What i've seen people do is tilt the jetskie sideways on land, remove the spark plugs and crank the engine to remove the water as already suggested.... a mod to that technique that i've seen is putting the finger on the spark plug hole and leaving a small space for the water to come out, that applies pressure on the compartment and forces the air+water out of the piston at a higher rate.... The process is done to each piston ...
The only problem with cranking the engine with out the spark plugs is that you gotta have a fully charged battery, because you can really end up draining your battery..
The only problem with cranking the engine with out the spark plugs is that you gotta have a fully charged battery, because you can really end up draining your battery..