Husqvarna 322, Workshop Manual

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3

531 00 48-63

502 71 14-01

531 00 48-63

502 71 14-01

Fuel system

After replacing the H and L needles

1. Remove the plastic sleeves from both needles and screw

out the needles.

2. Carefully screw the new needles in until they bottom.

Screw out the L needle 1 turn.

Screw out the H needle 2 1/2 turns.

3. Press the new plastic sleeves on the needles until the first

stop. The sleeves can still be turned without the needles
turning.

4. Turn the plastic sleeve on the L needle as far as possible

clockwise (leanest fuel mixture).

5. Start the engine and let it idle.

6. Use the screwdriver 531 00 48-63 to adjust the L needle.

The blade is 2 mm wide and goes through the plastic
sleeve and only adjusts the needle.

Adjust the L needle so that the highest idling speed is
obtained.

Use the tachometer 502 71 14-01 to check the speed.

7. Check that the plastic sleeve on the L needle is still turned

as far as possible clockwise (leanest fuel mixture).

Adjust the L needle so that the highest idling speed is
obtained.

Use the tachometer 502 71 14-01 to check the speed.

8. Check that the plastic sleeve on the L needle is still turned

as far as possible clockwise (leanest fuel mixture).

9. Press the plastic sleeve on the L needle using a punch

(Ø 5 mm).

The basic setting of the carburettor is now complete. Further
fine adjustment, within the limits that the plastic sleeves on the
needles permit, can be necessary.

The basic setting of the carburettor is now complete. Further
fine adjustment, within the limits that the plastic sleeves on the
needles permit, can be necessary.

After replacing only the L needle

1. Turn the H needle as far as possible clockwise (leanest fuel

mixture).

2. Remove the plastic sleeve on the L needle and unscrew the

needle.

3. Carefully screw in the new L needle to the bottom and then

loosen it 1 turn.

4. Press a new plastic sleeve on the L needle down to the first

stop. The sleeve can now be turned without turning the
needle.

5. Turn the plastic sleeve as far as possible clockwise (leanest

fuel mixture).

6. Start the engine and let it idle.

7. Use the screwdriver 531 00 48-63 to adjust the L needle.

The blade is 2 mm wide and goes through the plastic
sleeve and only adjusts the needle.

8. Press the plastic sleeve on the L needle using a punch

(Ø 5 mm).

Now turn the L needle as far as possible anticlockwise
(richest fuel mixture).

9. Turn the plastic sleeve on the H needle as far as possible

anticlockwise (richest fuel mixture).

10. Fit four trimmer cords Ø 3.3 mm on a Trimmy Fix M10,

531 00 38-69 for models 322L, 322R, 325L, 325L-X, 325R-X.

Maybe the hole needs to be enlarged a little to make fitting
the trimmer cords easier.

11. Cut the trimmer cord to the right length (measure the length

to the edge of the Trimmy Fix).

Model 322L/R, 325L/L-X/R-X: 142 mm

Fit the Trimmy Fix on the machine.
Model 322C should be used with Trimmy Hit VI and its
standard cord (Ø 2.0 mm). Cut the cord ends so that they
are 146 mm long.

12. Start the engine. Adjust the idling speed T screw if neces-

sary.

13. Use screwdriver 531 00 48-63 to adjust the H needle. The

blade is 2 mm wide and goes through the plastic sleeve
and only adjusts the needle.

Adjust the H needle so that the max. speed 8400 

±

 200 r/min

is set.

Use the tachometer 502 71 14-01 to check the speed.

(Does not apply to model 225H60/H75).

14. Run the engine warm for 2–3 minutes.

15. Check that the max speed is still 8400 

±

 200 r/min. Adjust

the H needle if necessary.

16. Check that the plastic sleeve on the H needle is still turned

anticlockwise as far as possible (richest fuel mixture).

17. Press in the plastic sleeve using a punch (Ø 5 mm).

3 Eng, 11-18

98-12-14, 17.07

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