Robin EH09D - Page 59

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8b-2-2 CHOKE SYSTEM
(1) Remove the philips screws
yy
yy
y and choke valve
uu
uu
u, and pull out the choke shaft
ii
ii
i.
(2) When reassembling the choke shaft, make sure that the cutout in the choke valve faces the pilot air
jet. Meanwhile, when reassembling set the rings
oo
oo
o and
!0!0
!0!0
!0 at the right position.
8b-2-3 PILOT SYSTEM
(1) Remove the pilot jet
!1!1
!1!1
!1, using correct tool to avoid damage to it.
(2) Reassembly
Tighten the pilot jet securely. Otherwise, the fuel may leak, causing engine malfunction.
8b-2-4 MAIN SYSTEM
(1) Remove the bolt
!2!2
!2!2
!2 and take out float chamber body
!3!3
!3!3
!3.
(2) Remove the main jet
!6!6
!6!6
!6 and guide holder
!7!7
!7!7
!7 from the body
!4!4
!4!4
!4 . And then remove the main nozzle
!5!5
!5!5
!5.
(3) Reassembly
a) Fasten the main jet and main nozzle securely to the body. Otherwise, the fuel may become too rich
and cause engine malfunction.
b) The bolt
!2!2
!2!2
!2 tightening torque is 70 kg-cm. Be sure to set the gasket
!9!9
!9!9
!9 and washer
!8!8
!8!8
!8 for chamber
!3!3
!3!3
!3.
8b-2-5 FLOAT SYSTEM
(1) Pull out the float pin
@0@0
@0@0
@0 and remove the float
@1@1
@1@1
@1 and then remove the clip
@2@2
@2@2
@2 and needle valve
@3@3
@3@3
@3. If the
needle valve needs to be replaced, replace it with rubber needle.
(2) When removing the needle valve and float, gently tap the reverse side of the float pin
@0@0
@0@0
@0 using a rod
more slender than the float pin and remove, since the float pin is pressed into the carburetor body.
CAUTION :
When cleaning the jets, use neither a drill nor a wire (because of possible damage of the
orifice which will adversely affect fuel flow). Be sure to use compressed air to blow them
clean.