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O.S. engine MAX-21XM User Manual

O.S. engine MAX-21XM
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STARTING
Set the needle-valve. Turn the needle clockwise slowly,
without forcing, until it stops.
Then, reopen the needle-valve 2-1/2turns counterclock-
wise.
Open the throttle very slightly:
Heat the glowplug by connecting the battery leads.
Make sure that the direction of
rotation of the electric starter is
correct, namely, clockwise.
If necessary, reverse leads on
battery to provide clockwise rotation.
Bring the starter into contact with the
flywheel and depress the starter
switch for one or two seconds.
Repeat if necessary. When the engine fires, withdraw the
starter immediately.
Do not apply the starter to a flooded engine and never
place your finger over the carburettor intake when using
the starter. This may cause an hydraulic lock and bend
the connecting-rod.
Adjusting the needle-valve: adjust the needle-valve to its
optimum setting only while actually running your boat on the
water.
To stop the engine, fully close the throttle to cut off air
supply.
Warning:
Turn needle-valve clockwise to close
(for leaner mixture)
Turn needle-valve counterclockwise to
open (for richer mixture)
This is to avoid unnecessarily
high revolutions when the engine
starts.
Nozzle
Throttle Rotor Hole
Mixture Control Valve
(Mixture Control Screw)
Mark
Close
Open
Clockwise-
rotation
10

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O.S. engine MAX-21XM Specifications

General IconGeneral
BrandO.S. engine
ModelMAX-21XM
CategoryEngine
LanguageEnglish

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