ELEC
IGNITION SYSTEM
6. Ignition coil resistance
• Measure the primary coil resistance.
• Connect the pocket tester to the ignition
coil, as shown.
YES
NO
YES
NO
YES
NO
Replace the ignition
coil.
7. Crankshaft position sensor resistance
• Disconnect the crankshaft position sensor
connector from the witing harness.
• Connect the pocket tester (
Ω
x 100) to
the sensor probe, as shown.
Positive tester probe --> blue/yellow
1
Negative tester probe --> green
2
Replace the
crankshaft position
sensor
8. Main switch
Replace the main
switch
• Disconnect the ignition coil leads from the
wire harness.
• Connect the pocket tester to the ignition
coil, as shown.
Positive tester probe --> brown/red
Negative tester probe -->
orange
Negative tester probe --> spark plug lead
1
Positive tester probe --> brown/red
2
Primary coil resistance
2.1 ~ 2.6
Ω
at 20°C (68°F)
Secondary coil resistance
8.64 ~ 12.96k
Ω
Ω
Ω
Ω
Ω
at 20°C (68°F)
• Measure the secondary coil resistance.
• Measure the crankshaft position sensor
resistance.
• Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the ignition ok?
G
LY
7-11
• Is the ignition coil OK?
Crankshaft position sensor resistance
192 ~ 288
Ω
at 20ºc (68°F)
(between green and blue/yellow)
• Is the crankshaft position sensor OK?
Содержание YBR250 2007
Страница 1: ...YBR250 SERVICE MANUAL 5D1 F8197 E0 2007 ...
Страница 2: ......
Страница 359: ...YAMAHA MOTOR DA AMAZÔNIA LTDA ...