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Knock? Ping? 140-160

posted by  rawits on  Tue Nov 3 12:59 CST 2009
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last visit: Sun Aug 3 12:32 CST 2014
[RELATED]

Some of you have helped (B20P, Phil S.) me sort my new B20E to a point where it's a daily driver. Addition of an AFR meter has helped me jet the Mikuni's a little better so I can run 91 gas.

I think I hear a couple of pings near bottom in second and third, about 2500 RPM when accelerating, like clackety clack clack...vroom ? I run steady 12.0 to 13.5 on the AFR, with leans at 14.5 to 15.3 at high end, but I don't hear the noise up there...

Is this possible?

Is there anything available that will sense knock; like a meter...? Pretend I'm deaf, I am a little from working in the corrugated box plant as a young man...






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