1996 daytona 770.I was flying down the river when all the sudden the jet ski quit pumping water. I was stupid and the motor got hot. I cleaned about 2 pounds of sand out of the screen the next day. I took it back out and know it pumps water fine put acts like its running on one cylinder. It will only go about 20mph and acts sluggish. i did a compression test. 135 on one cylinder and 95 on the other. any help would be appreciated.
blown head gasket?
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Re: blown head gasket?
Replace the gasket with a new one and try another compression test. You might have found your problem.
I'd also keep an eye on those pistons. There's not a lot of wash on the tops indicating a lean mixture. Could be from getting too hot from lack of water, or something else.
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Re: blown head gasket?
Originally posted by alexb757 View PostReplace the gasket with a new one and try another compression test. You might have found your problem.
I'd also keep an eye on those pistons. There's not a lot of wash on the tops indicating a lean mixture. Could be from getting too hot from lack of water, or something else.
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Re: blown head gasket?
well, that didnt work.F! it is still doing same thing. the motor sounds good. It just pushes threw the water at 4.5 rpms and about 20mph. I met a guy at the boat ramp and he believed it was the wear ring is bad. I did clean about 2 pounds of sand out of it after it broke down. any ideas?
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