1.2mm or 1.3mm is still heaps. I'm going to pull my 300 down to 1mm. These things don't rev high. My 200 on the dyno was all over at 9300 & over rev barely touched 10, normally you wouldn't pull that high. The bigger bikes probably don't go past high 8s, maybe 9.
I'll then pull out some metal from the chamber to reduce the compression back down to it's std 12.5:1 which is easy enough to kickstart & suit our 95 gas. My 200 I had raised to 13:5:1 (at squish 1.1 but that was where it ended up).
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