Zenoah G260PU Manuel de service télécharger pdf (Page 7)

The carburetor is provided with 3 adjust screws which are set to the best

(approximately) positions by our company, but they may need a little adjustment

depending on the temperature, atmospheric pressure (altitude), etc. of the area where

the engine is used. Start the engine without making any adjustments. Make

readjustments only when the engine shows any mal-running.

Standard opening of each needle as follows;

Idle Screw:

Turning this screw clockwise increases the idling R.P.M. Turning it

counterclockwise decreases the idling R.P.M

Low Speed needle:

This is the fuel adjust screw (not the air screw). Turning this needle clockwise

makes the mixture gas leaner and turning it counterclockwise makes it richer.

Set this needle at a position which is 1/4 open from best mixture (maximum R.P.M.)

position.

High Speed needle:

Turning this needle clockwise makes the mixture gas leaner and turning it

counterclockwise richer. Set this needle at a position which is 1/8~1/4 open from the

maximum R.P.M. position while the airplane is on ground.

1. Do not tighten the High and Low Speed needles too firmly.

2. When the unit has just started and the engine is not warm enough, there may

be insufficient acceleration and the engine may be stopped. Be sure to

perform idling before operation.

CAUTION

Low Speed needleHigh Speed needle

Idle Screw

8. Carburetor Adjustment

/8 ±

/4 1

/8 ±

Fig.8

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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Zenoah G260PU Manuel de service Page 7