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84
EleGtrical
,ystem
-
confd
Trouble
-
Carbon
is
deposited on
spark
plug
ele<,trodes.
Spark
plug
electrodes are
foul
.
I
-
Spark
plug
electrodes
overheat
or bum.
I
VI. SERVICEDATA
.Probable
cause
I.
Rich
fuel-air
mix
lure
2.
Idle speed
too
high
3.
Improper
g:isoline
4.
Clogged air cleaner element
S. Use of cold type pllt!l$
1.
Worn
piston rings
2
Worn
pistons
or
cylinders
3.
Excessive clearance
between valve
guide and valve
I. Use of hot type plugs
2 Engine
overheating
3.
Incorrect ignition timing
4.
Loose spark plugs
5. Lean fuel-air mixture
Remedy
Adjust
carburetor
Adjust carburetor
Change
Clean
Replace
by
hot
type
plugs
Replace
Replace
Replace
Replace by cold type
plugs
Adjust
Retighten
- - - - - - - -
Adjust
carburetor
-
--
- !
Generator
will
not charge
battery.
Ge.neralor charges battery
insufficiently_
1.
Open or shon cin::uit in wiring,
or
loose
connections
2.
Defective generator
coil
due to short or
open
circL1it
1
or
grounding
3.
Damaged
silicon
diodes
4. Short circuit
in
regulator
leads
S.
Regulator voltage under no load is
below
specification
I.
Wiring
Repair or
replace
Replace
Replace
Repair
or
replace
Adjust
•
Open
or short circuit,
or loose connect.ions
Repair
or retighteo
2.
Generator
•
Short
circuit in
field coil
Replace
(Check
resistanc,,
by
continuity
test)
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