Checking The Crankshaft Position Sensor; Checking The Starter Motor Operation; Checking The Stator Coil - Yamaha R1 Series 2015 Service Manual

2. Ignition coil
c. Turn the main switch to "ON".
d. Measure the ignition spark gap "a".
e. Crank the engine by pushing the " " side of
the start/engine stop switch and gradually in-
crease the spark gap until a misfire occurs.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS30560
CHECKING THE CRANKSHAFT POSITION
SENSOR
1. Disconnect:
• Crankshaft position sensor coupler
(from the wire harness)
2. Check:
• Crankshaft position sensor resistance
Out of specification
shaft position sensor.
Crankshaft position sensor resis-
tance
189–231
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the pocket tester (
crankshaft position sensor coupler as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
black "1"
• Negative tester probe
gray "2"
Replace the crank-
100) to the
8-187
ELECTRICAL COMPONENTS
b. Measure the crankshaft position sensor re-
sistance.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS30562
CHECKING THE STARTER MOTOR
OPERATION
1. Check:
• Starter motor operation
Does not operate
starting system troubleshooting, starting with
step 4.
Refer to "TROUBLESHOOTING" on page
8-14.
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the positive battery terminal "1" and
starter motor lead "2" with a jumper lead "3".
EWA13810
WARNING
• A wire that is used as a jumper lead must
have at least the same capacity of the bat-
tery lead, otherwise the jumper lead may
burn.
• This check is likely to produce sparks,
therefore, make sure no flammable gas or
fluid is in the vicinity.
b. Check the starter motor operation.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS30566

CHECKING THE STATOR COIL

1. Disconnect:
• Stator coil coupler
B Gy
Perform the electric