APRILIA ATLANTIC 125 Workshop Manual page 89

ATLANTIC 125 - 200
•
Check that the pick-up pump control rocker arm is not
excessively worn.
•
Check that the rocker arm set screw juts of:
- 125 cc engine: 3.7 mm
- 200 cc engine: 3.2 mm.
•
Check the rocker arm return spring for yielding.
•
Pre-assemble spring and rocker arm.
•
Keep the throttle open and fit the rocker arm on the
carburetor.
•
Tighten rocker arm screw.
•
Make sure that the mechanism works properly.
CHECKING THE VACUUM VALVE AND THE TAPERED
METERING ROD
•
Undo the bayonet-coupling by 1/8
remove it. Remove spring and vacuum valve metering
rod.
•
Check the metering rod for wear and that the retainer
is positioned inside the third notch.
•
Check the outer diameter vacuum valve for scoring.
•
Check that the two vacuum feeding holes are not
obstructed.
NOTE The 2 holes have different diameters.
th
of a turn and
FUEL SYSTEM
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