Couplers And Leads Connection Inspection; Starter Motor Operation; Starting Circuit Cut-Off Relay Inspection - Yamaha WR450F(W) Owner's Service Manual

3
4
2
1
ELECTRIC STARTING SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:

STARTER MOTOR OPERATION

1. Connect the positive battery terminal 1
• A wire that is used as a jumper lead must
have at least the same capacity or more
as that of the battery lead, otherwise the
jumper lead may burn.
• This check is likely to produce sparks,
therefore make sure nothing flammable is
in the vicinity.
STARTING CIRCUIT CUT-OFF RELAY
INSPECTION
1. Remove:
2. Inspect:
Battery (+) lead → Blue/Black lead 1
Battery (–) lead → Brown lead 2
Tester (+) lead → Blue/White lead 3
Tester (–) lead → Black lead 4
6 - 8
• Couplers and leads connection
Rust/dust/looseness/short-circuit →
Repair or replace.
and starter motor lead 2 with a jumper
lead 3.
Not operate → Repair or replace the
starter motor.
WARNING
• Starting circuit cut-off relay
• Starting circuit cut-off relay conduct
Use 12 V battery.
L/W
3
Con-
nected to
battery
Not con-
nected to
battery
– +
ELEC
B Tester selec-
4
tor position
Ω × × × × 1