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jlasater

K341S knocking

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jlasater

When under a heavy load (like snowblowing), the K341S in my 716H will start to ping or knock. I'm running non-ethanol premium fuel in it and pulled the head off last summer and cleaned any deposits out so the combustion chamber is clean.

I might add, when it pings, if it's bad enough it will kick black smoke out the exhaust.

What else should I check?

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CooterDavenport

The factory point gap is a baseline to get the engine running. You can adjust the timing on these by closing or opening the point gap to where the engine is happy. I would check the timing with a light and see if it's correct and go from there. I had one that was doing the same thing, after I adjusted the points to get the timing right it never ran better

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jlasater

I have a Kohler manual, but it doesn't actually show how to check the timing. I have a timing light. Can any of you shed light on how to do it? Where is the timing hole I need to be looking for?

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CooterDavenport

There should be a hole in the lower part of the blower housing. I believe sometimes theres a plug in it. I can't remember which side it's on though. I have a manual at home with the destructions in it. I can check later unless someone else knows

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CooterDavenport

With the engine running above 1500 rpm you should be able to see "SP" through the sight hole with the timing light. It should be a small 1/2" hole on the left side of the blower housing.

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