Husqvarna IZ 21 manual Replacing the Air Filter, Standard air filter

MAINTENANCE

Replacing the Air Filter

Standard air filter

If the engine seems weak or runs unevenly, the air filter may be clogged. If run with a dirty air filter, the spark plugs can become fouled, distupting operation.

For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval).

Cleaning/replacing the air filter is carried out as follows:

WARNING!

The engine and the exhaust system become very hot during operation.

Risk for burns if touched.

Allow engine and exhaust sytem to cool at least two (2) minutes.

1.Remove the plastic fastener on the top of the air filter cowling and remove the air filter cowling.

2.Remove the foam rubber pre-filter and clean using a mild detergent.

Squeeze it dry with a clean cloth.

3.Remove the wing nuts for the air filter and remove the paper filter. Tap the paper filter against a fixed surface to remove dust. If the paper filter is still dirty, it must be replaced.

IMPORTANT INFORMATION

Do not used compressed air to clean the air filter.

Do not wash the paper filter. Do not oil the paper filter.

4.Refit the air filter as follows:

Check that the seal on the bottom of the paper filter is whole.

Mount the paper filter in the air filter housing and tighten the wing nuts.

5.Refit the pre-filter on the paper filter.

6.Replace the cowling over the air filter housing. Do not over tighten the plastic fastener.

8011-768

Remove the air filter cowling

8011-557

Remove the pre-filter

8011-558

Remove the paper filter

8009-181

Remove dust

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