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CLEANING THE SPARK
ARRESTING SCREEN
Cleaning is required every 25 hours of
operation or annuaIly, whichever
comes first.
_i utlet
Guide
Muffler
_, _,_"_/°_,I_ _ Muffler
Backplate Bolts
Muffler -,.,_
Gasket _'_"_ _.
Bolt Cover "_
Locknut
1. Loosen and remove the Iocknut
from the bolt cover.
2. Remove the bolt cover.
3. Loosen and remove the 2 muffler
bolts. Remove the muffler, muffler
gasket, outlet guide and backplate.
Notice the orientation of these
parts for reassembling.
4. Locate the 2 outlet cover screws
on the muffler. Loosen and re-
move both screws.
5. Remove the outlet cover.
_, Outlet Cover BACK ViEW OF
6. Remove spark arresting screen.
7. Clean the spark arresting screen
with a wire brush. Replace screen if
any wires are broken or screen is
blocked after cleaning.
8. Reinstall spark arresting screen.
9. Reinstall outlet cover and 2
screws. Ensure outlet cover and
both screws are reinstalled cor-
rectly (see illustrations) to prevent
damage to the saw. The exhaust
outlet must face the chain brake
(bar side) of the saw.
Outlet Cover
Exhaust _
out,et
Exhaust Outlet must face chain
brake (bar side) of chain saw
10. Inspect the muffler gasket and re-
place if damaged.
11. Reinstall backplate, outlet guide,
muffler gasket, and muffler using
muffler bolts. Tighten until secure.
12. Reinstall bolt cover and Iocknut.
Tighten securely.
REPLACE SPARK PLUG
The spark plug should be replaced
each year to ensure the engine starts
easier and runs betteE Ignition timing
is fixed and nonadjustable.
1. Loosen 3 screws on cylinder
cover.
2. Remove the cylinder cover.
3. Pul! offthe spark plug boot.
4. Remove spark plug from cylinder
and discard.
5. Replace with Champion CJ-7Y
spark plug and tighten securely
with a 3/4inch socket wrench.
Spark plug gap shouId be 0.025 in.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
Screw Cylinder
Spa'rk___ °ver
REPLACE FUEL FILTER
To replace fuel filter, drain your unit by
running it dryoffuel. Remove fuel cap
and its connected retainer from tank.
Pull filter from tank and remove from
line. Replace and reassemble.
16
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