O.S. engine MAX 140RX FI, Owner'S Instruction Manual

 (4) Adjustment of Amount of Throttle Servo and Air Valve Angle

Move the throttle stick on the transmitter to slow and then full high. If there is excessive or       
insufficient opening of the air valve, adjust the opening with the throttle angle adjustment 
function (ATV).  Confirm that the servo is not subjected to an excessive load due to tugging or 
pulling. An excessive load on the servo can cause the battery to discharge and air valve to 
lock.  

 (5) Engine Cutoff Adjustment

When using a transmitter equipped with an engine cutoff function, switch the transmitter to the 
engine cutoff position and adjust the air valve so that it is fully closed at that time.  Confirm that 
the servo is not subjected to an excessive load due to pulling.

(6) Confirmation of Throttle and Air Valve Operation

When the stick is in the slow position: The rotor mark should be located at the slow mark of the 
body. When the stick is in the center position: The rotor mark should be located at the center 
position of the body. When the stick is in the full high position: The air valve should be fully 
open. Recheck these positions.

(7) Lmt Setting

The movement of engine control has considerable significance with respect to the injection 
operation.  Since there may be errors in operation depending on the direction and movement 
always make sure to perform the Lmt setting. 

Turn on the power switch and press the   function key on the EC-1 to display the Lmt Low 
display.

First move the throttle stick on the transmitter to the full slow position and then press either the 
data (+) key or data (-) key once.  The display changes from Lmt    Low to Lmt High.  

Next, move the throttle stick to the full high position and press either the data (+) key or data (-) 
key once.  Lmt    Low is displayed.  Repeatedly move the throttle stick between the slow and fully 
high positions and confirm the display of the    mark.  This completes the setting procedure.  The 
settings are stored in the memory of the EC-1.  Memory contents remain intact even if the power 
is turned off.  
 (Repeat steps (1) through (7) when the throttle linkage has been changed.)

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Engine Starting and Air-Fuel Mixture Adjustment

 (1) Turn on the power of the transmitter and then turn on the power of the receiver. 

Press the function key on the EC-1 and display the limits.  Confirm that Lmt    Low is displayed                  
when the throttle stick is in the full slow position, and that Lmt    Low is displayed when in the 
full high 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 initial settings.)

 (3) 

Check that the injection trim is at +0%. After confirming that the dial of the injection trim 
adjustment function (spare channel dial) is at the 0 position (center position), display TMD ATL 
of the trim mode of the EC-1, and press either the data (+) key or data (-) key to switch to TMD 
Fine.

 (4) 

Note:
This injection system was developed for use in model airplanes. All adjustments are not  
performed automatically.  Always make sure to check all adjustments prior to use.

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