2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 344Get this manual

SIGNAL SYSTEM SIGNAL SYSTEM CHECK 1.Horn does not sound1HORN" switchRefer to "SWITCH INSPECTION"CORRECT 2.Voltage

INCORRECT

Replace the horn switch
Connect the pocket tester (DC 20 V) to the horn leadTester (+) lead Pink lead Tester () lead Frame ground

Turn the main switch to "ON"Push the "HORN" switchCheck for voltage (12 V) on the "Pink" lead at the horn terminalMEETS SPECIFICATION

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives