Engine Parts
Identification
It is important to be able to identify the
parts of your Saito
™
engine. Attached
you will find an exploded view of
a Saito 4-stroke engine, as well as
charts that include part numbers and
descriptions. This will assist you in
easily and rapidly identifying the
respective parts of your Saito engine.
Support Equipment
The following items, which are not
included with your Saito engine, are
necessary in order to operate the
model engine:
1. Fuel.
For maximum protection
and longevity of their engines, Saito
recommends a fuel containing 20%
oil and 10–15% nitro methane. If this
blend is
not
readily available, the
next best selection is a high quality
2-cycle glow fuel, such as Hangar 9
®
Aero-Blend, Omega, Cool Power,
K&B, Power Master, etc. Use of fuels
composed entirely of castor oil is not
recommended. A mix of synthetic-
castor oil is acceptable and can be
found in the various fuels described
above.
2. Propeller.
Refer to the “Propeller
Selection” chart, located on page 14, to
determine the best initial propeller for
your particular application. Propellers
should be balanced prior to use.
3. Glow Plug Battery.
Your glow plug
may be properly heated by several
different sources. The Hangar 9 Power
Panel (HAN106), when accompanied
by a 12-volt Sealed Lead Acid
Battery (HAN102) and a Glow Plug
Locking Socket (HAN120) is an ideal
source of heat for your glow plug. A
conventional 1.5-volt heavy-duty dry
cell battery with a Glow Plug Locking
Socket (HAN120) or alligator clips
may also be used. Additionally, there
are several very good glow-starters
(nickel cadmium-powered glow plug
igniters)(HAN7101) that work well.
4. Glow Plug Wrench.
Used to
remove and tighten glow plugs. The
Hangar 9 Long Reach Plug Wrench
(HAN2510) is an excellent wrench
to utilize, as a longer shaft may be
necessary to access the glow plug.
This depends mostly upon engine
installation.
5. Manual or Electric Starter.
For manual starts, a “Start Stick
(HAN113)” is highly recommended.
Never use your fingers to start any
model engine. To do so invites
injury. There are a variety of electric
starters on the market. The Hangar
9
®
PowerPro Heavy-Duty 12V starter
(HAN162) will work perfectly on all
Saito engines.
6. Tachometer.
The use of a
tachometer for setting the high-
speed needle valve prior to flight is
encouraged. It will also be helpful
when setting the idle adjustment of
the carburetor(s). The Hangar 9 Micro
Digital Tachometer (HAN156) is a
good choice.
S U P P O R T E Q U I P M E N T
3
Do not use hands, fingers, or any other
part of the body to stop the propeller.
Do not throw any object into a
propeller to stop it.
It is highly recommended that:
• Safety glasses or goggles be
used when starting and running
your engine.
• You do not run the engine in the
vicinity of loose gravel or sand.
The propeller may throw such
materials into your face and eyes.
The engine may also ingest these
harmful materials.
• Loose clothing should be avoided
when operating your model engine.
Loose clothing may become
entangled in the propeller, creating
the possibility of bodily harm. Also,
all loose objects (screwdrivers,
pencils, nickel cadmium starters, etc.)
should be removed from your
pockets so that they do not fall
into the propeller.
• Glow plug clips and cords are kept
away from the propeller.
• Your glow fuel is kept in a safe place
well away from sparks, heat, or
anything that can ignite the fuel.
Beware:
• Model engines get very hot while
running. Do not attempt to handle
them until they have cooled.
• Always run your model engines in
a well-ventilated area. Similar to
automotive engines, model engines
produce possible harmful carbon
monoxide fumes.
• Remember that model engines
produce a substantial amount of
power, more than enough to seriously
injure people and/or do considerable
damage to property. Always use
common sense, skill and constant
observation of safety precautions.
Disassembly
Do
not
needlessly disassemble
your Saito
™
engine. Only qualified
individuals should perform engine
repairs. Damage due to improper
disassembly will not be covered under
warranty. If it becomes necessary
to repair the engine, such as after a
crash, you can send your engine to the
authorized service center at:
Horizon Hobby, Inc.
Attention: Saito Service
4105 Fieldstone Road
Champaign, IL 61822
Phone: (217) 355-9511
2
S A F E T Y I N S T R U C T I O N S
