I was boating the river yesterday and, after stopping for a minute at idle in the middle of the river, I gave it some throttle and no power- nothing. the motor would rev up, but no power aT ALL. I jumped on the stomp grate several times to clear any obstruction and that didn't help. in short I had to be towed back to the launch. I checked my pump and engine at home. It starts fine, but idles high at about 2000 rpms- just like after the incident. I looked over the pump and engine to see if there were any obstuctions, but nothing. I turned on the engine at idle and the impeller doesn't even turn!!!! could it be a gear stripped, etc. once again the engine turns over fine, but the impeller doens't even turn. no problems like this have ever happened to me before and there were no big hits or anything that caused this. it's baffling why it would even happen! what do you all think happened?? what could it be???? I need help and need to know someone in the anchorage area that could fix it. i get the feeling it could be a pricey fix!?