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25 hp Kohler
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=10849
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Author:  postalpaul [ Mon Jul 12, 2010 6:06 pm ]
Post subject:  25 hp Kohler

Another buddy of mine's got one of them Kohler 25hp gdlt. He say's to me--man my motor aint been runnin right! Alot of noise on the top end of the motor, I ask him when is the last time you checked the valve adjustment??? Never was the answer motor has over two hundred hour's on it!! I guess I will be setting valve clearance this weekend. Am I safe to guess .006 intake and .008 exhaust?? At top dead center or 1/4 past like a Briggzilla?

Author:  50fps [ Mon Jul 12, 2010 6:27 pm ]
Post subject:  Re: 25 hp Kohler

Nope.

Valve lash is set by a torque spec due to having hyd lifters. This spec is achieved when the lifters are bled down and by applying torque (with a torque wrench) to the rocker arm mounting bolt in the center. Is he running the mechanical fuel pump?

Author:  postalpaul [ Mon Jul 12, 2010 7:05 pm ]
Post subject:  Re: 25 hp Kohler

yes on the mechanical fuel pump

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