2noo
G
A
Fuelsystem
When properly adjusted the lever of the needle
valveshall be on a level with the carburetor
housingsurrounding it. Adjust if necessary(see
fig. 4:14).
Fig 4:14
If the lever is located too high, the carburetor will
be very sensitiveasregardsthe adjustment of the
adjusting needles.
A too low lever inducesbad acceleration qualities.
Check that the levercan move freely.
Make a pressuretest of the carburetor. Proceedas
mentioned above.
Then mount gasket,metering diaphragm and cover.
NOTE!
Care should be taken to ensure that the centre pin of the
diaphragm enters the fork in the lever!
Install the adjusting needlesand screwthem out
to the following basicposition:
H = 1.0 turn open
L = 1.2 turn open
C. Speed governor
Locate the sealingwasherin the carburetor hous-
ingand fasten the speedgovernor, Pushthe choke
shaft into its position and fit the choke flap and
its locking screw.
Adjustmentofcartwrettor
A. Basic setting
Before adjusting the carburetor, proceedas
follows:
Clean the air filter or, if necessary, replace it.
Check the spark plug and its electrodes.
Check that the fuel filter is not clogged.
Fig 4:15
Examine the fuel filter asfollows:
Loosenthe fuel hosefrom the carburetor and lay
the chain saw on the clutch side. Open the tank
cap. If there isenough fuel in the tank, someof it
ought to run out of the hose(seefig. 4:15).
Fig 4:16
After the abovementioned checks,make a basic
adjustment of the carburetor needles,i.e. H = 1.0
turn open and L = 1.2 turn open.
Start the chain sawand warm it up by applying
full throttle and letting it cut into a log.
A constant speed,without fourstroking, for 10-20
sec.when cutting into a log indicatesnot only a
good high speedfunction of the carburetor but
alsoa good condition overall.
4:4
For Husqvarna Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com
To Next Page
Loading...
