How I recommend you to measure the Squeeze

Please use 1 mm. or 1.5 mm solder and places it

as you can see on the photo, then turn the piston in top

of course with the cylinder head on

Then measure smallest places on the solder and

you can then change the head insert to the

head insert there come closest to 0,7 mm.

e.g 2.25 insert go 2.25 mm. down in the cylinder

and 2.2 insert go 2.2 mm. down in the cylinder