| I've had the same problem as you Hudson. Changing fuels was of no help either. The plug heat range is the answer. Try a C8HS and that will settle things down greatly. That solved the problem for me for the most part. Prior to my heat range change my engine would start easy but would end up rattling under any kind of load then would idle really funny, sometime's you couldn't shut the engine off unless you choked it because it was dieseling so badly. After the plug change my engine would still end up detonating after constant hard running of longer then 15 minutes or so but that was fine because I don't normally ride for much longer then that. Once you get that far into a hard ride on a modified CAG engine I think your looking at problems with the lack of cooling which you just can't do anything about without replacing the head with a much larger finned unit like the Trevor Simpson style heads.
If your still experiencing pinging when you change plugs then you'll need to get rid of your advance timing key.
The bad news is your spark plugs will be more prone to fouling when the engine is cold so make sure you get that plug good and hot to burn off any oil deposits before shutting
it back down.
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Banshee SHO - WHEELIES ARE FUN
"It is better to say nothing and be thought a fool than to open ones mouth and remove all doubt."
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