Yamaha Vmax VMX17C 2009 - Checking the Oil Level Switch; Checking the Fuel Sender

ELECTRICAL COMPONENTS
8-135
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
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a. Connect the pocket tester (Ω × 100) to the oil
level switch terminal as shown.
b. Measure the oil level switch resistance.
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EAS28220
CHECKING THE FUEL SENDER
1. Disconnect:
• Fuel pump coupler
(from the wire harness)
2. Remove:
• Fuel pump
(from the fuel tank)
3. Check:
• Fuel sender resistance
Out of specification → Replace the fuel pump
assembly.
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a. Connect the pocket tester (Ω × 10) to the fuel
sender terminals as shown.
b. Move the fuel sender float to minimum “3”
and maximum “4” level position.
c. Measure the fuel sender resistance.
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Oil level switch resistance
Maximum level position
484–536 Ω
Minimum level position
114–126 Ω
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Maximum level position “A”
• Positive tester probe →
connector (white) “1”
• Negative tester probe →
body ground “2”
Minimum level position “B”
• Positive tester probe →
connector (white) “1”
• Negative tester probe →
body ground “2”
Sender unit resistance (full)
19.0–21.0 Ω
Sender unit resistance (empty)
139.0–141.0 Ω
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
green/black “1”
• Negative tester probe →
black “2”
B
B
R/L
G/B
1
2
4
3