CHARGING SYSTEM

ELEC

+

EC624000

COUPLERS AND LEADS CONNECTION INSPECTION

1.Check:

Couplers and leads connection Rust/dust/looseness/short-circuit

Repair or replace.

Y W

 

R

1

B

2

CHARGING VOLTAGE INSPECTION

1.Start the engine.

2.Inspect:

Charging voltage

Out of specification If no failure is found in checking the source coil resis- tance, replace the rectifier/regulator.

Tester (+) lead Red lead 1

Tester (–) lead Black lead 2

 

 

 

 

 

Charging

Tester selector

 

 

 

 

 

 

 

 

 

 

voltage

position

 

 

 

 

 

 

 

 

 

 

 

 

14.1 ~ 14.9 V at

DCV-20

 

 

 

 

 

5,000 r/min

 

 

 

 

 

 

 

 

 

 

 

 

 

3.Inspect:

Charging coil resistance

Out of specification Replace.

Tester (+) lead White lead 1

Tester (–) lead Ground 2

 

 

 

 

 

Charging coil

Tester selector

 

 

 

 

 

 

 

 

 

 

resistance

position

 

 

 

 

 

 

 

 

 

 

 

 

0.288 ~ 0.432 at

Ω ⋅ 1

 

 

 

 

 

20 °C (68 °F)

 

 

 

 

 

 

 

 

 

 

 

 

 

6 - 18

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Image 313
Yamaha WR250FM service manual Charging Voltage Inspection, Tester + lead → Red lead Tester lead → Black lead