O.S. engine 49-PI II Instruction Manual page 11

THROTTLE LINKAGE
Before connecting the throttle to its servo,
make sure that the throttle arm and linkage
safely clear any adjacent part of the airframe
structure, etc., as the throttle is opened and
closed. Connect the linkage so that the throttle
is fully closed when the transmitter throttle
stick and its trim lever are at their lowest
settings and fully open when the throttle stick
is in its fully-open position. Carefully align the
appropriate holes in the throttle arm and servo
horn so that they move symmetrically and
smoothly through their full travel.
STARTING THE ENGINE & RUNNING-IN ('Breaking-in')
Be sure to use an electric starter to
start the engine.
Never fail to check the tightness of
! screws and nuts, especially engine
mounting and moving parts (e.g.
throttle lever).
Starting procedure is as follows:
1.
Fill the fuel tank with fuel. When filled,
prevent fuel flowing into the carburetor with
a commercially available fuel stopper, etc.
Release the stopper before starting the
engine.
2. Make sure that plug element glows red, and
install the plug in the rotor housing.
NEEDLE-VALVE EXTENSION
The needle-valve supplied with this engine is
designed to incorporate an extension so that,
when the engine is enclosed within the
fuselage, the needle-valve may be adjusted
from the outside. For this purpose, Needle
Valve Extension Cable Set is supplied with the
engine. If a longer extension is reguired, cut a
commercially available rod to the required
length, bend one end to an L shape, insert it
into needle's center hole and secure it by
tightening the set-screw in the needle-valve
knob with 1.5mm Allen key.
1.5mm Allen key.
Needle Valve Extension Cable Set
20
Element glows when energized.
Replace the plug when the
element does not glow or is
burnt out.
Glow Plug Igniter
WARNING
When checking the plug element hold the
plug with tools, such as pliers, etc.
Do not hold near your face or the fuel
remaining in the filament may burn you.
21
Set Screw
Pliers