Yamaha XF50W Service Manual page 59

CHK
PERIODIC MAINTENANCE AND MINOR REPAIR
ADJ
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* Since these items require special tools, data and technical skills, have a Yamaha dealer perform
the service.
NOTE:
From 12000mi(19000km) or 36 months, repeat the maintenance intervals starting from
4000mi(7000km) or 12 months.
EAU17680
NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
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