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  1. #1

    Unhappy Help: 1999 gp1200 trouble

    I just recently bought my gp1200 it has 43 hours I’ve put about 3 hours on it it ran perfect when I bought it. It died the other day in the water my fire extinguisher exploded inside the hull I opened up the carbs they didn’t look too dirty the powder didn’t get too much into them but it did get some. Now I cleaned the carbs out and started the ski it runs out of the water but won’t run in the water. It needs a starter it’s a little weak I was thinking it could be the starter not wanting to start under a load anymore but I’m not sure. The ski also runs with a hose attached.
    Last edited by Brandon gp1200; 03-19-2019 at 11:38 AM.

  2. #2
    steve45's Avatar
    Join Date
    Feb 2008
    Sadly, you will probably have to completely disassemble the engine. The powder used in most fire extinguishers is very corrosive to aluminum (don't know about steel) if not cleaned quickly. If the engine shut off, the powder was probably ingested through the intake system, then the crankcase, then combustion chamber. I suppose that it could have happened so fast that it plugged up the flame arrestor screen and prevented most of it from entering the engine, but I doubt it. Hopefully, it didn't damage the crankshaft, but you really need to inspect it thoroughly.

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