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CYLINDER COOLING FINS
Maintenance Interval:
The cylinder cooling fins should be cleaned after every 25 hours of operation or once a week
which ever comes first. Air must flow freely around and through the cylinder cooling fins to prevent
engine overheating. Leaves, grass, dirt, and debris buildup on the fins will increase the operating
temperature of the engine which can reduce engine performance and shorten engine life.
Maintenance:
With the engine at ambient (room) temperature, remove the two socket head screws, keep remove
the cover (FIG.1). Remove the two socket head screws and remove the tail pipe (FIG.2). Loosen
the cylinder cover screw (knob) and lift off the cylinder cover (FIG.3). Clean all dirt and debris from
the cooling fins and from around the cylinder base. Reinstall the cylinder cover, tail pipe, and the
cover.
3 mm ALLEN WRENCH
SUPPLIED IN TOOL KIT
KNOB
CYLINDER COVER
FIG.1
FIG.2
FIG.3
SPARK ARRESTER
TAIL
SOCKET
HEAD SCREW
SPARK ARRESTER
Maintenance Interval:
The spark arrester should be inspected and
cleaned after every 25 hours of use. Replace the
screen if it cannot be thoroughly cleaned or if it is
damage.
Maintenance:
With the engine at ambient (room) temperature.
Remove the two socket head screws holding the
tail and spark arrester to the muffl er. Remove and
clean the tail, gasket, and spark arrester with a
safety solvent and a stiff brush. If any part cannot
be thoroughly cleaned it must be replaced.
Reinstall the spark arrester and tail onto the
muffl er, then reinstall and tighten the two socket
head screws.
