2003 YAMAHA WR 250F battery

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Page 754 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 21
–+ELECELECTRIC STARTING SYSTEM
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 o

Page 756 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 23
–+ELECELECTRIC STARTING SYSTEM
INSPECTION STEPS
If the starter motor will not operate, use the following inspection steps.
*1 marked: Refer to “FUSE INSPECTION” section in the CHAPTER 3.

Page 762 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 29
–+ELECELECTRIC STARTING SYSTEM
EC624000COUPLERS AND LEADS 
CONNECTION INSPECTION
1. Check:
Couplers and leads connec-
tion 
Rust/dust/looseness/short-cir-
cuit 
→ Repair or replace.
STARTE

Page 764 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 31
–+ELECELECTRIC STARTING SYSTEM
STARTER RELAY INSPECTION
1. Remove:
Starter relay
2. Inspect:
Starter relay conduct
Use 12 V battery.
Continuous while not connected to
the battery 
→ Repla

Page 778 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 45
–+ELECCHARGING SYSTEM
EC680000
CHARGING SYSTEM
EC681001INSPECTION STEPS
If the battery is not charged, use the following inspection steps.
*1 marked: Refer to “FUSE INSPECTION” section in

Page 806 of 860

YAMAHA WR 250F 2003  Manuale duso (in Italian) 6 - 73
–+ELECLIGHTING SYSTEM
LIGHT SWITCH INSPECTION
1. Inspect:
Light switch conduct
No continuous while being 
→
Replace.
Continuous while being OFF 
→
Replace.
AC MAGNETO INSPECTION
1. Inspe
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