787 piston selection

[newseadooguy]

I am rebuilding my 96xp and am not sure how to go about selecting the right piston size for the new setup. Can someone help? Thanks

 

[timmyboy76]

if you can clean the top of old piston enough. it'll say the size, otherwise, depend'n if jugs get honed/bored, then machine shop will "mice" the walls, and let ya know....:cheers:

 

[newseadooguy]

I was able to clean the top of the piston to see that it is a std. 82mm. The reason I am rebuilding is because my compression was hitting only about 125psi in both cylinders. The cylinder sleeve looks like it is in very good shape. Do you think I can install a new piston kit of the same size and regain the missing compression? Thanks for your help on this!