2005 YAMAHA WR 250F battery

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Page 745 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 6 - 8
–+ELECIGNITION SYSTEM
EC620000
IGNITION SYSTEM
INSPECTION STEPS
Use the following steps for checking the possibility of the malfunctioning engine being attributable to ignition system failure

Page 752 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 6 - 15
–+ELECIGNITION SYSTEM
2. Inspect: 
Rubber part 
a 
Tears/damage 
→ Replace.
a
MAIN SWITCH INSPECTION
1. Inspect:
Main switch conduct
Continuous while the main switch is
moved to “OFF”

Page 758 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 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 760 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 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 766 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 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 768 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 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 782 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 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 810 of 864

YAMAHA WR 250F 2005  Betriebsanleitungen (in German) 6 - 73
–+ELECLIGHTING SYSTEM
AC MAGNETO INSPECTION
1. Inspect:
Lighting coil resistance
Out of specification 
→ 
Replace.
Tester (+) lead →
 Yellow lead 1
 
Tester (–) lead →
 Ground 2
 
Li
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