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Yamaha 2009 YZF-R1 (Y) - Checking the Fuel Injectors

Yamaha 2009 YZF-R1 (Y)
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ELECTRICAL COMPONENTS
8-144
EAS14B1101
CHECKING THE FUEL INJECTORS
1. Remove:
Fuel tank
Refer to “FUEL TANK” on page 7-1.
Air filter upper cover (for secondary injec-
tor)
Refer to “AIR FILTER CASE” on page 7-
5.
2. Check:
Fuel injector resistance
Out of specification Replace the fuel
injector.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Disconnect the fuel injector lead coupler
from wire harness.
b. Connect the pocket tester (Ω × 1) to the
fuel injector coupler.
c. Measure the fuel injector resistance.
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Fuel injector resistance
(Primary injector/Secondary
injector)
12.0 Ω at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Positive tester probe
Injector terminal “1”
Negative tester probe
Injector terminal “2”

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