Yamaha XV16AL Service Manual page 437

3. Decompression solenoid
CIRCUIT DIAGRAM
B Ignitor unit
E Decompression solenoid
EAS00843
1.Wire harness
• Check the wire harness for continuity.
Refer to "CIRCUIT DIAGRAM".
• Is the wire harness OK?
7
2.Decompression solenoid (thermistor)
• Disconnect the decompression solenoid
couplers from the wire harness.
• Connect the pocket tester (Ω × 10) to the
decompression solenoid coupler as shown.
Tester positive probe → green 1
Tester negative probe → green 2
NO
YES
Repair or replace
the wire harness.
SELF-DIAGNOSIS
• Measure the decompression solenoid
resistance.
Decompression solenoid resis-
tance (thermistor)
68.75 ~ 78.75 Ω at 25 ˚C (77 ˚F)
NOTE:
The resistance value for the thermistor
changes when the temperature changes;
therefore, measure the decompression
solenoid resistance at the specified tem-
perature.
• Connect the pocket tester (Ω × 1) to the
decompression
shown.
Tester positive probe → black 3
Tester negative probe → black 4
Decompression solenoid resistance
1.2 Ω at 20 ˚C (68 ˚F)
7 - 59
– +
ELEC
solenoid coupler as