Checking The Stator Coil; Checking The Rectifier/Regulator - Yamaha MT-01 Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk
2. Check:
• Lean angle cut-off switch output voltage
Out of specification → Replace.
Lean angle cut-off switch output
voltage
Less than 65°: 0.4–1.4 V
More than 65°: 3.7–4.4 V
M MMM M MMM M M MMM M M MMM
a. Connect the lean angle cut-off switch coupler
to the lean angle cut-off switch.
b. Connect the pocket tester (DC 20 V) to the
lean angle cut-off switch coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
yellow/green "1"
• Negative tester probe →
black/blue "2"
c. Turn the lean angle cut-off switch to 65°.
d. Measure the lean angle cut-off switch output
voltage.
L LLL L LLL L L LLL L L LLL
EAS28150

CHECKING THE STATOR COIL

1. Disconnect:
• Stator coil coupler
(from the wire harness)
2. Check:
• Stator coil resistance
Out of specification → Replace the stator as-
sembly.
Stator coil resistance
0.1280–0.1920 Ω
Email: info@motomatrix.co.uk
M M MMM M M MMM M MMM
L L LLL L L LLL L LLL
ELECTRICAL COMPONENTS
M MMM M MMM M M MMM M
a. Connect the pocket tester (Ω × 1) to the stator
coil coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
black "1"
• Negative tester probe →
black "2"
• Positive tester probe →
black "1"
• Negative tester probe →
black "3"
• Positive tester probe →
black "2"
• Negative tester probe →
black "3"
b. Measure the stator coil resistance.
L LLL L LLL L L LLL L
EAS28170

CHECKING THE RECTIFIER/REGULATOR

1. Check:
• Charging voltage
Out of specification → Replace the rectifi-
er/regulator.
Charging voltage
14 V at 5000 r/min
7-101
M MMM M M MMM M M MMM M
B B B
1 2 3
L LLL L L LLL L L LLL L
MMM
LLL