My jet ski engine runs great. the problem is it will act like it is going to take off in the water then only move 5 mph or so. I changed out the mid shaft with what I thought was the coupler because I seen on a forum where that could be the issue. Any help on this would be awesome. Thanks in advance.
What does the rpm do ?
If the rpm goes up and you do not move, it is probably cavitating, and need to check for obstructions and impeller to wear ring clearance.
The rams do go up. I have checked for obstructions and there are none. I'll look some stuff up to see what to the clearance should be when I check the impeller to wear ring clearance. Thanks for the information.
on your 95, have you replaced the wear ring? called to a yamaha dealer, they say they do not make wear rings for this particular jet ski. would you have to just buy the wear ring and housing as a complete assembly?
I haven't changed it yet but I'm going to order one and see if it fixes the issue. That's what most people say it is. It is just a rubber ring though. You have to replace the entire part from what I can tell.
Wear rings are either stainless steel or nylon. Your would prob be stainless and the old one has to be cut out.
Impeller clearance should be like .008 to .015, give or take 1 or 2 thousandths. Need to check it in at least three different locations around the wear ring to make sure its half way even.
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