Yamaha YZF-R125 Service Manual: Checking the switches

1. Clutch switch

2. Main switch

3. Front brake light switch

4. Sidestand switch

5. Rear brake light switch

6. Neutral switch

7. Turn signal switch

8. Horn switch

9. Dimmer switch

10.Pass switch

11.Engine stop switch

12.Start switch

Check each switch for continuity with the pocket tester. If the continuity reading is incorrect, check the wiring connections and, if necessary, replace the switch.

NOTE:

• Before checking for continuity, set the pocket tester to "0" and to the " × 1" range.
• When checking for continuity, switch back and forth between the switch positions a few times.

The switches and their terminal connections are illustrated as in the following example of the main switch.

The switch positions "a" are shown in the far left column and the switch lead colors "b" are shown in the top row.

The continuity (i. e., a closed circuit) between switch terminals at a given switch position is indicated by " ". There is continuity between
red and brown/blue, and blue/yellow and blue/black when the switch is set to "ON".