Briggs & Stratton 21000 Series Operating & Maintenance Instructions page 9

Changing OH & Checking Level
Change oil after first 4 hours of use, then every 8 hours.
Change oil every 4 hours when operating the engine
under heavy load or in high temperatures.
WARNING
_ * Disconnect spark plug
wire and keep it away
from spark plug.
1. Change oil while engine is OFF but still warm,
ensure fuel cap is tightened securely.
2. Remove dipstick and drain oil in direction shown.
3. Place engine level. Using oil measure cup pour oil
slowly adding half ounce at a time. Do not over
fill.
Note: Engine holds approximately 3 oz (90 ml).
4. To re-check oil level, remove dipstick and wipe
clean with cloth. Tighten dipstick down. Remove
and check oil level.
5. Replace dipstick tightly, and reconnect spark plug
wire before starting engine.
CAUTION
Used oi! is a hazardous waste product. Dispose
of used oil properly. Do not discard with
household waste. Check with your local
authorities, service center, or dealer for safe
disposal/recycling facilities.
Oil
Fill