Troubleshooting - Ariens Pro 21 Manual

FUEL SYSTEM
Gasoline left in the fuel system for extended
periods without a stabilizer will deteriorate,
resulting in gum deposits in the system.
These deposits can damage the carburetor
and the fuel hoses, filter and tank. Prevent
deposits from forming in the fuel system
during storage by adding a quality fuel
stabilizer to the fuel. Follow the
recommended mix ratio found on the fuel
stabilizer container.
PROBLEM
Engine will
not start
Engine is
difficult to
restart
Cut is poor
Grass does
not disperse
evenly
Mower does
not bag
clippings

TROUBLESHOOTING

PROBABLE CAUSE
1. Fuel tank empty or low.
2. Fuel shutoff valve closed.
3. Spark plug wire loose or off.
4. Engine/Blade control cable
detached, broken, or not
adjusted properly.
1. Mower clogged with grass.
1. Worn blade.
2. Too much grass is being
removed per cutting.
3. Grass is too wet.
4. Mowing speed is too fast.
5. Uneven deck.
1. Too much grass is being
removed per cutting.
2. Grass is too wet.
3. Mowing speed is too fast.
1. Grass bag is overfilled.
2. Mulching plug is installed.
To treat the fuel system for storage:
1. Add fuel stabilizer according to
manufacturer's instructions.
2. Run engine for at least 10 minutes after
adding stabilizer to allow it to reach the
carburetor.
NEVER store the engine with fuel in the fuel
tank inside of a building with potential
sources of ignition.
CORRECTION
GB - 24
1. Check fuel level. Fill tank if
necessary (see FILLING
THE FUEL TANK on
page 12).
2. Open fuel shutoff valve.
3. Check connection.
4. Check cable. Adjust, repair
or replace as necessary.
1. Clear clippings from under
mower. (Allow the mower to
clear clippings before
shutting off engine.)
1. Check blade (see CHECK
MOWER BLADE on
page 17).
2. Raise cutting height.
3. Allow grass to dry.
4. Mow slower.
5. Set level deck height.
1. Raise cutting height.
2. Allow grass to dry.
3. Mow slower.
1. Empty grass bag and do not
allow it to overfill.
2. Remove mulching plug.