O.S. Engines 21VZ-R - Manual (Page 10)

LONG SOCKET WRENCH
Recommended for easy removal
and replacement of the angled
and recessed glowplug, the
O.S.Long Socket Wrench
incorporates a special grip.
SILICONE FUEL LINE
Heatproof silicone tubing of
approx. 5mm o.d. and 2mm i.d.
is required for the connection
between the fuel tank and
engine.
CARBURETOR CONTROLS
The Needle-Valve:
•
The Mixture Control Screw:
•
The Throttle Stop Screw:
For setting the minimum idling speed:
•
Four adjustable controls are provided on this
carburettor.
For adjusting the mixture strength when the throttle
is fully open.
For adjusting the mixture strength at part-throttle
and idling speeds, to obtain steady idling and
smooth acceleration to mid speeds.
Needle Valve
Mixture Control Valve
Assembly Screw
Throttle Stop Screw
NOTE: Readjustment may be necessary,
occasionally to allow for changes in fuel formula
gear ratio or clutch engagement point.
The Metering Needle:
•
Metering Needle
For changing the feeling at mid speads and
acceleration. (Do not rotate the screw more chan
one turn.)
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