Spark Plug - Craftsman 917.378990 Owner's Manual

MUFFLER
Inspect and replacecorroded muffler as it
could create a fire hazardand/or damage.
SPARK PLUG
Replacespark plug at the beginningof
each mowingseason or after every t00
hoursof operation,whicheveroccurs
first. Spark plug type and gap setting
are shown in the "PRODUCTSPECIFIC-
ATIONS"sectionof this manual.
CLEANING
iMPORTANT: For best performance,keep
mowerhousingfree of built-upgrass and
trash. Cleanthe undersideof your mower
after each use.
_I.CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with plug.
* Clean the underside of your lawn mower
by scraping to remove build-up of grass
and trash.
. Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
. Keep finished surfaces and wheels free
of all gasoline, oil, etc.
. We do not recommend using a garden
hose to clean lawn mower unless the
electrical system, muffler, air filter and
carburetor are covered to keep water
out. Water in engine can result in short-
ened engine life.
CLEAN UNDER DRmVECOVER
Clean under drive cover at least twice a
season. Scrape underside of cover with
putty knife or similar tool to remove any
build-up of trash or grass on underside of
drive cover,
_LWARNmNG: To avoid serious injury, before
performing any service or adjustments:
1. Release control bar and stop engine.
2. Make sure the blade and all moving
parts have completely stopped.
3. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with plug.
LAWN MOWER
TO ADJUST CUTTmNG HEIGHT
See "TO ADJUST CUTTING HEIGHT" in
the Operation section of this manual,
REAR DEFLECTOR
The rear deflector, attached between the
rear wheels of your mower, is provided to
minimize the possibility that objects will
be thrown out of the rear of the mower
into the operator's mowing position. If the
deflector becomes damaged, it should be
replaced.
TO REMOVE DRmVE BELT
1. Remove drive cover. Remove belt from
gearcase pulley by pushing down on
pulley and rolling belt off it.
2, Turn lawn mower on its side with air
filter and carburetor up,
3, Remove blade.
4, Remove debris shield.
5, Remove belt from engine pulley on
crankshaft,
TO REPLACE DRmVE BELT
1. Install new belt on engine pulley.
2. Reinstall debris shield and blade.
3. Return mower to upright position.
4. Install new belt on gearcase pulley.
5. Reinstall drive cover.
NOTE: Always use factory approved belt
to assure fit and long life.
Drive
cover Belt
PUSH DOWN
TO ADJUST HANDLE
The handle can be mounted in a high or
low position. The mounting holes in the
bottom of lower handle are off center for
raising or lowering the handle.
1. Remove upper handle and all wire
tie(s) securing cable(s) to lower handle.
2. Remove hairpin cotters from lower
handle bracket mounting pin.
3. Squeeze lower handle in to remove it
from mounting pins.
4. Turn lower handle over to raise or
lower handle.
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