Honda XR400 Manual page 45

Maintenance
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 SHOULD BE SERVICED BY AN AUTHORISED HONDA DEALER, UNLESS THE OWNER
HAS PROPER TOOLS AND SERVICE DATA AND IS MECHANICALLY QUALIFIED, REFER
TO THE OFFICIAL HONDA SHOP MANUAL.
  IN THE INTEREST OF SAFETY, WE RECOMMEND THESE ITEMS BE
SERVICED ONLY BY YOUR AUTHORISED HONDA DEALER.
Honda recommends that your authorised Honda dealer should road test your motorcycle after each
periodic maintenance is carried out.
NOTES: 1.
2.
3.
4.
At higher odometer readings, repeat at the frequency interval
established here.
Service more frequently when riding in unusually wet or dusty areas.
Service more frequently when riding in rain or at full throttle.
Replace every 2 years, or at indicated odometer interval, whichever
comes first. Replacement requires mechanical skill.
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