Little Wonder Xtra - Manual (Page 30)

INSUFFICIENT OUTPUT
INSPECTION
Chec
k the spar
k
plug. Chec
k the spar
k.
Chec
k the
compression.
Chec
k if the engine
is o
v
erheating.
PR
OBLEM & FINDINGS
The engine speed does not increase
.
PR
OBABLE CA
USES
A
CTION
Nor
mal.
The plug poles are dir
ty or ha
v
e
condensation.
The spar
k is
nor
mal.
The spar
k is
w
eak.
The compression
is nor
mal.
The compression
is lo
w
.
Nor
mal.
The engine is
ov
erheating.
1.
The piston r
ing is w
o
rn
.
2.
The piston is w
o
rn
.
3.
The spar
k plug and cylinder are not tightened
correctly
.
1.
There are carbon deposits inside the m
uffler
.
2.
There are carbon deposits inside the comb
ustion
chamber and e
xhaust por
t.
3.
Debr
is or dir
t is attached to the cooling fin (cylinder).
4.
The b
lades of the cooling f
an are damaged.
5.
The cooling air path is obstr
ucted b
y
debr
is
.
1.
Replace
.
2.
Replace
.
3.
Tighten as necessar
y.
1.
Clean
2.
Clean
3.
Clean
4.
Replace
5.
Clean
1.
There are carbon deposits in the comb
ustion
chamber
.
2.
The piston and piston pin are w
o
rn
out.
3.
The fuel is incorrect.
1.
Clean
2.
Replace
3.
Replace
.
Remo
v
e
the air
cleaner
, pull the le
v
er
all the w
a
y bac
k and
mak
e
sure the throttle
v
alv
e is open all
the w
a
y.
Chec
k if the engine
is knoc
king.
The engine is not knoc
king.
The engine
is knoc
king.
It opens all
the w
a
y.
It does not open
all the w
a
y.
1.
The air cleaner is clogged.
2.
W
ater is mix
ed in the fuel.
1.
Clean.
2.
Replace
.
The throttle cab
le adjustment is not set correctly
.
Set the cab
le correctly
.
1.
The spar
k plug pole gap is incorrect.
2.
The air gap is incorrect.
1.
Correct or Replace
.
2.
Correct.
30