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    Sputtering Suzuki DF140

    My 2004 Suzuki DF140 starts sputtering and surging when I get it over 3000 rpms. I had the same problem last September and I drained the fuel rail and VST and it solved the problem. When I tried to drain the VST this time nothing came out. Should the VST be full of fuel?
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    Sputtering Suzuki 2004 140HP four stroke

    I have twin 140HP Suzuki 4 four stroke engines one runs greats the other started sputtering in and out at wide open throttle a couple of weeks ago and now it is doing it at lower RPM ranges. Both the engine are running from the same fuel tank. When I first started having this problem I fiqured...
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