Checking The Crankshaft Position Sensor - Yamaha MX775 Service Manual

ELECTRICAL COMPONENTS
a b
Resistance:
3.0–7.0 k
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the digital circuit tester () to the throttle
position sensor terminals as shown.
Model 88 Multimeter with tachometer:
YU-A1927
• Positive tester probe 
Terminal "a"
• Negative tester probe 
Terminal "b"
b. Measure the throttle position sensor maximum
resistance.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3.
Install:
• Throttle body assembly
CHECKING THE CRANKSHAFT POSITION
SENSOR
1.
Remove:
• Fan case cover
• Grass screen
• Fan case
(Refer to "CASE AND FAN" on page 3-11)
2.
Check:
• Crankshaft position sensor resistance
Out of specification  Replace the crankshaft posi-
tion sensor.
Crankshaft position sensor resistance:
3.0–7.0 k
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Connect the digital circuit tester () to the crank-
shaft position sensor coupler as shown.
Model 88 Multimeter with tachometer:
YU-A1927
5-30
1
2
3
4
5
6
7
8
9
10