I bought a parts saw that has new seals and new carb and intake but the thing was stuck. Never ran since new seals were put in. The piston is either too big or the cylinder is too small. No clearance. Everything looks good though. Cylinder is not perfect as has a few small scores but not bad. Guy that had it said something about a difference between one ring vs two ring top ends as he took jug off another saw. I don't buy that though. Kind of lost what's going on. Any help would be appreciated. Or advice on a better place to post this question