Checking The Engine Oil Level; Cleaning Under The Housing - Exmark Metro 21 Operator's Manual

If you leave the wire on the spark plug, someone could accidently start the engine and seriously
injure you or other bystanders.
Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so
that it does not accidently contact the spark plug.

Checking the Engine Oil Level

Before you use the lawn mower, ensure that the oil level is
between the lower limit and the upper limit marks as
shown on the dipstick (Fig. 5). If the oil level is below the
lower limit mark, add oil. Refer to Filling the Crankcase
with Oil on page 7.

Cleaning under the Housing

To ensure the best performance, keep the underside of the
housing clean (Fig. 14).
Figure 14
Washing Method
1. Position the lawn mower on a flat concrete or asphalt
surface near a garden hose.
2. Start the engine.
3. Hold the running water at handle level and direct the
water to flow on the ground just in front of the right
rear tire (Fig. 15).
Figure 15
1. Rear right tire
Caution
757
1
1093
15
Note: The water will splash into the blade and clean
out the clippings. Let the water run until you no longer
see clippings being washed out from under the
housing.
4. Stop the engine and wait for all moving parts to stop.
5. Turn off the water.
6. Start the lawn mower again and let it run for a few
minutes to dry out the lawn mower and its
components.
Scraping Method
If the washing method does not remove all the debris from
under the lawn mower, scrape it clean.
1. Disconnect the wire from the spark plug (Fig. 6).
2. Drain the fuel from the fuel tank.
Warning
Tipping the lawn mower may cause the fuel to
leak from the carburetor or the fuel tank.
Gasoline is extremely flammable, highly explosive,
and, under certain conditions, can cause personal
injury or property damage.
Avoid fuel spills by running the engine dry or by
removing the gasoline with a hand pump; never
siphon.
3. Tip the lawn mower onto its left side (air cleaner up)
(Fig. 14).
4. Remove the dirt and grass clippings with a hardwood
scraper. Avoid burrs and sharp edges.
5. Return the lawn mower to the operating position.
6. Fill the fuel tank with fresh gasoline.
7. Connect the wire to the spark plug.