Carburetor; Diagnosis Of - Robin EC03ER Service Manual

5. CARBURETOR
-
b
.
-.
. .-
5-1
-
DIAGNOSIS OF TROUBLES
0
Engine does not. start.
, .
Carburetor needle valve- is held open by dirt or gum. (See remedy 1)
'
.
Pilot, jet is partially clogged. (See' remedy.
2 )
. .
..
.
. .
. .
@ Unstable engine operation.
, .
Carburetor needle valve is held open by
dirt or gum. (See remedy
1.)
Main jet is partially clogged. (See
remedy 3)
Pilot jet is partially clogged. (See remedy
2)
Main jet is partially clogged. (See remedy 3)
.
-
,
-
@
Carburetor floods.
. .
Carburetor needle valve is held open by dirt or gum: (See remedy-
1)-
..
@ Idling speed is high or slow.
. .
. .
Adjust. the slow speed screw. (See remedy
4)
"
@ Engine exhausts white smoke.
5 - 2 REMEDY FOR TROUBLES
L "
. .
Remedy 1
(2) Remove float chamber from body.
"
(1) Remove' fuel strainer' from body.'
:
(3) If needle valve. is
.
held open, disassemble
float and clean needle valve and fuel line
;in kerosene and blow the remai.nings with
compressed air. (See Fig. 29.)
'
(4)
Clean fuel strainer in kerosene.
(5) Attach needle valve and float to body.
(6)
Attach float chamber to body.
I
TIGHTENING
TORQUE
I
70 kgf
cm
685 N' . .'
cm
..
(7)
Attach ,fuel strainer to. body.
FUEL STRAINER
4
T
..
Fig.
29
TIGHTENING TORQUE
35 kgf cm .
.
. .
. I
345 N cm
-
30 LB
' : +
. .
. .
, _
. .
.
I , .
.
.
.
..
. I
. .
, -