Yamaha ef600 fuel leaks out of the fuel tap side hole only when I turn on the slide switch to run???

Does the rev counter red the correct RPM I wonder.

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If petrol leaking from bottom of air intake if air intake is connected
to carberator most likely the float needle jet is not seating properly . Try replacing needle jet it is connect under the floats. Motorcycle will still run but fuel will leak out carberator. Try

YAMAHA GENERATOR DEALER !!!!

weak mixture,dirty fuel,air leaks on induction manifolds,jets blocked,fuel tap filter chocked,float needles sticking,fuel level in carb incorrect,thottles not opening together,air leaks at exhaust pipe joints,

1. unscrew the 3 allen bolt around speedo.
2. lift speedo section up & undo speedo & wire plugs
3. 1 bolt each side at rear of tank. Undo these
4. lift rear of tank then slide towards rear of bike on angle.
5. once feel it slide up then lift the front upwards & forward.

MAKE SURE U TURN FUEL OFF & REMOVE HOSE FROM FUEL TAP B4 HAND

You can get a petcock rebuild kit if this is what your fuel tap refers to.

1. Release fuel system pressure.
2. Fuel tank must be removed prior to fuel pump service.
3. Using a hammer and a brass drift, carefully tap the fuel pump lock-ring counter-clockwise to release the fuel pump.
4. Remove the fuel pump and its O-ring from the fuel tank, and discard the old O-ring.
5. Cover tank openings to prevent dirt from entering system.

FUEL GAUGE SENDING UNIT REMOVAL

1. Gently bend the sending unit locking tabs away from the sending unit.
2. Remove the electrical connector cover (red). Remove the sending unit wires from the electrical connector.
3. Use one screwdriver to push on the fuel pump body, and use another to release the sending unit locking tab from the sending unit.
4. Slide the sending unit assembly off of the fuel pump reservoir housing.
5. Pull the wires through the reservoir body and fuel pump cover plate.

FUEL GAUGE SENDING UNIT INSTALLATION

1. Bend the sending unit wires and lay them into the slot on the back of the sending unit.
2. Slide the sending unit into the slots on the fuel pump reservoir body. Slide the wires through the triangle shaped hole in the fuel pump reservoir body. Check that the tab in the fuel sending unit locks into the detent in the fuel pump reservoir body.
3. Slip the wires onto the tab of the fuel pump reservoir body.
4. Slide the sending unit wire terminals into the electrical connector. Install the terminal locking cover.
5. Slide the fuel sending unit electrical connector into the bottom of the fuel pump electrical connector. Check that the connectors are securely attached and fully pushed into each other.

FUEL PUMP INSTALLATION

1. Wipe seal area of tank clean, and install a new O-ring seal on pump.
2. Position fuel pump module in tank and secure with the lock-ring.
3. Using a hammer and a brass drift, carefully tap the fuel pump lock-ring clockwise to lock the module in place. NOTE: Do not overtighten the lock-ring, because the fuel pump seal could split and leak.
4. Install fuel tank assembly. NOTE: ASD and fuel pump relays remain energized for 7 minutes during the following test, unless the test is stopped or the ignition switch is turned to the OFF position.
5. Using scan tool, place ignition switch in "RUN" position and use Actuate Output Test "Auto Shutdown (ASD) Relay", to activate fuel pump and pressurize system.
6. Check for leaks.