opinions please

[cto1]

I have a 1998 Seadoo Challenger 1800 that was in a garage for 4 years before I took it over. The gas was half full and 4 years old. I do not know if any stablelizer was in it. The first time I took it out it ran fine for about 5 minutes and then it really started having a hard time. Engine spitting and sputtering. 1 engine would be at 3000 rpm and the other would be at 6000. Then they would cut off. Changed spark plugs on the water and it ran fine. I had finished filling up the tank with fresh gas before I went. I went back to the lake this weekend and the thing worked great for most of the weekend. I have got back down to about a half of tank of gas. The same thing again happened. I put new plugs in again and it worked fine. My question is do you think I have another problem or is the frequent plug changes due probably to the old gas that is probably still in the system? I plan on filling it up again before my next trip so hopefully most of the old stuff in the tank will be gone. Thanks for any advice.

 

[kustomkarl]

I would change the fuel and clean the carbs. Any sediment in the old fuel is now in the carb internal filters. Do you have a seadoo shop manual? If not here’s an idea for you. You could join as a "premium member". As a premium member you can down load a authentic seadoo manual from the seadoo manual library. In the library is a variety of manuals for almost all years and models. You can view as many as you like on line as a PDF file, or download it and print it for your personal and private use. There are operator manuals and repair manuals for you to do your own repairs on your seadoo. The repair manuals have everything from troubleshooting, repair procedures to winterizing. It contains wire diagrams torque specs and pictures for disassemble and assemble instructions. In the spec sheets it tells everything needed to maintain oil changes, spark plug gaps, carburetor rebuilds and impeller wear ring tolerances. Click on the "Seadoo Manuals" link at the top of the page for more details. If you need any help or get in a jam, we are always here to answer your questions too. Premium members get priority when it comes to getting quick detailed answers.


Karl