Gasoline Engine » Operator's Manual
TROUBLESHOOTING
Start
Engine
Difficultly
(By
using recoil
starter)
TROUBLE CAUSE REMEDY
Fuel supply
is
not
smooth
or
no fuel supply
1.
There
is
no enough fuel in fuel
tank
and fuel
1. Fill fuel, open fuel cock.
E
cock
is
closed.
2.
Dredge air vent.
Q)
2.
Air
vent
in
the
fuel
filler
cap
is
clogged
3. Clean
first
and then dredge
......
~
~
V'l
3.
Fuel cock
is
clogged
4. Readjust
or
clean, blow
to
get through
....
a:;
ra
::I
a.
-
4. Improper
or
clogged main oil
flow
hole
5.
Dismantle needle valve and repair, clean,
V'l
Q)
bO
.s::.
::I
......
5.
Needle valve is
not
closed properly
or
start
blow
to
get
through
a.
.s::.
......
~
"3:
hole
is
clogged
6. Repair
float
....
ra
a.
bO
V'l
c
6.
Float
is
damaged
or
sticking
"iii
0
....
E
==
....
bO
c
0
c
Fuel supply
is
normal
1. Replace
0
z
:c
"iii
......
V'l
Q)
1.
Fuel
is
too
filthy
or
deterioratd
2.
Replace
Q)
E
....
a.
0
E
V)
2.
There
is
water
in fuel
3.
Drain extra fuel, diy up spark plug electrodes
0
u
3.
Too much fuel in engine
4. Select proper fuel brand corresponding
....
Q)
"'C
with
the
requirements . . !:
4.
Wrong
fuel brand
~
"iii
c
Spark plug
is
in bad conditions
E
0
....
"iii
0
1.
Too much carbon deposit and
dirt
around z
c
1. Clear away.
Q)~
......
....
J
ra
electrodes
E
.s::.
a.
2.
Replace spark plug .
Q)
•
!!!!
V'l
......
.s::.
Q)
2.
Electrodes are birni damaged seriously
or
~
- c
3. Adjust
to
proper value.
ra
·-
insulators damaged.
V'l
E-
>-
....
a.
0
a.
z
3.
Improper electrodes gap.
::I
V'l
a:;
::I
Q)
Normal spark plug
-
"iii
.!:
1. Replace
E
c~
1.
High tension line
is
damaged.
....
0
....
2.
Replace
0
"iii
ra
z
a.
2.
Ignition coil
is
damaged
c
V'l
Q)
3. Replace
......
0
J
c
3.
Magneto loses magnetism
.s::.
bO
4. Adjust gap between ignition and flywheel
:C
4. Wrong gap between ignition coil
and
flywheel
1. Replace
c
1.
Piston ring
is
worn
to
or
even over its
wear
2.
Replace
0
"iii
E
limit
3. Clear up carbon fouling
V'l
Q)
Q)
......
....
V'l
bO
2.
Piston ring
is
broken
a.
>-
::I
4. Tighten
with
a gasket in
E
V'l
a.
0
>-
3.
Piston ring
is
sticking
u
a.
~
5.
Check cylinder gasket,
and
the flatness
....
....
a.
ra
Q)
::I
a.
4. Spark plug
is
not
installed tighten
or
"'C
V'l
V'l
of
the surface by which cylinder block
c
a:;
"iii
>
::I
E
without
a gasket
contacting
with
cylinder
head
u
-
....
"iii
"iii
0
5.
Air
leakage between cylinder block and
Tighten cylinder head bolts in stipulated
E
E
z
....
....
cylinder head
0
0
order
to
stipulated torque.
c
z
..c
6.
Air
leakage in
the
valves
6. Check valve. Clearance and tightness,
<(
repair
if
necessary.
16
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