Yamaha XC200T Service Manual page 196

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Taillight Troubleshooting
COME ON.
Check main fuse. Replace.
Check taillight bulbs. Replace.
,_OK NO
" t
Measure voltage (12V) on "Brown" lead from Check main switch and battery.
main switch ("ON" position).
Poor ground or poor connection of taillight
wiring.
6-35
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