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I’m starting to think fuel? Adjusted the valves today, they where real loose. She runs heaps quieter but not the fix. I can adjust so timing light is showing tdc and it runs sweet on idle but the valves go nuts when giving it a rev...stationary. I can retard it so it runs like a dog and it will stop the noise at stationary...but drive it under load and the valves rattle. Might drop the fuel and put some fresh stuff in.
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Just so that we are all clear, do you have a problem with noisy valves, or pre-ignition? These are two distinct problems with different noises.
Aaron
