LIGHTING SYSTEM

ELEC

+

LIGHT SWITCH INSPECTION

1.Inspect:

• Light switch conduct

Tester (+) lead Yellow lead 1

Tester (–) lead Blue lead 2

 

 

 

 

 

Y

 

L

Tester selector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ω ⋅ 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

No continuous while being Replace. Continuous while being OFF Replace.

AC MAGNETO INSPECTION

1.Inspect:

Lighting coil resistance

Out of specification Replace.

Tester (+) lead Yellow lead 1

Tester (–) lead Ground 2

 

 

 

 

 

Lighting coil

Tester selector

 

 

 

 

 

 

 

 

 

 

resistance

position

 

 

 

 

 

 

 

 

 

 

 

 

0.224 ~ 0.336 at

Ω ⋅ 1

 

 

 

 

 

20 °C (68 °F)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y W

 

1

R

 

 

B

2

RECTIFIER/REGULATOR INSPECTION

1.Connect the battery leads.

2.Start the engine.

3.Turn on the headlight and taillight by turn- ing on the light switch.

4.Inspect:

Out-put voltage

Out of specification Replace rectifier/ regulator.

Tester (+) lead Yellow lead 1

Tester (–) lead Black lead 2

 

 

 

 

 

Out-put voltage

Tester selector

 

 

 

 

 

 

 

 

 

 

position

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.0 ~ 14.0 V at

ACV-20

 

 

 

 

 

5,000 r/min

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 320
Yamaha WR250FM service manual Light Switch Inspection, Off, RECTIFIER/REGULATOR Inspection