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What causes Pinging?

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Old Apr 1, 2010 | 06:15 PM
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Lonewolf176
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Originally Posted by masterblaster
Yeah Glider I know the tune is off and plan to go see Ed out your way as soona s I get a few weeks in twon, travel alot for work. I am wondering if I am doing a lot of damage and what that damage is. We dont have any good tuners here in So Fla, adequate but not good.
You have one of the best tuners in Clermont, way better than adequate. The reversion on these 107's is brutal right where you are experiencing the ping. The bike needs to be tuned. I have attached some afr lines from my HQ's107. You can see where the lean spot is. Depending on what your cu.in. is set at in the tuning constants you could be leaner at 2750 or richer at 4000. As for running octane booster I think that can wreak havoc on your o2 sensors which will make it run even leaner.
 
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