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That’s cool! Remember, increasing the bore raises the compression ratio anyway, worth calculating what it will be. Also, I always measure piston to bore clearance just to check the hone job is good.
Get the head looked at when you have it apart too, valve seats and maybe a little gas flow? Should rip!
Jung
Something arrived for the DR350…..
(400cc/82mm ATV kit: cylinder, piston, pin, rings, gaskets… pushes to 376cc)