Exmark Metro 21 - Manual (Page 27)

23
Troubleshooting
Exmark designed and built your lawn mower for trouble-free operation. Check the following components and items
carefully, and refer to Maintenance on page 14 for more information. If a problem continues, contact an Authorized
Service Dealer.
Problem Possible Causes Corrective Action
Engine does not start 1. The fuel tank is empty or the
fuel system contains stale fuel.
2. The throttle lever is not in the
Choke position.
3. The wire is not connected to
the spark plug.
4. The spark plug is pitted, fouled,
or the gap is incorrect.
1. Drain and/or fill the fuel tank
with fresh gasoline. If the
problem persists, contact an
Authorized Service Dealer.
2. Move the throttle lever to the
Choke position.
3. Connect the wire to the spark
plug.
4. Check the spark plug and
adjust the gap if necessary.
Replace the spark plug if it is
pitted, fouled, or cracked.
Engine starts hard or loses power 1. The fuel tank contains stale
fuel.
2. The fuel cap vent hole is
plugged.
3. The air cleaner elements are
dirty and are restricting the air
flow.
4. The underside of the lawn
mower housing contains
clippings and debris.
5. The spark plug is pitted, fouled,
or the gap is incorrect.
6. The engine oil level is low or
the oil is dirty.
1. Drain and fill the fuel tank with
fresh gasoline.
2. Clean the fuel cap vent hole or
replace the fuel cap.
3. Service the air cleaner
elements.
4. Clean under the lawn mower
housing.
5. Check the spark plug and
adjust the gap if necessary.
Replace the spark plug if it is
pitted, fouled, or cracked.
6. Check the engine oil. Change
the oil if it is dirty or add oil if it
is low.
Engine runs rough 1. The wire is not connected to
the spark plug.
2. The spark plug is pitted, fouled,
or the gap is incorrect.
3. The throttle lever is not in the
Fast position.
4. The air cleaner elements are
dirty and are restricting the air
flow.
1. Connect the wire to the spark
plug.
2. Check the spark plug and
adjust the gap if necessary.
Replace the spark plug if it is
pitted, fouled, or cracked.
3. Move the throttle lever to the
Fast position.
4. Service the air cleaner
elements.