FUEL SYSTEM
Fuel Shut-Off Valve
2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual Page 14-27
14
FUEL SHUT-OFF VALVE
Read DANGER and WARNING on page 14-1.
The fuel shut-off valve is located on top of the fuel tank (Figure 14-19, Page 14-25). The fuel shut-off valve
should always be turned to the closed (OFF) position during vehicle storage, towing or trailering (Figure 14-
20, Page 14-27). Unless the engine will be run as part of a procedure, the fuel shut-off valve should also be
closed (OFF) before performing maintenance or service procedures.
Fully Open Position
The valve’s open position differs from standard valve configurations. For the valve to be fully open, it must be
turned approximately 120° from the closed (OFF) position (until it cannot be turned any further) (Figure 14-
21, Page 14-27). If the valve becomes partially closed (Figure 14-22, Page 14-27), the engine will not run
properly due to fuel starvation.
Figure 14-20 Closed Fuel Shut-off Valve
Figure 14-21 Open Fuel Shut-off Valve
Figure 14-22 Incorrect Fuel Shut-off Valve
CLOSED (OFF) POSITION
(SELECTOR IS ALIGNED
WITH OFF MARKINGS ON THE SIDES OF VALVE)
OFF
OFF
VIEWED FROM SELECTOR
SIDE OF VALVE
FULL OPEN (ON)
POSITION
VIEWED FROM SELECTOR
SIDE OF VALVE
VIEWED FROM SELECTOR
SIDE OF VALVE
PARTIALLY CLOSED
POSITION
