* cylinders widened
Just make sure The machine shop is familiar with 2 strokes!
Make sure he uses wiseco piston clearance.
You don't need to change your jetting for that, but make sure you warm it up with wiseco in there... versus What you did with the stock Pistons.
All this, assuming the old pistons look good and you didn't have a jetting issue before. Do a leak down test when you're done!
Define more compression