102 psi of compression

What do you guys recommend for crankcase oil and capacity?

you must mean trans oil ? I like Mobile1 4T 10w-30, 650ml as stamped right near the fill cap
the only oil in the crankcase is the 2 stroke oil at comes in with the fuel
 
I use 650ml of yamalube 10w-40 and premix 32:1 of the Yamalube 2s.

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