Originally Posted by TCOLLINS
Cool. I will wait another year. I got the sled for free from someone so I don't know what was done. I did find a circlip under the hood. I assume new pistons somewhere along the way.
An easy way to take a peek at the piston, piston dome, rings and cylinder wall is to remove the exhaust manifold and shine a flash light into the cylinder. Move the primary clutch to move the piston up and down so you can see the entire piston and cylinder wall.
For what itís worth... We just replaced my buddiesí base gasket a few weeks ago and everything (piston, rings, cylinder) looked good. Two weeks later he seized the engine. We havenít opened it up yet, but we found metal deposits on the piston dome (PTO side). This suggests something broke off (ring, seal, bearing...) and was trapped in the cylinder. He had roughly 4000K on this top end and 7500K on the sled. So... even though everything looks good, the age of the engine, how you ride it and parts used (oem or other) determine the life of the engine. Hopefully you got a good one
Good luck out there!