7-5
ELECTRIC STARTING SYSTEM
3. Inspect:
• Secondary coil resistance
Out of specification
→
Replace.
4. Inspect:
• Sealed portion of ignition coil "a"
• Spark plug terminal pin "b"
• Threaded portion of spark plug "c"
Wear
→
Replace.
CHECKING THE AC MAGNETO
1. Inspect:
• Pickup coil resistance
Out of specification
→
Replace.
CHECKING THE NEUTRAL
SWITCH
1. Inspect:
• Neutral switch conduction
Not conductive while it is in neutral
→
Replace.
Conductive while it is engaged
→
Re-
place.
Set the tester selection position to "
Ω
× 1".
CHECKING THE CDI UNIT
Check all electrical components. If no
fault is found, replace the CDI unit.
Then check the electrical compo-
nents again.
ELECTRIC STARTING
SYSTEM
STARTING CIRCUIT CUT-OFF
SYSTEM OPERATION
If the main switch is set to "ON", the
starter motor can only operate if at
least one of the following conditions is
met:
• The transmission is in neutral (the
neutral switch is closed).
• The clutch lever is pulled to the han-
dlebar (the clutch switch is closed).
The starting circuit cut-off relay pre-
vents the starter motor from operating
when neither of these conditions has
been met. In this instance, the start-
ing circuit cut-off relay is open so cur-
rent cannot reach the starter motor.
When at least one of the above con-
ditions has been met the starting cir-
cuit cut-off relay is closed and the
engine can be started by pressing the
start switch.
WHEN THE TRANSMISSION IS IN
NEUTRAL
WHEN THE CLUTCH LEVER IS
PULLED TO THE HANDLEBAR
1.
Battery
2.
Main fuse
3.
Main switch
4.
Starting circuit cut-off relay
5.
Start switch
6.
Diode
7.
Clutch switch
8.
Neutral switch
9.
Starter relay
10. Starter motor
Tester (+) lead
→
Orange lead "1"
Tester (-) lead
→
Spark plug termi-
nal "2"
Secondary
coil resis-
tance
Tester se-
lector posi-
tion
4.6–6.8
k
Ω
at 20 °C
(68 °F)
k
Ω
× 1
Tester (+) lead
→
Red lead "1"
Tester (-) lead
→
White lead "2"
Pickup coil
resistance
Tester se-
lector posi-
tion
248–372
Ω
at 20 °C (68
°F)
Ω
× 100
Tester (+) lead
→
Sky blue lead "1"
Tester (-) lead
→
Ground "2"
Result
Conductive (while gear
is in neutral)
Summary of Contents for WR250F(Y) 2009
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Page 71: ...3 18 ENGINE INTAKE EXHAUST...
Page 84: ...3 31 ELECTRICAL Charging method using a variable voltage charger...
Page 85: ...3 32 ELECTRICAL Charging method using a constant voltage charger...
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