Troubleshooting - MTD PR600N21RH Operator's Manual

ENGINE
FUEL SYSTEM
IMPORTANT: It is important to prevent gum
deposits from forming in essential fuel system
parts such as carburetor, fuel filter, fuel hose,
or tankduring storage. Alcohol blended fuels
(called gasohol or using ethanol or methanol)
can attract moisture which leads to separa-
tion and formation of acids during storage.
Acidic gas can damage the fuel system of
an engine while in storage.
• Drain the fuel tank.
o Start the engine and let it run until the
fuel lines and carburetor are empty.
• Never use engine or carburetor cleaner
products in the fuel tank or permanent
damage may occur.
• Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable al-
ternative in minimizing the formation of fuel
gum deposits during storage. Add stabilizer
to gasoline in fuel tank or storage container.
Always follow the mix ratio found on stabilizer
container. Run engine at least 10 minutes
after adding stabilizer to allow the stabilizer
to reach the carburetor. Do not drain the gas
tank and carburetor if using fuel stabilizer.
ENGINE OIL
Drain oil (with engine warm) and replace
with clean oil. (See "ENGINE" in the Main-
tenance section of this manual).
CYLINDER
o Remove spark plug_
° Pour one ounce (29 ml) of oil through
spark plug hole into cylinder°
° Pull starter handle slowly to distribute oil.
= Replace with new spark plug_
BATTERY (IF EQUIPPED)
Disconnect the battery from the engine
connector and charge battery 48 hours_
OTHER
• Do not store gasoline from one season
to another.
• Replace your gasoline can if your can
starts to rusL Rust and/or dirt in your
gasoline will cause problems.
• If possible, store your unit indoors and
cover it to protect it from dust and dirt.
• Cover your unit with a suitable protective
cover that does not retain moisture. Do
not use plastic. Plastic cannot breathe,
which allows condensation to form and
will cause your unit to rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are still warm.
_CAUTION: Never store the lawn mower
with gasoline in the tank inside a building
where fumes may reach an open flame
or spark. Allow the engine to cool before
storing in any enclosure.
TROUBLESHOOTING - See appropriate section in manual unless directed
to an authorized Service Center.
PROBLEM CAUSE CORRECTION
Does not start 1. Dirty air filter. 1, Clean/replace air filter.
2, Out of fuel 2, Fill fuel tank.
3, Stale fuel.
4. Water in fuel.
5_ Spark plug wire is
disconnected.
6. Bad spark plug.
7. Loose blade or broken
blade adapter.
8. Control bar in released
position.
9. Control bar defective.
10. Fuel valve lever (if so
equipped) in OFF position.
11. Weak battery (if equipped).
12_Disconnected battery
connector (if equipped).
3. Drain fuel tank and refill tank
with fresh, clean gasoline.
4. Drain fuel tank and refill tank
with fresh, clean gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Tighten blade bolt or
replace blade adapter.
8. Depress control bar to
handle.
9. Replace control bar_
10.Turn fuel valve lever
to the ON position.
11. Charge battery.
12. Connect battery to engine.
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