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Spark Plug W ire
Figure 26
oE3341
2.Clean the electrodes
by scraping
with a
wire brush toremove carbon deposits.
3.Inspect for c racked porcelain
orother
wear and damage.
Ifany wear or
damage isevident, replace with anew
spark plug.
4.Check the spark plug g ap and reset if
necessary.
The correct gap should be
.030 inches (.75 mm). To change the
gap, bend o nly t he side electrode
using
aspark plug t ool.
j2
J
q
|.030 in.
_
(_75mm)
1. Center
Electrode
Insulator
2. Side Electrode
3. Air Gap (Not to Scale)
Figure 27
5. Install and tighten
the spark plug to 22
N.m (16 ft. Ibs.). Reconnect
the spark
plug wire lead.
See the engine operator's
manual
for the
recommended
spark plug.
COOLING
SYSTEM
CLEANING
Before each use check to make sure the air
intake screen is free from grass and debris
and clean if necessary.
Every 100 hours of operation, check and
clean the cooling fins and inside the engine
shrouds to remove grass, chaff or dirt
clogging the cooling system and causing
overheating.
CAUTION:
Do not run the engine
_l_
before all cooling system parts
are reinstalled to keep the cooling
and carburetion
as intended.
TIRE AND WHEEL
SERVICE
CAUTION:
Separation of a tire
and rim can cause an explosion
that could cause serious injury or
death.
Check the tires for low pressure,
cuts, bubbles, damaged rims, or
missing lug bolts and nuts.
Always use a clip-on chuck with
an extension long enough to allow
you to stand on one side of the
wheel while inflating the tires. Do
not stand directly in front of the
tire while inflating.
Never weld or heat a tire and
wheel assembly. The heat can
cause the air inside of the tire to
expand and result in a tire
explosion. Welding also can
structurally weaken or deform the
wheel.
Visually inspect the tires before each use. Do
not run the tires under- or over-inflated
which
can cause tire damage. The correct tire
pressure for the front tires is 20 p.s.i.
(82.7 kpa) and rear wheels is 12 p.s.i. (137.9
kpa) (see figure 28).
When reinstalling the wheel after service, be
sure to torque the nuts to 75 ft. Ibs. (101
N°m). Drive 200 - 250 yards and then re-
torque.
Under
Over
Inflated
Normal
Inflated
Figure 28
GB - 36
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