after running for about 10 minutes the ski starts to bog down as the exaust fills with water, and the spark plugs are wet when removed, i have replaced the cylinder head gasket, all the gaskets in the exaust system, including the robber seal in the exaust box, stripped the carburettor,replaced diaphram but the problem still exists.
Compression in each cylinder is 135psi

mdm, October 2008

i had this problem when i owned a 1995 kaw 750. it turned out that the problem was nowhere near where i was looking. my fuel cap had a tiny crack in it and water was getting into my fuel tank causing very similar symptoms to the ones you described. that might not be your problem, but i just thought i would throw that out there

motor boater sv, August 2009

Had my ski running for 30 seconds, come to it a day later an now there no spark...

Any ideas?

Thanks

Matt, May 2009

Leak down test the motor. Are the pkugs wet with fuel or water?

Jay Smithe, April 2009

sounds like to much fuel to the carb, try using smaller jets in the carb, get the pop off pressure checked, you may need new springss aswell.

pumpwash, November 2008