Which Base Gasket to use- 787 Stock

[easygoin4]

I am going thru my engine, bone stock, broken rave valve was reason for tear down.
I bout a gasket kit that came with 3 base gaskets, (2) have 6 holes, one seems a little thinner, and a thick one no holes that has some sort of sealer built in, appears to be where the cylinder hits it.

Which gasket do I use..
thanks

 

[mikidymac]

Download the manual and check your squish. Each engine is different so you have to check yours, that’s why Seadoo makes different thicknesses.