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Kohler 12 hp


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#1 LuCarp06 OFFLINE  

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Posted January 09, 2018 - 09:35 AM

I have a 12 hp kohler on a 1967 Jacobsen Chief 1200. Yesterday I noticed that the exhaust was glowing red while I was plowing. This has never happened before. I have had the tractor for 2 1/2 years. 

 

Any thoughts?



#2 KennyP OFFLINE  

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Posted January 09, 2018 - 09:44 AM

Sounds like it's running a little lean at RPMs.


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#3 Trav1s ONLINE  

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Posted January 09, 2018 - 12:03 PM

LEAN!!!

Do that too long and the result could be costly.  


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#4 LuCarp06 OFFLINE  

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Posted January 09, 2018 - 01:44 PM

Its starving for fuel?


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#5 KennyP OFFLINE  

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Posted January 09, 2018 - 03:10 PM

Its starving for fuel?

Yep. Need to open the high side adjustment a bit more and get rid of that! It can do all kinds of damage that way!


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#6 Mark 149 J. ONLINE  

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Posted January 09, 2018 - 05:33 PM

While you're at it, make sure your cooling fins and shielding is getting good air movement.  


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#7 EricFromPa ONLINE  

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Posted January 09, 2018 - 11:55 PM

Ya have to richen the mixture a bit in the winter. I usually have to turn my mains out between 1/4 and 1/2 a turn.

 

My snow blower I tuned up in the summer I had to re-tune when the temps dropped. It was running very very lean and throwing sparks and fire out the exhaust.

 

A little Water in the float bowl makes them run extremely lean. This time of the year it freezes in the bottom of the bowl really quick. Doesn't take but 1 drop of frozen water to plug the main nozzle.


Edited by EricFromPa, January 09, 2018 - 11:59 PM.

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#8 LuCarp06 OFFLINE  

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Posted January 10, 2018 - 08:17 AM

Thanks guys! 



#9 crittersf1 OFFLINE  

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Posted January 10, 2018 - 10:09 AM

Melt down






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