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Engine bogs down, hard to start and keep running...need help!!!

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awolfe04

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I have a 91 rdxi seadoo jetski. Let my dad take it out last weekend. He said it was running great for the first half of the day. Then it all the suddend started to bog down. It wont open up all the way. The gauges worked and all that cept speedo but i still have to fix that. So I look at the motor, start it up, it was ideling fine, ran half throttle fine, but when i rev it up to full blast, it shot out blue smoke and sounded like it was missing. Now i can barelly get it to run. Checked/replaced spark plugs, checked fuel filter and it was clean. Checked all hoses and everything looked good. Unhooked battery to maybe clear the computer but nothing. Maybe a fuel pressure problem? It is a 2 stroke fuel injection motor. Also the gauges do not work anymore. I checked all fuses and electronic conections and everything is good. Nothing was in the impeller. Also if i do get it to run, ill get a beep while motor is runing, its bout a min. after i get it to start.
Could the key go bad? is that possible? I need help, wanna get it running again before summers end.
 
What's a 1991 RDXI? Do you mean a 2001 RX-Di??

Before we can help... we need to know what we are working on. (Post a pic of the ski)
 
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