Instruction manual

8. Disconnect the glow plugs from the engine. Close
the high-speed needle valve slowly until the engine
rpm's increase. Adjust the high-speed needle valve
slowly, in small increments. The use of a tachometer
is highly recommended to prevent the over-revving
of the engine during the initial start-up and break-in
process.
Caution: Do not exceed 4,000 rpm for the first
10 minutes of operation. This allows the parts
to mate properly under good lubrication (rich).
During this period of rich running, it may be
necessary to keep the glow drivers attached to
the glow plugs to keep them lit. Saito considers
40 minutes of total run time sufficient for normal
break-in prior to the first flight.
Hand Start
The FA-200Ti/100Ti may be safely hand started
(if using a light wood prop, electric start is
recommended). For safety purposes, use a "chicken
stick". At no time should you attempt to start the
engine using your fingers.
1. Position the propeller so that when it is turned
counter-clockwise and compression is first felt,
it is in the horizontal position.
2. Move the throttle stick on the transmitter so the
throttle arm of the carburetor is in the
1
/4-
1
/2
open position.
3. Turn the high-speed needle valve to 4-5 turns
out from fully closed.
4. Prime the engine by rotating the propeller in a
counter-clockwise direction 5-6 times while
plugging the ends of the mufflers with your
fingers to draw fuel into the carburetor.
5. Slowly turn the propeller counter-clockwise
until compression is felt.
6. Recheck the position of the throttle arm
(
1
/4-
1
/2 open).
7. Connect the glow driver(s).
8. Using the "chicken stick", quickly and firmly
turn the propeller clockwise from the position in
step 5 and from the center of the right blade.
9. The propeller should "bounce" quickly in the
counter-clockwise direction to a point where
ignition of the fuel charge takes place.
10. If the engine stops, check to make sure the fuel
is reaching the carburetor, then repeat steps 4-8.
Correct priming is a key factor in successful
hand starts.
11. After the engine starts, allow it to run a few
moments at the starting high speed needle valve
setting, then slowly move the throttle (of
transmitter) to the fully open position. If the
engine slows down because it is running rich,
close the high-speed needle valve (leaning it out)
slightly until the engine runs smoothly, but with
a rich setting.
12. Disconnect the glow plugs from the engine.
Close the high-speed needle valve slowly until
the engine rpm's increase. Remember to adjust
the high-speed needle valve slowly, in small
increments. Abrupt changes to the high-speed
needle valve may cause the engine to stop. The
use of a tachometer is highly recommended to
prevent the over-revving of the engine during
the initial start-up and break-in process.
Break In of Engine
The first run on any engine, whether 2-stroke or
4-stroke, is critical to the future of the engine itself.
During this time, metal mating parts (piston and
cylinder, ball bearings, etc.) wear in. Care must be taken
that the engine is clean and free of any dust or grit that
may have accumulated while building the model.
There are two acceptable methods for breaking-in
a new engine: test stand mounted and run or mounting
the engine on an aircraft and running-in the engine.
Either method is acceptable; however, mounting the
engine on a test stand allows the engine to be observed
throughout its operation, as well as elevating it above
the ground and away from harmful dust and dirt.
Note: Because your engine may have been sitting
for an extended period of time prior to running it, a
few drops of light oil applied through the crankcase
breather nipple and down the push-rod tubes will
ensure proper lubrication for the first run.
1. Open the high-speed needle valve approximately
5 truns.
2. Set the throttle arm open
1
/8" (approximately)
with the throttle stick.
3. Start the engine and adjust engine speed to
4,500 rpm using the high-speed needle valve to
adjust speed. Carefully watch the tachometer and
look for a "rich" oily discharge.
4. Run for about 5 seconds at maximum rpm
(4,500 rpm), then open the high-speed needle valve
about 3/4 turn for about 15-20 seconds to produce a
rich mixture for cooler, slower running. Keep the
throttle open, using only the high-speed needle
valve to change rpms.
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