O.S. Engines 21RZ-V01B (P) - Manual (Page 14)

BATTERY LEADS
LONG SOCKET WRENCH
These are used to conduct current from the battery to
the glowplug. For convenience, special leads with a
suitable clip to fit the glowplug terminal, are
commercially available.
Recommended for easy removal and replacement of
the deeply recessed glowplug, the O.S. Long Socket
Wrench incorporates a special grip.
FUEL BOTTLE OR PUMP
SILICONE TUBING
ELECTRIC STARTER AND STARTER BATTERY
CARBURETOR CONTROLS
The Needle-Valve: ¡
The Mixture Control Screw: ¡
The Throttle Stop Screw:
For setting the minimum idling speed:
¡
For filling the fuel tank, a simple, polyethylene
"squeeze" bottle, with a suitable spout, is required.
Alternatively, one of the purpose-made manual or
electric fuel pumps may be used to transfer fuel
directly from your fuel container to the fuel tank.
This is required for the fuel line between the fuel tank
and engine.
Use an electric starter with 12-volt battery for
starting the engine.
Three 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
Ball Link
Slide Valve
Guide Screw
NOTE: Readjustment may be necessary,
occasionally to allow for changes in fuel formula
gear ratio or clutch engagement point.
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