Checking the fuel injectors (Yamaha YZF-R1 Y(C))

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1. Remove:

• Fuel tank

Refer to "Fuel tank".

• Air filter upper cover (for secondary injector)

Refer to "Air filter case".

2. Check:

• Fuel injector resistance

Out of specification → Replace the fuel injector.

Fuel injector resistance (Primary injector/Secondary injector) 12.0 at 20°C (68°F).

a. Disconnect the fuel injector lead coupler from wire harness.

b. Connect the pocket tester ( x 1) to the fuel injector coupler.

Pocket tester 90890-03112.

Analog pocket tester YU-03112-C.

• Positive tester probe Injector terminal "1"
• Negative tester probe Injector terminal "2"

c. Measure the fuel injector resistance.

See this article in russian language

Article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014): «Checking the fuel injectors»: https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/electric/equipment/115662 <a href="https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/electric/equipment/115662">Checking the fuel injectors</a> - article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014) from section «Equipment and devices». [url=https://motoinstruction.ru/en/Yamaha/R1/YZFR1Y/electric/equipment/115662]Checking the fuel injectors[/url] - article about repair motorcycles «Yamaha R1 YZF- Y(C)» (2009-2014) from section «Equipment and devices».