Whats the right way to check compression in my seadoo?

[01_seadoo_gtx_DI]

Its my first jet ski and i'm not sure what the right way is to check compression. Its a 01 gtx DI.

 

[timmyboy76]

ground plug wires, the nhold throttle open, and crank...

 

[01_seadoo_gtx_DI]

ok cool. Thanks alot!

 

[timmyboy76]

:cheers:......do each cylinder 3 times, to get average. Allow to crank about 5-8 sec.