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JustFishin.....

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  5. Yamaha T9.9 fuel issue solved

    in This Old Boat

    Posted

    I recently boat a 1993 Yamaha T9.9ELRR it was starving for fuel and not running correctly. These motors are notorious for fuel pump issues and Yamaha has since developed a pump with a heat sink and cooler for them. I picked up the new pump (around 100 bucks) at Brobiel Marine (Frans a great guy). Replaced the pump and she was running only slightly better and still sucking the filter dry.

     

    I ripped out the connections and fuel line and ran a new line straight to the tank. Same thing.......... I read somewhere that a clogged crank breather could cause this issue. I pulled the breather line (see pic 1) and sure enough it was clogged with a mud wasp nest or something. Cleaned it out, checked inside the breather and other lines. Everything is clear and she is running great now. Hope this helps someone out one of these days.

     

     

     

    Sent from my iPhone using Lake Ontario United mobile app

     

     

     

    Sent from my iPhone using Lake Erie United Mobile App

  7. Kicker Motor

    in Open Lake Discussion

    Posted

    Have you tried rebuilding the carburetor? They have some extraordinarily small passages in them you have to use a single strand of copper wire to clean some of them. Also the fuel pumps are prone to going. I had a 1992, that trolled like a champ until I sold my boat in the fall. Wish I had kept it.


    Sent from my iPhone using Lake Erie United Mobile App

    Also if you decide to part with yours I may be interested.


    Sent from my iPhone using Lake Erie United Mobile App
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