I have 2 1999 Kawasaki Jet Ski 1100 STX. Both of them have the same problem. They will continuously crank and not fire up. I think its a fuel problem because i did not put stabilizer in before the winter. I cleaned out the lines and pump thing on the rear of the engine, and took out the diapram and cleaned it. If i take the cover off the 3 carbs and spray some gas I can get it to start and run fine. It will start again no problem but as soon as the engine goes cold, it won't start and I have to take the carb cover off and put more gas in. That obviously isn't a permanant solution. Any suggestions?
If the teeter/totter needles are gummy or covered with moisture corrosion it could be the reason the machine is so hard to start. When storing the jet ski's syphon all the gas out and burn it in your car or truck. Even if you stabilize it it wont be good fuel in the spring. Your plastic tank will not rust so remove the fuel. You may be able to clean them up by running a tank of Chevron Techron through them. Before riding we charge are batteries and start are jet ski's on the trailer/lift before dropping in the lake. This saves the battery. It takes more juice to start the boat in the water.
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