C
ARBURETOR
M
AINTENANCE
Should you experience difficulty
with the carburetor of your
engine:
1. Remove the high speed needle
(85) and flush out the spray bar
with clean fuel. Replace the high
speed needle and follow the
instructions in the Low Speed
Carburetor Adjustment section.
2. Always use a high-quality 4-
cycle glow plug. The Hangar
9/McCoy MC-4C is highly rec-
ommended.
T
IPS FOR
E
XTENDED
E
NGINE
L
IFE
To add longer life to your Saito
engine, we recommend the fol-
lowing:
1. Use a high quality airplane fuel
like Omega or Powermaster mix
at 10-15%. The use of all castor
oil for lubraication is not recom-
mended. A synthetic castor mix is
the preferred lubrication.
2. Use the recommended glow
plugs.
3. Use the proper propeller size
and balance the propeller prior to
use.
4. Use a tachometer for precise
engine adjustments.
5. Use an ”after-run” oil when
you’re finished flying for the day.
6. For long-term storage, make
sure there is no fuel left in the
tank and the engine. Remove the
glow plug(s) and apply several
drops of high-quality oil (e.g.,
Marvel Air Tool Oil) to the top of
the engine, into the glow plug
hole, down the pushrod tubes, and
through the crankcase pressure
vent (breather nipple). Rotate the
crankshaft several times. Store the
engine in the box or on the air-
plane with the nose down in order
to keep oil in the bearings.
T
ROUBLESHOOTING
Generally speaking, there are very
few things that will keep today’s
modern glow engines from start-
ing. To that end, make sure you’re
using high quality ”fresh” fuel,
there are good glow plugs
installed, and the starting battery
is charged and in good condition.
Should the engine fail to start
after these items are verified, refer
to the following chart.
13
C
ARBURETOR
M
AINTENANCE
Saito manual doc 11/12/01 2:11 PM Page 13
