But as long as you realize the following may potentially wreck your engine, here are some options for you.
-Kohler part # 24755125-S is the part number for the high altitude kit for the CH20 engine.
Available at Opeengines .com
-Take a dremel tool and enlarge the bore of the carb to increase air flow.
-Drill an air passage past the carb and connect a hose with an adjustable valve on it to introduce more air into the mixture.
-Run it without the air filter.
-Loosen the carb mounting hardware to create a vacuum leak.
OR
-Have it run on a Dyno
-Hook it up to an exhaust analyzer
.
Unless you wire your governor open and do a full throttle shut down reading your plugs will only tell you what is happening part of the time when you are putting around.
If and when you put a heavy load on the engine you need to know there is enough fuel in the mixture to prevent a meltdown.
I have melted eough pistons into little marbles when racing to tell you this from experience.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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