Quote:
Originally Posted by cleszkie
Have you considered that there might be carbon build-up in your combustion chamber that is increasing your compression ratio? Additionally, that carbon can act like an ignition source for fuel when it gets red hot. The increased compression ratio and ignition source from the carbon can cause pinging and/or detonation. I recommend running a good quality top end cleaner, ATF, or water through your carb to clear out any carbon, and take this possibility out of the equation before you do anything else.
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Can you tell me exactly how to clear it out with water? I did the fresh top end rebuild a few months ago so I'm not sure how much carbon could be built up