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D
TIlE FUEL
SYSTEM
Fig. D.?
A section through the carburetter showing:
1. Jet loekini nut.
S.
Piston lifting pin.
2. Jet adjusting nut.
6. Needle securing screw.
3. Jet head.
7. Piston damper oil well.
4. Nylon fuel pipe.
AIR CLEANER
Renew the filter element at the recommended
periods~
Removing
(1)
Unscrew the wing nut at the top
of
the cleaner,.
remove the cover and extract the element.
,.
Section D.7
Linkage adjustment, Fig.
D.S
(35)
Disconnect the choke cable. With the throttle shaft
levers free on the shaft, put a
·012
in.
(·30
mm.)
feeler between the shaft stop and the choke inter-
connecting spindle. Move each throttle lever
downwards until the pin rests
lightly
on the lower
arm of the fork in the carburetter throttle lever.
Tighten the clamp of the throttle shaft lever.
When both carburetters are adjusted the pins
OD
the throttle levers should then have the correct
clearance in the forks. Re-connect the choke
c~ble
and ensure that the jet heads return against the •
jet adjusting nuts when the choke knob is pushed
.__
fully in. Adjust the fast idling screws.
... ~
...
,.~:,,;~
decreases the mixture is too weak; if the engine- •
speed momentarily increases very slightly the"·,=
Y
mixture is correct.
(33)
Repeat
(32)
on the right-hand carburetter.
(34) Re-adjust the slow-running speed as necessary.
4
A6279
3
6
Refitting
(2)
Reverse the removal procedure
.'
-_._--
~
- - -
Fig.
D.S
The feeler between the throttle shaft stop and the choke
interconnecting spindle
MINI. Issue 1. . 4908
Mixture
(31)
Carry out instructions
(20)
to
(23)
on each car-
buretter moving both nuts the same number of
turns.
(32)
Raise the piston on the left-hand carburetter about
if
in.
(-8
mm.). If the engine speed increases the
mixture is too rich;
if
the engine speed immediately
:~;.8
~:
Flooding
This may be caused by' an incorrect float level or by a
':,'::,;;.:).1 aulty needle valve.
'':t~\''':\
.\-' "(28)
Remove, clean, and inspect the needle valve and
seating; fit a new assembly if necessary.
(29)
Check the float level.
COOPER
SJow-running
,~d'.
'(30) ·As instruction (19) but turn both screws an equal
amount. Listen to the hiss at the carburetter intake
and adjust the screws until the intensity of the hiss
at each is the same.
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