THROTTLE BODIES
7-12
EAS26980
CHECKING THE PRIMARY INJECTORS
1. Check:
• Injectors
Damage → Replace.
EAS26990
CHECKING THE THROTTLE BODIES
1. Check:
• Throttle bodies
Cracks/damage → Replace the throttle bod-
ies as a set.
2. Check:
• Fuel passages
Obstructions → Clean.
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a. Wash the throttle bodies in a petroleum-
based solvent.
Do not use any caustic carburetor cleaning
solution.
b. Blow out all of the passages with compressed
air.
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ET2C05001
CHECKING THE ROLLOVER VALVE (for
California only)
1. Check:
• Rollover valve “1”
Damage/faulty → Replace.
NOTE:
• Check that air flows smoothly only in the direc-
tion of the arrow shown in the illustration.
• The rollover valve must be in an upright posi-
tion when checking the airflow.
EAS27010
CHECKING THE FUEL PRESSURE
1. Check:
• Fuel pressure
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a. Remove the rider seat.
Refer to “GENERAL CHASSIS” on page 4-1.
b. Disconnect the fuel hose (fuel tank to primary
injector fuel rail) “1” from the primary injector
fuel rail.
WARNING
EW2C01008
Cover fuel hose connections with a cloth
when disconnecting them. Residual pres-
sure in the fuel lines could cause fuel to
spurt out when removing the hoses.
c. Connect the pressure gauge “2” and adapter
“3” to the fuel hose (fuel tank to primary injec-
tor fuel rail).
d. Start the engine.
e. Measure the fuel pressure.
Faulty → Replace the fuel pump.
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1
Pressure gauge
90890-03153
Pressure gauge
YU-03153
Fuel pressure adapter
90890-03176
YM-03176
Fuel pressure
324 kPa (46.1 psi) (3.24 kg/cm²)
1
2
3
1
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