Husqvarna HU800BBC User Manual

Maintenance, repair, or replacement of the emission control 
devices and systems, which are being done at the custom-
ers expense, may be performed by any non-road engine 
repair establishment or individual. Warranty repairs must 
be performed by an authorized engine manufacturer’s 
service outlet.

Use only high quality detergent oil rated with API service 
classifi cation SG–SL.  Select the oil's SAE viscosity grade 
according to your expected operating temperature.

NOTE:  Multi-viscosity oils (5W30, 10W30 etc.) improve 
starting in cold weather, and you should check your engine 
oil level frequently to avoid possible engine damage from 
running low on oil.

Change the oil after every 25 hours of operation or at least 
once a year if the lawn mower is not used for 25 hours in 
one year.

Check the crankcase oil level before starting the engine 
and after each fi ve (5) hours of continuous use. Tighten oil 
plug securely each time you check the oil level.

NOTE:  Before tipping lawn mower to drain oil, empty fuel 
tank by running engine until fuel tank is empty.

1.  Disconnect spark plug wire from spark plug and place 

wire where it cannot come in contact with plug.

2.  Remove oil fi ll cap/dipstick; lay aside on a clean sur-

face.

3.  Tip lawn mower on its side as shown and drain oil into 

a suitable container. Rock lawn mower back and forth 
to remove any oil trapped inside of engine.

4.  Wipe off any spilled oil from lawn mower or side of 

engine.

5.  Fill engine with oil.  Slowly pour oil down the oil fi ll spout 

into the engine.

6.  Wait one minute to allow oil to settle.  Use guage on oil 

fi ll cap/dipstick for checking level.  Insert dipstick into 
the tube and rest the oil fi ll cap on the tube.  DO NOT 
thread the cap into the tube when taking reading.

7.  Continue adding small amounts of oil and rechecking 

the dipstick until it reads full.  DO NOT overfi ll, or engine 
will smoke on startup.

8.  Always be sure to retighten oil fi ll cap/dipstick before 

starting engine.

9.  Reconnect spark plug wire to spark plug.

Your engine will not run properly and may be damaged by 
using a dirty air fi lter. Replace the air fi lter every 100 hours of 
operation or every season, whichever occurs fi rst.  Service 
air cleaner more often under dusty conditions.

TO CLEAN AIR FILTER
1. Remove 

cover.

2.  Carefully remove cartridge.

3.  Clean by gently tapping on a fl at surface. If very dirty, 

replace cartridge.

4.  Install cartridge, then replace cover.