O.S. engine MAX-12TG-P Instruction Manual page 13

Now connect glowplug battery lead to heat
the plug filament and start the engine.
In case of the 12TG-X and 12TG-PX
Be sure to install an air cleaner when starting.
Pull the starter handle briskly straight out
several times to start the engine.
Do not extend the starter cord more than 40cm
(16").
Starter Handle
Glowplug
Igniter
air cleaner
When the engine starts, first allow it to operate in
short runs at the very rich starting settings, with
the glowplug battery still connected and the driving
wheels clear of the ground. The rich mixture will,
under these conditions,
lubrication and cooling, indicated by profuse
smoke from the exhaust.
Remember!
It is vitally important to set the
throttle at the correct position
before attempting to start the
engine. If the engine is allowed to
run with the throttle too far open
under "no load" conditions, it will
rapidly overheat and may be
seriously damaged.
In case of the 12TG and 12TG-P
Start the engine using a starter box, making sure
the engine rotation direction is correct (counter-
clockwise seen from the crankshaft end).
When the engines does not start
or stops right after started Try the followings.
Set the needle-valve approx. 2 turns open from the
fully closed position. (Do not close further.)
Set the throttle opening a little wider that the
factory set by adjusting the throttle stop screw.
16" 40cm MAX!
24
Next adjust the idle speed (low engine RPM)
The idle speed should be set so that the car does
not move with the engine running and throttle stick
in the low speed position.
provide adequate
RPM Low
If the RPM is lowered too much, the engine
stops. Set the idling RPM a little higher when the
engine is new.
25
approx 1mm
Disconnect the glowplug battery If the car starts
moving (or tires rotate), adjust the throttle stop
screw so that tires may not rotate with steady
idling.
Throttle Stop Screw
Throttle Stop Screw
RPM High
approx
1.5mm