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Reload this Page Kohler M18 skip
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Old 02-03-2018, 07:32 PM
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ol'George ol'George is offline
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Originally Posted by DieselDoctor View Post
George - I checked the coil mounting bracket and it is installed correctly with the arrow pointing towards the top of the crankcase.
When I ran the engine this last time after doing the valves and rings. I installed new plugs, this time using AC's. There was no change in the skip but I wanted to read the plug color. Mixture was pretty close as I had mentioned. After running the engine for about 5 minutes on and off, I shut it down, frustrated. I just pulled the plugs and cyl #2 which is left bank facing the flywheel is noticeably darker than #1. This is the plug furthest from the coil too. Now seeing as the motor isn't smoking from a rich condition, is the dark from the misfire or is the #1 plug more white from lean? I know I have said the other fuel system from the 2072 made no difference so what is causing the difference in plug color from side to side?
Anybody got a known to be good coil they're willing to loan for a test? I don't really want to shell out $100 for another coil until we pinpoint the problem.
Doc,
I don't know why one plug reads darker than the other.
Since both plugs fire @ the same time, swap the plug wires to the other sides.
You will have to stuff a old plug wire in the short side boot to get it long enough, just as a test and see what happens,and if the dark plug follows the wire to the other side.
I remember you swapped complete fuel systems, but what carb is on there now? an adjustable one or a non adj walbro?
I have seen some walbro's just cantankerous and exhibit one side giving problems while other side running fine, it defies logic, as it is a log manifold.
I'm assuming you are using the same flywheel in this testing, as the other one has not arrived yet?
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