hydro..cold hydro fluid is thick and if the pump is not perfectly in neutral it can drag the starter down.

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post #6 of 11 Old 01-08-2012, 04:01 PM Thread Starter
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Re: 14hp kohler hard to turn over

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Is there PTO dragging at all? If its a Hydro..cold hydro fluid is thick and if the pump is not perfectly in neutral it can drag the starter down.
Nothing is hooked to the pto so I don't think its dragging, but it is hydro so maybe thats causing the problem.

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post #7 of 11 Old 01-08-2012, 08:05 PM
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Re: 14hp kohler hard to turn over

How hard would it be to disconnect the hydro?

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post #8 of 11 Old 01-08-2012, 09:00 PM
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Re: 14hp kohler hard to turn over

If youve done all the tune up stuff , check the valve clearance. The arc run off the cam and if the clearance is to large it wont open the valve enough. If you think yopu have a issue you can pull the head and watch or measure the opening .. check the book. if you have points make sure they are good shape ..
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post #9 of 11 Old 01-08-2012, 09:04 PM
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Re: 14hp kohler hard to turn over

Brushes or bearing in the starter may be worn......

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post #10 of 11 Old 01-08-2012, 09:18 PM
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Question Re: 14hp kohler hard to turn over

Main battery cable conections clean & tight??


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post #11 of 11 Old 01-08-2012, 09:30 PM
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Re: 14hp kohler hard to turn over

You could also try jumping it directly to the starter, I presume. That might help you rule out some wiring issues.

If it turns over slowly even with the plug removed, that would make me suspect either a problem with the starter, or some sort of parasitic drag, like RED-85-Z51 mentioned. For that matter, with the plug removed, how does it rotate if you try to turn the engine by hand?
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