Yamaha YZ450FA Automobile User Manual


 
6-5
FUEL TANK
2. Install:
• Fuel pump coupler
• Air scoop (left/right)
• Seat
Refer to "SEAT AND SIDE COVERS" in the
chapter 4.
CHECKING THE FUEL PRESSURE
1. Check:
• Pressure regulator operation
2. Remove the fuel tank.
Refer to "REMOVEING THE FUEL TANK"
section.
3. Connect the pressure gauge "1" and adapt-
er "2" to the fuel injection pipe.
4. Install the fuel tank.
Refer to "INSTALLING THE FUEL TANK"
section.
5. Start the engine.
6. Measure the fuel pressure.
CHECKING AND REPLACING THE DUMPER
1. Inspect:
• Damper 1 "1"
• Damper 2 "2"
• Damper 3 "3"
Wear/damage Replace
• Affix dampers 1 and 3 so that the arrow on
each damper is pointing outward.
Affix damper 2 so that the edge of the damper
contacts the edge "a" of the frame.
Pressure gauge
YU-03153/90890-03153
Fuel pressure adapter
YM-03186/90890-03186
Fuel pressure
312–328 kPa (3.12–3.28 kg/cm
2
)
20mm
20mm
35mm
35mm