charging YAMAHA WR 250F 2004 User Guide

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–+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.
*2 marked: Refer to “BATTERY INSPECTION AND CHARGING” section in the CHAPTER 3.
*3 marked: Refer to “MAIN SWITCH INSPECTION” section.
*4 marked: Refer to “NEUTRAL SWITCH INSPECTION” section.
NOTE:Remove the following parts before inspection.
1) Seat
2) Rear fender
Use 12 V battery in this inspection.
Use the following special tools in this inspection.
*1 Check fuse.Replace fuse and check
wire harness.
*2 Check battery. Recharge or replace.
Check each coupler and wire
connection.Repair or replace.
*3 Check main switch. Replace.
Check starter motor operation. Repair or replace.
Check starting circuit cut-off relay. Replace.
Check starter relay.Replace.
*4 Check neutral switch. Replace.
Check clutch switch.Replace.
Check diode.Replace.
Check start switch.Replace.
Pocket tester:
YU-3112-C/
90890-03112
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good
OK
No good

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–+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 the CHAPTER 3.
*2 marked: Refer to “BATTERY INSPECTION AND CHARGING” section in the CHAPTER 3.
NOTE:Remove the following parts before inspection.
1) Seat
2) Fuel tank
Use the following special tool in this inspection.
*1 Check fuse.Replace fuse and check
wire harness.
*2 Check battery. Recharge or replace.
Check each coupler and wire
connection.Repair or replace.
Check charging voltage. Charging system is good.
Check AC magneto. Charging coil Replace.
Replace rectifier/regulator.
Pocket tester:
YU-3112-C/
90890-03112
No good
OK
No good
OK
No good
OK
OK
No good
No good
OK

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–+ELECCHARGING SYSTEM
EC624000COUPLERS AND LEADS
CONNECTION INSPECTION
1. Check:
Couplers and leads connec-
tion
Rust/dust/looseness/short-cir-
cuit
→ Repair or replace.
CHARGING VOLTAGE
INSPECTION
1. Start the engine.
2. Inspect:
Charging voltage
Out of specification
→ If no
failure is found in checking the
source coil resistance, replace
the rectifier/regulator.
Tester (+) lead →
Red lead 1

Tester (–) lead →
Black lead 2

Charging
voltageTester
selector
position
14.1 ~ 14.9 V
at 5,000 r/minDCV-20
R
BW Y1
2
3. Inspect:
Charging coil resistance
Out of specification
→
Replace.
Tester (+) lead →
White lead 1

Tester (–) lead →
Ground 2

Charging coil
resistanceTester
selector
position
0.288 ~ 0.432 Ω

at 20 °C (68 °F)Ω
×
1
INSPECTION DE LA CONNEXION
DES RACCORDS ET DES FILS
1. Contrôler:
Connexion des raccords et des
fils
Rouille/poussière/desserrage/
court-circuit → Réparer ou rem-
placer.
INSPECTION DE LA TENSION DE
CHARGE
1. Démarrer le moteur.
2. Contrôler:
Tension de charge
Hors spécification → Si aucune
erreur n’est détectée lors du con-
trôle de la résistance de la bobine
source, remplacer le redresseur/
régulateur.
Fil (+) de multimètre → Fil rouge 1
Fil (–) de multimètre → Fil noir 2
Tension de
chargePosition de
sélecteur du
multimètre
14,1 à 14,9 V à
5.000 tr/mnDCV-20
3. Contrôler:
Résistance de la bobine de charge
Hors spécification → Remplacer.
Fil (+) de multimètre → Fil blanc 1
Fil (–) de multimètre → Masse 2
Résistance de la
bobine de
chargePosition de
sélecteur du
multimètre
0,288 à 0,432 Ω
à 20 °C (68 °F)Ω × 1
SYSTEME DE RECHARGE