CPI ARAGON, Service Manual, Page: 46 / 93

CARBURETOR FL-8
Position of the retaining clip
Check whether the retaining clip is seated in the
default notch (counted from above) on the jet
needle (see “technical data”).
The position of the retaining clip has
influence on the A/F mixture when the
engine is running at middle and upper
load. Usually, a deviation from the above setting
is not required, except for extreme operating
conditions. Before changing the clip position on
the jet needle, all other adjustments and
possible failure sources have to be checked.
25 and 30 km/h
Stop collar
Note the different design of the carburetor
covers of the 45 km/h variant and of the
speed-limited variants (Aragon GP:
30 km/h and 25 km/h variants; Formula R and
Aragon: 25 km/h). In the case of the latter variants,
the stop collar in the carburetor cover prevents the
slide valve from entirely opening so that not the
full capacity of the A/F mixture can enter the
carburetor.
Assembly
45 km/h
No stop collar
Put the needle jet together with the retaining clip in
the slide valve. Put the plastic stopper and the
spring over the control cable and hook the cable in
the slide valve.
Align the guide slot of the slide valve with the
guide in the carburetor body (comp. photo).
Place the cover onto the carburetor and fasten the
screws. Ensure a sufficient free play of the throttle
control cable by adjusting the setting screw.
Pay attention not to attach the thread
crookedly!
FACTORY DEFAULT
During the reassembly the carburetor shall be set to
its factory default (1800 100 min
-1 100 min
). Carefully
turn the mixture control screw clockwise to the
stop and then release it by 1.5 turns.
Turn the throttle grip and check whether the
correct idle speed is adjusted by itself.
If the engine idle speed cannot be stabilized, then
the position of the mixture control screw shall be
changed in order to modify the composition of the
A/F mixture.
Mixture control screw
Guide slot
Idling adjusting screw