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  1. #1

    gp800r fuel contamination please help

    I recently rebuilt this 800r. Carbs were also rebuilt at the same time.
    Ski was running absolutely perfect and then started loosing power.
    On investigation I found the carbs, fuel filter and full sender filter completely clogged with a brown sticky substance. The fuel tank also had a large among of the stuff at the bottom.
    This stuff is like sticky toffee. Anyone know what it is and how to remove it.
    Click image for larger version. 

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  2. #2
    try a solvent on a rag tied to the end of a stick

  3. #3
    I got the stuff out of the tank hd to remove the tank though. My problem is the carbs are clogged with this sticky substance.
    Tried burning g some on the tip of a screwdriver. I smells like plastic burning. Will post pic of the stuff removed from tank

  4. #4
    Here is what I removed from tank
    Click image for larger version. 

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  5. #5

    Join Date
    Mar 2014
    Okinawa, Japan
    I heard of something a while back but I don't know if this applies or not. I knew that there were some fuel lines that would deteriorate and get into the system and jack everything up. I'd check them out and see if the inside of them are like weird looking and gelatinous looking. Just an idea.

  6. #6
    Matt Hill's Avatar
    Join Date
    Jan 2011
    South Jersey
    That's what old fuel with ethanol in it turns into...

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