Checking The Oil Level Switch; Checking The Fuel Sender - Yamaha 2009 YZF-R1 (Y) Service Manual

b. Connect the pocket tester (Ω × 1) to the
horn terminals.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Horn terminal "1"
• Negative tester probe
Horn terminal "2"
c. Measure the horn resistance.
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2. Check:
• Horn sound
Faulty sound → Replace.
EAS28190

CHECKING THE OIL LEVEL SWITCH

1. Drain:
• Engine oil
2. Remove:
• Oil level switch
(from the oil pan)
3. Check:
• Oil level switch resistance
Out of specification → Replace.
Oil level switch
Maximum level position resis-
tance
484–536 Ω
Minimum level position resis-
tance
114–126 Ω
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a. Connect the pocket tester (Ω × 100) to the
oil level switch terminal as shown.
ELECTRICAL COMPONENTS
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Minimum level position "A"
• Positive tester probe
Connector (White) "1"
• Negative tester probe
Body earth "2"
Maximum level position "B"
• Positive tester probe
Connector (White) "1"
• Negative tester probe
Body earth "2"
b. Measure the oil level switch resistance.
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EAS14B1035

CHECKING THE FUEL SENDER

1. Disconnect:
• Fuel pump coupler
• Fuel sender coupler
(from the wire harness)
2. Remove:
• Fuel tank
3. Remove:
• Fuel pump
(from the fuel tank)
4. Check:
• Fuel sender resistance
Out of specification → Replace.
Fuel sender resistance
14–141 Ω at 20 °C (68 °F)
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a. Connect the pocket tester (Ω × 1) to the
fuel sender terminal as shown.
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