That may be a good thing. The HRC recommended setup lists a 0.6mm base gasket for the front cylinder to prevent detonation. I cant remember off the top of my head, but I believe the difference between the H and L head is very close to 0.1mm. Someone may have put the H head on there to get the same effect.
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Paul Herr
'88 FZR4/GSXR/YZF Frankenbike
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