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  1. J

    2006 Yamaha F115 fuel leaks from VST

    Even after replacing the O-Ring on the inlet to the fuel rail the fuel leak slowed dramatically, but I still have a small leak somewhere in the fuel system.
  2. J

    2006 Yamaha F115 fuel leaks from VST

  3. J

    2006 Yamaha F115 fuel leaks from VST

    After the cleanup and sitting overnight I primed the fuel system with the fuel bulb. Using a borescope I inspected the VST and all the lines and fittings associated with it; no current leaks or indications of former leaks. However, when I got near the fuel rail the camera showed a small drip and...
  4. J

    2006 Yamaha F115 fuel leaks from VST

    I cleaned it up this afternoon and will let it sit overnight. In the morning I will look for leaks the turn on the key and inspect the VST and hoses and then start the engine and look further for leaks. It's a difficult area to inspect because the air intake an throttle body cover the VST. I...
  5. J

    2006 Yamaha F115 fuel leaks from VST

    As you likely know the VST is hard to get to requiring the mechanic to remove most of the throttle body and the fuel systems. Any recommendations?
  6. J

    2006 Yamaha F115 fuel leaks from VST

    My Yamaha 4 Cycle F115 leaks fuel from the area of the VST, runs rough at half throttle and stalls frequently when shifting into gear. The fuel tank has been cleaned, new filter on the engine, and new injectors. At idle the loss is a steady drip out of the lower cowling. I can't pinpoint where...
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