Throttle Handle - Husqvarna 243RJ Workshop Manual

3
Adjust the carburettor jet screws as follows after making the
basic adjustment:
1. Run the engine warm for approx. 3.5 minutes. Adjust the idle
speed to 2,800 rpm where necessary using a T screw.
2. Turn the L needle anticlockwise to obtain a slightly "richer"
fuel-air mix, stable idling and good acceleration.
3. Then turn the L needle clockwise to obtain maximum idle
speed.
4. Adjust the idle speed to 3,600 rpm using a T screw.
5. Then adjust the engine speed to 2,800 rpm by turning the L
needle anticlockwise.
6. Apply full throttle and notice whether the engine responds
quickly by accelerating.
The speed should be a minimum of 11,500 rpm. If the speed
is lower than this, adjust using the H needle.
26
Fuel system
7. After adjusting the settings, the locking plugs should be
8. Start the engine and check it responds quickly at full throt-

Throttle handle

Loosen screw (A).
NOTE!
Speed in excess of 12,000 rpm should be restricted
by the ignition system and not recorded by the
revolution counter.
fi tted so the jet needles cannot be turned anti-clockwise.
tle, the idle speed is 2,800 rpm and the fast idle speed is
12,000 rpm. max.
NOTE!
If the cutting equipment rotates while idling the
T-screw should be turned anticlockwise until it
stops rotating.
Throttle handle
1. Loosen screw (A) to facilitate contin-
ued dismantling.
2. Remove the 4 screws holding both
handle halves together.
502 71 27-02
3. Lift off the left (upper) handle half.
4. Push the front handle mounting (B)
forward so the right (lower) handle half
can also be lifted off the shaft.
5. Check the 4 vibration dampers (C) are
undamaged. Replace them if neces-
sary.