My suggestion is to take the pump off and inspect, three bolts on pump and one for steering. I replaced my intake grate and it's a 3 hour job to take off. The three intake grate bolts have nuts on the inside, so you have to take the ski apart to access them.I just bought a 2up spark last month, took it out to the river this past weekend, and after possibly sucking in some rocks, it stopped working properly. I pull the throttle, and the engine revs, but the ski barely moves, not even fast enough against the current of the river. I ended up having to tow it back to the ramp with my VX Sport.
I've done a little googling and some people mention that it could the wear ring being destroyed. I have been looking at it from every angle I can with a flash light, but I can't seem to see any problems with it. It doesn't look busted or even cracked. The impeller looks like it's in good shape as well. I can't figure out how to get the bottom intake grate off to give it a closer inspection. I am using a ratchet with a 13mm socket, but the bolts just spin forever.
Does anyone have any ideas as to why the bolts don't seem to want to loosen? I can turn them in either direction and am met with the same amount of resistance, it doesn't feel like the bolt is tightening or loosening.
Am I on the right track trying to pull the intake grate off to give it a more thorough inspection?
I had oone of my skis suck something up last weekend and I just knew it was the wear ring, I pulled to shore and inspected, wasn't broken. Wouldn't get on plane, finally I nailed it a few times and whatever was stuck came right out