Poulan Chainsaw - Manual (Page 13)

Read
SAFETY CENTER SPREAD
FREQUENTLY
7, When the idle speed has been adjusted, squeeze the
throttle trigger. If the saw accelerates without
hesitating, make a test cut. Be careful to keep chips
and dirt out of the carburetor. If the saw seems to
smoke or have low power in the cut it is set too rich.
Turn the high speed mixture screw 1/16th of a turn
clockwise and repeat the test cut. Repeat this adjust­
ment until the saw runs smoothly.
10, Be sure the idle speed screw is set properly and the
chain is not turning. Before replacing the carburetor
cover, clean the mating surfaces of the housing and
cover. Move the choke knob all the way to the choke
position and move the choke shutter to the choke
position and replace cover. (Refer to Fig, 1, Page 12).
CAUTION: NEVER SET THE HIGH SPEED MIX­
TURE LESS THAN 7/8THS TURN OPEN. A LEAN
SETTING WILL RUIN YOUR ENGINE.
8, If the engine does not have power in the test cut, and
quits, it is set too lean. Turn the high speed mixture
screw 1/16th turn counterclockwise. Test cut again.
Repeat adjustment until saw runs smoothly.
9. When you have completed these adjusments, recheck
for proper idle mixture screw setting per instructions in
views No. 5, 6, and 7. Check for acceleration. If there
is a slight hesitation, turn the low speed mixture screw
1/16 turn counterclockwise at a time until you have
smooth acceleration.
CLEANING AIR FILTER
The air filter, located in front of the carburetor, captures
dirt and dust and prevents it from entering the engine. It
is oil coated. The filter should be cleaned after every 10
tanks of fuel or every 5 hours of operation.
Wash the air filter with soap and water. Do not use
gasoline or other flammable liquid. Squeeze dry and add a
small amount of oil to coat, but not to soak the filter.
Squeeze out any excess oil. Replace the filter in housing,
tuck in edges, and smooth it flush with the housing.
Replace carburetor cover.
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