T
R
O
U
B
L
E
The compression ratio is
fine
Engine overheats
Engine noisy or knocking
(3)Engine stops while running
T
R
O
U
B
L
E
Engine stops suddenly
The engine stops slowly
(4)Engine hard to stop
T
R
O
U
B
L
Throttle handle put to the
lowest position, the engine still
runs .
1. The filter plate clogged
2 . A i r p a s s e s t h r o u g h t h e
connection of carburetor
3.Engine overheat
. 4
W
t a
r e
n i
5.The carbon clogs mu
1.Mixed gas (fuel) thin
2.Cylinder covered with carbon
3.Oil bad
4.No connection with hose
1
F .
u
l e
b
a
d
. 2
C
a
b r
o
n
3.The running parts wore and
tore.
1.The lead wire of plug loose
2.Piston bitten
3.Plug covered with carbon
4.Fuel used up
1.Carburetter clogged
2.The air hole in the tank clogged
3.Water in fuel
E
The throttle cord is short or
piston of carburetter blocked.
C
A
U
S
E
u f
l e
er
n i
c
l y
n i
d
r e
C
A
U
S
E
C
A
U
S
E
-12-
R
E
M
E
Clean
Tighten
Stop the engine and cool it
R
efi
ll with fresh fuel
Clean
Adjust the carburetor.
Clean
Use 2-T engine oil and adjust the
mix ration.
Correctly assemble the machine
R
e
p
a l
C
e l
a
Check and replace
R
E
M
Replace firmly
Change or remedy
Clean plug
Fill the fuel tank
Clean
Clean
Refi ll with fresh fuel
R
E
M
Adjust the cord or remedy the
carburetter.
D
Y
c
e
n
E
D
Y
E
D
Y