Question about 1994 Suzuki GSX-R 750 WR

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Suzuki gsxr 750 1994 garaged all winter, wouldnt start. sparking. lifted tank no fuel delivery. after disturbing tank. bike started. ran about 1 to 2 miles stopped again. AA called. lifted tank. blew down fuel lines. bike ran again. rode it home. theres 3 pipes to the tap; 1 large diameter and 2 smaller diameter with what looks like inline filters fitted. dont know what pipe does what. tank nearly full. do i drain tank. clean tap and renew filters. fuel pipes seem in ok condition?

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  • pajeropaul Mar 23, 2011

    emissionwiz

    Thanking you, i will purchase a new Petcock valve. Again. Thanking you.

    Paul.

  • pajeropaul Mar 23, 2011

    Very helpful. thanking you.

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  • Suzuki Master
  • 75,807 Answers

Hello
Having owned this (mine was a 91) model and knowing allot of Suzuki owners over the years the problem here is the fuel valve (called a Petcock valve) is defective, they sick, the reason is that the valve is operated by engine vacuum, so it only delivers fuel when the engine is cranking over or running, the only exception to this is the so called Prime position marked with a "P" on the valve. The hose consist two small vacuum lines from the engine that operate the valve in the run and reserve position and the large line is the fuel delivery hose to the engine. My advice is to mark the lines with tape, remove the fuel tank and replace the fuel petcock valve with a new one, this will also eleminate the other nasty problem this valve has, the rubber O ring fails and it leaks fuel all over the engine fairings and runs the paint, this happened to my bike.

Posted on Mar 23, 2011

  • yadayada
    yadayada Mar 23, 2011

    Here is a picture of the fuel valve petcock on the fuel tank, it is held into the tank by two machine screws, drain the 1st by placing the selector in the "P" prime position, do not get gas on the paint or worse the decals.



  • yadayada
    yadayada Mar 23, 2011

    Hello

    If my solution was what you needed could you please reward my efforts by rating this solution for Fixya as a "HELPFUL" That is how I'm compensated for my efforts. Thanks again

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2002 Suzuki GSXR 750 is hard starting


Hi, Damian and the usual suspects are:
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