rrouble
Vo
or little
;park
No
or
little com-
pression
No
fuel
feed
Excessive
fuel
suction
Excessive
resistance
to starting
Cause
Magneto defective
Electrical system
defective
Fuel leaks from
gaskets
or
other
Piston defective
Fuel tank defective
Carburetor
defective
Carburetor
defective
Excessive load
Piston or
connecting rod
sticky
Remedy
(1)
If coil is broken or its insulation defective,
replace magneto with a new one.
(2)
If magnetism
has
decreased, have it remag-
netized at magneto manufacturer's or
replace magneto.with
a
new one.
~~ ~ ~~
(1)
If stop button is defective (grounded),
(2)
If primary wire is grounded to the engine
repair or replace it.
body, insulate it with tape.
(1)
If head gasket is defective, replace it
(2) If spark plug is loose, retighten it securely.
(3)
If spark plug is defective, replace
it
with
with a new one.
a new one.
(1)
If piston is worn, replace it with a new one.
(2) If piston rings are worn, replace them
with new ones.
(1)
Clean tank outlet if clogged up.
(2)
Clean fuel strainer if clogged up.
(3)
If wrong fuel is used or if water is in fuel
(4)
If air is trapped in fuel pipe, discharge air.
tank, change fuel.
(1) Clean carburetor if clogged up.
(2) Replace carburetor with a new one if
defective.
Clean jets and orifices
if
clogged up.
'
(1)
Fully open choke, half open throttle valve,
(2j Remove crankcase drain plug, close fuel cock,
and start engine.
actuate starter a few times to discharge
excess fuel.
(1)
If carburetor overflows, check needle
valve seat for wear, and replace if
necessary.
(1
j
Adjust power transmission belt tension
(2)
If it is still hard to start, install
a
clutch.
if
too high.
(1)
If
piston
is
sticky, replace it with a new one.
(2)
If
connecting rod is sticky at large or
small end, replace it with a new one.
Preventive
hints
[l)
Keep air cleaner clean.
:2)
Do
not use lowquality oil.
(3)
Change
oil
periodically.
(1)
Pour fuel into the fuel tank
(2)
Use gasoline-oil
(25
to
1)
through filter.
mixture.
(1)
Never close choke if engine
(2)
Be sure to idle engine for
is warm.
some time before stopping it.
This'not only
makes
next
.
starting easy but helps extend
engine life.
(3)
Completely clean air cleaner
because a clogged up
air
cleaner thickness
fuel.
(1)
Do
not use lowquality oil.
(2) Use-fuel of correct gasoline-
oil
ratio.
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17
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