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Husqvarna 6521RS - 650 Series Briggs and Stratton Engine Manual

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Handle pin
Handle
bracket
SQUEEZE
ENGINE
FUEL SYS TEM
IMPORTANT: It is important to prevent
gum deposits from forming in essential
fuel system parts such as carburetor, fuel
fi lter, fuel hose, or tank during storage.
Alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage.
• Empty the fuel tank by starting the en-
gine and letting it run until the fuel lines
and car bu re tor are empty.
• Never use engine or carburetor cleaner
prod ucts in the fuel tank or permanent
damage may occur.
• Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable
alternative in min i miz ing the formation of
fuel gum deposits during stor age. Add
stabilizer to gasoline in fuel tank or stor-
age container. Always follow the mix ratio
found on stabilizer container. Run engine
at least 10 min utes after adding stabilizer
to allow the stabilizer to reach the car-
buretor. Do not empty the gas tank and
carburetor if using fuel stabilizer.
ENGINE OIL
Drain oil (with engine warm) and replace
with clean engine oil. (See “ENGINE” in
the Maintenance section of this man ual).
CYLINDER
1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
3. Pull starter handle slowly a few times
to dis trib ute oil.
4. Replace with new spark plug.
OTHER
• Do not store gasoline from one season
to another.
• Replace your gasoline can if your can
starts to rust. 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 pro tec -
tive cover that does not retain mois ture.
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 gaso line in the tank in side a
build ing where fumes may reach an open
fl ame or spark. Allow the engine to cool
before storing in any enclosure.
Does not start 1. Dirty air fi lter. 1. Clean/replace air fi lter.
2. Out of fuel. 2. Fill fuel tank.
3. Stale fuel. 3. Empty fuel tank and refi ll tank
with fresh, clean gasoline.
4. Water in fuel. 4. Empty fuel tank and refi ll tank
with fresh, clean gasoline.
5. Spark plug wire disconnected. 5. Connect wire to plug.
6. Bad spark plug. 6. Replace spark plug.
7. Loose blade or broken 7. Tighten blade bolt or
blade adapter. replace blade adapter.
8. Control bar in released 8. Depress control bar to
position. handle.
PROBLEM CAUSE CORRECTION
TROUBLESHOOTING - See appropriate section in manual unless directed
to a Husqvarna Parts & Repair Center.
… 17 …


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