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Troubleshooting - Craftsman 917.379680 Owner's Manual

6.5 horsepower 22" rear discharge power propelled rotary lawn mower

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ENGINEOIL
Drain oil (with engine warm) and replace with
clean engine oil. (See "ENGINE" in the
Maintenance section of thismanual).
CYLINDER
• Remove spark plug.
• Pour one ounce (29 ml) of oilthroughspark
plug hole into cylinder.
• Pull starter handle slowlya few times to
distributeoil.
• Replace with new spark plug.
OTHER
• Do notstore gasolinefrom one season to
another.
TROUBLESHOOTING CHART
PROBLEM
CAUSE
Does not start
1. Dirtyairfilter.
g,
Loss of power
1.
2.
3.
4.
5.
6.
Poor cut- uneven
1.
2.
3.
• Replace your gasoline can if your can
startsto rust. Rust and/or did in your
gasolinewill cause problems.
• If possible,storeyour unitindeom and
cover itto give protactioofrom dust and dirt.
• Cover your unitwith a suitableprotective
oover that does not retainmo'_ture. Do
not use plastic. Plastic cannotbreathe
which allows condensationto form and will
cause your unit to rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are stillwarm.
ACAUTION:
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.
2.
Out of fuel.
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. Cantrol bar in released
position.
Control bar defective.
Rear of lawn mower housin
or cutting blade dragging
in heavy grass.
Cutting too much grass.
Dirty air fiifer.
Buildupof grass, leaves,
and trash under mower.
Too much oil in engine.
Walking speed too fast.
Wom, bent or loose blade.
Wheel heights uneven.
Buildup of grass, leaves
and trash under mower.
CORREC_ON
1. Clean/replace air iflter.
2.
Fill fuel tank.
3.
Drain tank and refill with
fresh clean fuel.
4.
Drain fuel tank and
carburetor and refill tank
with fresh gasoline.
'5.
Cooneot wire to plug.
6.
Replace spark plug.
7.
Tighten blade bolt or
replace blade adapter.
8.
Depress controlbar to
handle.
9.
Replace controlbar.
1. Set to"HigherCut"
position.
2. Set to"HigherCut"
position.
3. Clean/replaceair filter.
4. Clean underside of mower
housing.
5. Checkoillevel.
6. Cutat slowerwelldng
speed.
1. Replace blade. Tighten
blade bolt.
2.
Set all wbaela at same
height
3.
Clean underside of
mower housing.
17

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