Oki doke.
BTW I further cleaned those intake valves when I ground that rough spot on the head.
Taking apart the old head gasket and using on steel layer as a shim for the Chinese kit's
head gasket seems to have resolved my problem.
Tomorrow I do extensive test ride.
First impression of the chinese GN250 kit on us GZ250.
1)Deck height is WRONG. Base and head gaskets are to thin.
*fixed that by shimming the china head gasket with one piece of u.s. head gasket.
2)Steel sleeve in cylinder is thinner.
*I've seen worse. I doubt it would be much issue. But NO overbores for the china cylinder.
u.s. cyl could easily take 1mm or more. More if your nasty.
3)It took 4 assemblies of the engine to learn this information. But now I know it I'm thinking I would suggest the china kit for the $100 I paid for it knowing you will need to take a vernier caliper to the gaskets and shim them appropriately with a dismanteled original gasket.
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