IGNITION
SPARK PLUGS
SPARK PLUGS
Remove and inspect the spark plugs for the fol-
lowing
conditions:
• Worn electrodes
• Cracked insulator
•
Dirty spark plugs
Replace all defective spark plugs.
Before installing the spark plug lead cover
on
the
spark
plug, apply a light coating of Electrical
Grease
to the ribbed portion of the spark plug
ceramic and to the opening of the spark plug
cover. See table below for recommended spark
plug data and gap setting.
Spark
Plug, Champion
Models
Recommended
9.9/15
QL82C @ 0.030
in.
(0.8 mm)
25,30
QL77JC4 @ 0.030 in. (0.8 mm)
Removal
m WARNING m
To
prevent accidental starting
while
ser-
vicing,
twist
and remove all
spark
plug
leads.
Remove the flywheel nut.
Use
a Flywheel Holding
Tool
and
three screws,
PIN
307641, from Univer-
sal
Puller Set,
PIN
378103, or Flywheel Holder,
PIN
771311.
IMPORTANT: Use of non-suppression spark Flywheel
Holding
Tool
32927
plugs will cause ignition problems.
r------------=----=--------...,
FLYWHEEL SERVICING
IMPORTANT:
In
order
to
produce the voltage
necessary to
run
an
ignition system, the flywheel
magnets must be of a particular strength. Weak
flywheel magnets
can
cause low ignition voltage
which would affect engine performance. Weak fly-
wheel
magnets
can
also cause low readings
on
ignition test equipment such
as
the peak-reading
voltmeter, which might cause unnecessary
replacement of ignition components.
An
accurate test of alternator output can help
determine flywheel condition. Refer to Running
Alternator
Output
Test
on
p.
85.
128
Flywheel
Holder
32640
Apply Moly Lube
to
threads of pressing screw and
center
hole of crankshaft.
To Next Page
Loading...
Need help?
General
