Timing a Kohler K321

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coinman66

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reynoldston said:
You adjust the points when they are fully open. It fires when they do open and you want the piston around .050 BTDC at this point or also that engine must have taming marks. Not that big of a job to check the key just remove the flywheel. I find then the keyway is striped it doesn't run at all. Just why do you think the key is striped, did you hit something or take it apart and didn't torque the flywheel proper so check it out. Because of the backfiring is the reason I think more of a valve adjustment and also you said the engine has a lot of hours on it.
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I will go ahead and check the valves before the flywheel key.
 
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coinman66

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Ok just adjusted valves. Exhaust is supposed to be .017-.019 and I could fit a .022 in gap. Intake is supposed to be .007-.009 and I could get a .011 in gap. Both adjusted now. Also I have the head off and I get some piston rock in cylinder. Suppose this could be the problem too? There was quite a bit of oil in crankcase chamber. Maybe this is from valves being off? Not sure but I will try and start tomorrow.
 
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