O.S. Engines 15CV-X - Manual (Page 19)

BALL LINK AND SLIDE VALVE EXTENSION
It is seldom necessary to separate the slide-valve
extension from the slide-valve itself. For cleaning,
withdraw this complete sub-assembly from the
carburetor body after removing the slide-valve guide
screw. Then wash with methanol or glow-fuel.
(Note: take care not to lose the guide screw;it is a
special one.)
When it is necessary to adjust the ball-link position,
loosen the ball-link retaining screw with a 2.5mm
hexagon key, re-align the ball-link and re-tughten the
screw firmly.
(In case of the 10C caburetor)
REALIGNMENT OF MIXTURE CONTROL VALVE
■
In the course of making carburetor adjustments, it is
just possible that the Mixture Control Valve may be
inadvertently screwed in or out too far and thereby
moved beyond its effective adjustment range. Its
basic position can be found by first rotating the
Mixture Control Valve until its slotted head is flush
with the carburetor body. The valve is then screwed in
exactly 2.5 turn to re-establish its neutral position.
Mixture Control Valve
Carburettor Body
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in exactly
2.5 turn.
This is the standard position.
■ In case of the 10C caburetor
In case of the 10E-R caburetor
Carburettor Body
Mixture Control Valve
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in
exactly 0.5 turn.
This is the standard position.
Throttle Lever
18