Yamaha RAPTOR YFM125RA Service Manual page 295

TROUBLESHOOTING
Tail/brake light does not come on
• Wrong tail/brake light bulb
• Too many electrical accessories
• Incorrect connection
• Burnt-out tail/brake light bulb
Tail/brake light bulb burnt out
• Wrong tail/brake light bulb
• Faulty battery
• Incorrectly adjusted rear brake light switch
• Tail/brake light bulb life expired
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