Troubleshooting Chart - Craftsman 917.387256 Owner's Manual

4.0 horsepower 20" rear discharge rotary lawn mower
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ENGINE OIL
Drain oil (with engine warm) and replace with
dean engine oil. (See "ENGINE" in the
Maintenance
sect_n of this manual)
CYLINDER
• Remove spark plug
• Pour one ounce (29 ml) of oil through spark
plug hole intocylinder.
• Pull starter handle slowly a few times to
distributeoil.
• 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 give protection from dust and dirt.
• Cover your unitwith 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
CHART
PROBLEM
Does not start
CAUSE
• Dirty air filter.
• Out of fuel.
• Stale fuel
• Water in fuel.
• Spark plug wire is
disconnected.
• Bad spark plug
• Loose blade or broken blade
adapter.
• Control bar in released
position.
• Control bar defective
CORRECTION
• CleaWreplace air filter.
• Fill fuel tank.
• Drain tank and refillwith
fresh clean fuel.
• Drain fuel tank and
carburetor and refilltank
with fresh gasoline.
• Connect wire to plug.
• Replace spark plug.
• _ghten blade bolt or
replace blade adapter.
• Depress control barto
handle.
• Replace control bar.
14

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