Checking The Stator Coil; Checking The Rectifier/Regulator; Checking The Fuel Sender - Yamaha 2016 Grizzly yfm700gplg Service Manual

EBS30305

CHECKING THE STATOR COIL

1. Disconnect:
• AC magneto coupler
(from the wire harness)
2. Check:
• Stator coil resistance
Out of specification → Replace the crank-
shaft position sensor/stator assembly.
Stator coil resistance
0.15–0.22 Ω
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Connect the pocket tester (Ω × 1) to the AC
magneto coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
white "1"
• Negative tester probe
white "2"
• Positive tester probe
white "1"
• Negative tester probe
white "3"
• Positive tester probe
white "2"
• Negative tester probe
white "3"
W
b. Measure the stator coil resistance.
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
EBS30306

CHECKING THE RECTIFIER/REGULATOR

1. Check:
• Charging voltage
Out of specification → Replace the rectifi-
er/regulator.
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
W W
1 2 3
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
ELECTRICAL COMPONENTS
▼ ▼▼▼ ▼ ▼▼▼ ▼
a. Connect the engine tachometer to the spark
plug lead.
b. Connect the pocket tester (DC 20 V) to the
rectifier/regulator coupler as shown.
▼▼▼
• Positive tester probe
red "1"
• Negative tester probe
black "2"
c. Start the engine and let it run at approximate-
ly 5000 r/min.
d. Measure the charging voltage.
▲ ▲▲▲ ▲ ▲▲▲ ▲
EBS30307

CHECKING THE FUEL SENDER

1. Disconnect:
• Fuel pump coupler
(from the wire harness)
2. Remove:
• Fuel pump assembly
(from the fuel tank)
3. Check:
• Fuel sender resistance
Out of specification → Replace the fuel pump
assembly.
▲▲▲
▼ ▼▼▼ ▼ ▼▼▼ ▼
a. Connect the pocket tester (Ω × 10) to the fuel
sender terminal as shown.
9-93
Charging voltage
above 14 V at 5000 r/min
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
R B
W W W
1
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
Sender unit resistance (full)
19.00–21.00 Ω
Sender unit resistance (empty)
138.50–141.50 Ω
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
▼ ▼▼▼ ▼ ▼▼▼
2
▲ ▲▲▲ ▲ ▲▲▲
▼ ▼▼▼ ▼ ▼▼▼