Not that I have found yet a 2 stroke is different from a 4 stroke a 4 uses valvles to breath A 2 uses ports the cut outs in the piston liner A car gauge has to have the valves closed to find the proper pressure inside the cylinder after a few strokes of the pistonsorry if this has already been discussed but i searched and couldn't find what i was looking for. is there a way to modify a compression gauge for full size autos to use on a model engine?
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