1. Unscrew the wingnut. Remove the air filter cover.
Wingnut
See SPECIFICATIONS for rated oil capacity; Page 10.
2. Remove the filter element.
3. Clear away internal dirt and debris.
4. Replace the filter.
5. Reinstall the air cover filter, tighten the wingnut.
Dipstick
6. See SPECIFICATIONS (Page 10) for rated oil; fill to the upper
limit. Reinstall and fully tighten the dipstick.
7. After the spark plug is seated, use a toque wrench to tighten
to 15-18 ft. lb. (20 – 25 N.m)