O.S. Engines FS-91 II FI - Manual (Page 16)

16
A
B
0
ENGINE STARTING AND AIR-FUEL MIXTURE ADJUSTMENT
(1) Switch on the transmitter then the receiver.
Make sure the Limit is set. Make sure that LED flashes when the throttle stick is at the full
slowposition as well as at the tull high position. Flashing color is the color at the injection trim
set position. (2)
Confirm that the rotor mark on the air valve is located at the center mark on the air valve body
when the throttle stick on the transmitter is in the center position.
(When the settings of (2) and (3) are unable to be made, repeat linkage of the throttle servo
and air valve as well as the Limit settings.) (3)
Make sure that injection trim functions correctly when the
throttle stick is at full high position as well as at the center
position. First make sure that LED lights red when the dial is
turned right and LED lights green when the dial is turned loft,
with the throttle stick at full high position. (In case of other
makes, if the direction is reverse, it is necessary to reverse
the setting. Even if the direction is reverse, there is no
functional problem.) Then set the dial at the position where
the Buzzer sounds two successive notes (PiPi) turning the
dial right and left. Then, more the throttle stick to the full slow
position and set the dial at 0 position. Now the 0 setting at
full high position is completed. Then, carry out the same
procedure with the throttle stick at the center position. (4)
This adjustment function employs the incremental system. Therefore, it is normal if the
injection trim dial 0 position changes during operation. Repeat the above procedures if 0
setting is reguired. LED color does not show engine adjustment condition.
NOTE:
Be sure to switch on the transmitter firt. If the receiver would be switched on first, there
would be a danger that the setting of other transmitter with the same band would be taken
into your transmitter which might result in change of injection trim on EC-2 without your
intention. This happens when the receiver is switched on to check if the same band
transmission is emitted. When the engine running gets suddenly out of order or you feel
unsure, repeat the Lmt Setting in the LINKAGE AND INITIAL SETTINGS section and (4) in
the ENGINE STARTING AND AIR-FUEL MIXTURE ADJUSTMENT. Swith off the receiver firast
for the above reason.
Note:
This injection system was developed for use in model airplanes. All adjustments are not
performed automatically. Always make sure to check the contents of adjustments prior to
use.