SMC Networks ATV50 - Fuel System Troubleshooting; Poor Engine Start; Engine Idles Unsteadly, Stalls ​Or Runs Poorly; Lean Mixture;Rich Mixture

4-
0
Po
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En
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Le
a
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Ri
c
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Int
e
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0
3. Trou
b
or engi
n
No fuel i
n
Clogged
f
Too muc
h
No spark
Clogged
gine idl
e
Imprope
r
Ignition
m
Fuel/air
m
Air clean
e
Insulatio
n
Fuel tan
k
a
n Mixtu
Fuel jet
o
Fuel tan
k
Fuel flow
Float lev
e
Vacuum
c
h Mixtu
r
Float ne
e
Float lev
e
Air duct i
n
Air clean
e
e
rmitten
Malfuncti
b
le Shoo
n
e start
n
fuel tank
fuel tube
h
fuel in c
y
from spa
r
air cleane
r
e
s unste
a
r
adjustme
n
m
alfunctio
n
m
ixture rat
i
e
r dirty
n
leakage
k
cap brea
t
u
re
o
f carburet
o
k
cap brea
t
s in the tu
b
e
l in carbu
r
piston stic
k
r
e
e
dle valve
i
e
l too high
n
carburet
o
e
r elemen
t
tly misfi
on of ignit
i
S
M
ting
y
linde
r
r
k plug(ma
l
r
a
dy, stal
n
t to the
n
i
o not goo
d
t
hing hole
c
o
r clogged
t
hing hole
c
b
e unsmo
o
r
etor too l
o
k
and clos
e
i
n carbure
t
o
r is clogg
t
dirty
re as ac
c
i
on syste
m
M
C AT
V
5
l
function o
f
l or run
s
idle speed
d
c
logged
c
logged
o
th.
o
w.
e
d
t
or faulty
ed
c
elerati
o
m
5
/10
0
S
e
f ignition
s
s
poorly
d
screw
o
n
e
rvice
M
s
ystem )
M
anua
l
Chapt
e
er 4 Fuel
S
-
3
S
ystem
3
9 -