Yamaha YZF-R1 2007 Service Manual

ELECTRICAL COMPONENTS8-99b. Measure the pickup coil resistance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS28230CHECKING THE FUEL SENDER1. Disconnect:• Fuel pump coupler• Fuel sender coupler(from the wire harness)2. Remove:• Fuel tank3. Remove:• Fuel pump(from the fuel tank)4. Check:• Fuel sender resistance▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Connect the pocket tester (Ω × 1) to thefuel sender terminal as shown.b. Measure the fuel sender resistance.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲EAS28240CHECKING THE SPEED SENSOR1. Check:• Speed sensor output voltageOut of specification → Replace.▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼a. Connect the pocket tester (DC 20 V) to thespeed sensor coupler (wire harness side)as shown.b. Set the main switch to “ON”.c. Elevate the rear wheel and slowly rotate it.Pocket tester90890-03112Analog pocket testerYU-03112-CMaximum level position “A”• Positive tester probeConnector (white) “1”• Negative tester probeBody earth “2”Minimum level position “B”• Positive tester probeConnector (white) “1”• Negative tester probeBody earth “2”Fuel sender resistance19–141Ω at 20°C (68°F)Pocket tester90890-03112Analog pocket testerYU-03112-C• Positive tester probeGreen/white “1”• Negative tester probeBlack “2”Output voltage reading cycle0.6 V to 4.8 V to 0.6 V to 4.8 VPocket tester90890-03112Analog pocket testerYU-03112-C• Positive tester probeWhite/Yellow “1”• Negative tester probeBlack/Blue “2”Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk