Yamaha YFM350R-W Supplementary Service Manual

Also see for YFM350R-W: Owner's manual Owner's manual

Yamaha YFM350R-W Supplementary Service Manual Manual pdf 61 page image

– 54 –– +ELECLIGHTING SYSTEMEAS00788CHECKING THE LIGHTING SYSTEM1. The headlight fails to come on.YES NOYES NO2. The high beam indicator light fails to comeon.YES NO1. Headlight bulb and socket• Check the headlight bulb and socket forcontinuity.• Are the headlight bulb and socket OK?Replace the head-light bulb, socket orboth.2. Voltage• Connect the pocket tester (DC 20 V) to theheadlight coupler as shown.È When the light switch is set to “ ”.É When the light switch is set to “ ”.Positive tester probe →yellow 1 or green 2Negative tester probe → black 3• Set the main switch to “ON”.• Start the engine.• Set the light switch to “ ” or “ ”.• Measure the voltage (DC 12 V) of yellow1 (green 2) on the headlight coupler.• Is the voltage within specification?This circuit is OK. The wiring circuitfrom the main switchto the headlight cou-pler is faulty andmust be repaired.DC 20V+2ÉÈ13G YB1. Voltage• Connect the pocket tester (DC 20 V) to themeter assembly coupler (wire harnessside) as shown.Positive tester probe → yellow 1Negative tester probe → black 2• Set the main switch to “ON”.• Start the engine.• Set the light switch to “ ”.• Measure the voltage (DC 12 V) of yellow1 on the meter assembly coupler (wireharness side).• Is the voltage within specification?Replace the meterassembly.The wiring circuitfrom the main switchto the meter assem-bly coupler is faultyand must be re-paired.YYVWPBBr/LY/BBr/L DgBrCh2 1