OEM; Piston pin, piston needle bearings, circlips, intake boot clamp, air filter…. I usually do fuel line and gas cap but the clones looked extremely well built.
make sure you pressure and vaccume test the cylinder head and the fuel system.
When I assemble the saw I knock the crank seals out and clean the bearings till they are absolutely Smooth and no rough spots. They come with a lot of metal shaivings in them….
make sure crank is centered on install and in the sweet spot.
Make sure everything is lubed to the max with oil, and run her 32:1.
It would also be wise to get a OEM carb. The tunes done usually hold.