Checking The Oil Level Switch; Checking The Fuel Sender - Yamaha VMAX 2009 Service Manual

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
Oil level switch resistance
Maximum level position
484–536 Ω
Minimum level position
114–126 Ω
M MMM M MMM M M MMM M
a. Connect the pocket tester (Ω × 100) to the oil
level switch terminal as shown.
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"
b. Measure the oil level switch resistance.
L LLL L LLL L L LLL L
EAS28220

CHECKING THE FUEL SENDER

1. Disconnect:
• Fuel pump coupler
(from the wire harness)
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
ELECTRICAL COMPONENTS
2. Remove:
• Fuel pump
(from the fuel tank)
3. Check:
• Fuel sender resistance
Out of specification → Replace the fuel pump
assembly.
M MMM M MMM M
a. Connect the pocket tester (Ω × 10) to the fuel
sender terminals as shown.
MMM
• Positive tester probe →
green/black "1"
• Negative tester probe →
black "2"
b. Move the fuel sender float to minimum "3"
and maximum "4" level position.
LLL
c. Measure the fuel sender resistance.
L LLL L LLL L
8-143
Sender unit resistance (full)
19.0–21.0 Ω
Sender unit resistance (empty)
139.0–141.0 Ω
M MMM M M MMM M M MMM M
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
4
3
L LLL L L LLL L L LLL L
M MMM M MMM
1
R/L G/B
B
B
2
L LLL L LLL