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4. Remove the spark plug(s).
1
Figure 31
1. Spark plug wire installed
Checking the Spark Plug
1. Remove spark plug.
2. Look at the center of the spark plug(s) (Fig. 32). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means the air cleaner is dirty.
Important
Never clean the spark plug(s). Always
replace the spark plug(s) when it has: a black coating,
worn electrodes, an oily film, or cracks.
3. Check the gap between the center and side electrodes
(Fig. 32). Bend the side electrode (Fig. 32) if the gap is
not correct.
2
1
Figure 32
1. Center electrode insulator
2. Side electrode
Installing the Spark Plug
1. Install the spark plug(s). Make sure the air gap is set
correctly.
2
M-4294
2. Spark plug
3
0.030 inch
(.75 mm)
3. Air gap (not to scale)
(s)
33
2. Tighten the spark plug(s) to 11 ft-lb (15 NS m).
3. Push the wire(s) onto the spark plug(s) (Fig. 31).
Fuse Service
Service Interval/Specification
The electrical system is protected by a fuse. It requires no
maintenance. If the fuse blows check component or circuit
for malfunction or short. To replace fuse pull out on the
fuse (Fig. 33) to remove or replace it.
Fuse: F1– 10 amp, blade-type
Figure 33
1. Fuse, 10 amp
Battery Service
Warning
CALIFORNIA
Proposition 65 Warning
Battery posts, terminals, and related accessories
contain lead and lead compounds, chemicals
known to the State of California to cause cancer
and reproductive harm. Wash hands after
handling.
Service Interval/Specification
Always keep the battery clean and fully charged. Use a
paper towel to clean the battery case. If the battery
terminals are corroded, clean them with a solution of four
parts water and one part baking soda. Apply a light
coating of grease to the battery terminals to prevent
corrosion.
Voltage: 12 v, 300 Cold Cranking Amps
1
m–5391
m–5390
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