Checking The Spark Plug; Pushing The Mower By Hand; Towing With The Mower - Murray MYZ4219000 Operator's Manual

Checking the Spark Plug

WARNING: Unintentional sparking can result in fire
or electric shock. Unintentional start up can result in
entanglement, traumatic amputation, or laceration.
When you test for spark:
• Use an approved spark plug tester.
• DO NOT check for spark with the spark plug removed.
NOTICE: Spark plugs have different heat ranges.
It is important that the correct spark plug is used,
otherwise engine damage can occur. Replace the spark
plug with the same type or an equivalent one.
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Checking the Spark Plug Gap
Use a spark plug feeler gauge (A) to check the gap between
the two electrodes. When the gap is correct, the gauge will
drag slightly as you pull it through the gap.
To adjust the spark plug gap, use a spark plug gauge and
gently bend the curved electrode. Make sure that you do
not touch the center electrode or the porcelain.
Fig.32
Installing the Spark Plug
Tighten the spark plug with your fingers, and them, tighten
it with a wrench,
• 180 in-lbs, OR
• ½ turn when you install the original spark plug, OR
• ¼ turn when you install a new spark plug
ZERO TURN MOWER
Pushing the Mower By
Hand
Pushing the mower may be necessary for moving the mower
into and out of a garage or shed. It may also be necessary
for loading into and out of a trailer.
1. Shut off the power and stop the engine
2. Disengage the PTO Switch.
3. To engage the bypass-valve lever, pull the lever back and
into the elongated section of irregular slot. Repeat on
opposite side.
4. Ensure the drive control levers are in the neutral position.
5. After moving the mower, reverse Step 1 to disengage the
bypass-valve levers.
ZERO TURN MOWER

Towing with the Mower

• Attach equipment ONLY at the hitch point.
• The total towed weight (trailer and load) must not exceed
400 lbs. and not exceed a tongue weight (up or down) of
20 lbs.
• When towing, do not operate on slopes greater than 5
degrees. The weight of the towed equipment on slopes
can cause loss of traction and loss of control.
• DO NOT let children or others in or on towed equipment.
• DO NOT place the drive control levers in the neutral
position and coast down hill.
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