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Craftsman Lawn Tractor 15.5 Kohler


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#1 LuCarp06 OFFLINE  

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Posted June 10, 2016 - 08:38 PM

After about 20 minutes of using the tractor it shuts off. After about two hours it will restart, any ideas?
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#2 EricFromPa ONLINE  

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Posted June 10, 2016 - 08:49 PM

Low compression or the Coil is going bad.Kohler coils act like that when they are about to go.Once they warm up a bit they just quit,Cool the coil down and they restart.

 

You might have a bunch of grass and dirt buildup under the blower housing.That will cause the coil to overheat and burn out.

 

I like those OHV Kohler command engines.Real good power and very smooth running.


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#3 LuCarp06 OFFLINE  

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Posted June 11, 2016 - 06:24 AM

It's been a great tractor for 18 years, thanks for the reply

#4 larrybl ONLINE  

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Posted June 11, 2016 - 07:52 AM

In order of cost. Gas cap vent. fuel filter, coil.


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#5 LuCarp06 OFFLINE  

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Posted June 11, 2016 - 04:16 PM

The fuel filter would make that happen. I just thought if the fuel filter was bad it wouldn't run at all.
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#6 larrybl ONLINE  

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Posted June 11, 2016 - 07:31 PM

The fuel filter would make that happen. I just thought if the fuel filter was bad it wouldn't run at all.

Bad or collapsed fuel line too. Just trying to get the cheep fixes out of the way before diving in to the $100 + items that could cause this.


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#7 LuCarp06 OFFLINE  

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Posted June 12, 2016 - 06:57 AM

Appreciate that! I'll take a look today and see what I find

#8 John Arsenault ONLINE  

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Posted June 12, 2016 - 07:10 AM

The first thing I do is determine the issue. When it stalls pull the spark plug see if its wet or dry, just that tid bit of info will avoid a lot of guessing. If its wet you can forget about the fuel filter , gas cap vent , bad or collapsed fuel line. Low compression normally leads to an engine that will smoke a bit , it also should not cause you to shut down like that.

 

 

Keep on guessing guys! 

 

 

I can lean towards the idea that you may have a bad coil and if so your plug should be wet when you pull it.  But I would like to know how it runs before it dies ...does it start to spit and sputter or does it just shut down?


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#9 MH81 ONLINE  

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Posted June 12, 2016 - 07:31 AM

I have had engines that heat up and the valves stick. Cool down and they run again...
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#10 John Arsenault ONLINE  

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Posted June 12, 2016 - 07:46 AM

I have had engines that heat up and the valves stick. Cool down and they run again...

If that happened I bet he would say it turns over really easy when he tried to restart it.


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#11 LuCarp06 OFFLINE  

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Posted June 13, 2016 - 11:58 PM

No change at all when it shuts down, runs fine and them shuts down almost like you turned the key off

#12 John Arsenault ONLINE  

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Posted June 14, 2016 - 06:30 AM

Ok next thing to do is pull the plug when it shuts down. Check for two things...1st see if the plug is wet if so it rules out a loss of fuel issue. Now with the plug out  check it for spark. My best guess at this time is your losing spark. But lets see what the plug tells us.



#13 lrhredjb OFFLINE  

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Posted June 16, 2016 - 05:21 PM

I would put some anti seize on the plug thread before you try pulling a plug out of a hot aluminum cylinder head. Sometimes the threads will be damaged.






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