8
2.
Remove cap from fuel tank and use pump–type
syphon to drain fuel into clean gas can.
Note:
This is the only procedure
recommended for draining fuel.
Cleaning Cooling System
After every 75 operating hours, clean dirt and chaff
from cylinder, cylinder head fins and from around
carburetor and linkage. Also remove debris from air
intake slots on recoil housing. This will assure proper
cooling and optimum engine performance.
Cleaning Muffler And Exhaust
Port
Clean end of muffler pipe and exhaust port after every
75 hours of operation.
POTENTIAL HAZARD
•
Muffler and engine surface become hot
when mower is in operation.
WHAT CAN HAPPEN
•
Contact with hot muffler surface could
cause a burn.
HOW TO AVOID THE HAZARD
•
Clean muffler and exhaust port only after
engine and muffler are cool.
1.
Use hard wood scraper and remove carbon from
end of muffler pipe (Fig. 12).
2.
Remove screw, two nuts, and lockwashers
(Fig. 12). Slide muffler off mounting pins.
3.
Pull wire off spark plug. Slowly pull recoil
starter so piston covers exhaust port (Fig. 13).
4.
Clean carbon from exhaust port (Fig. 13) with
flat, hard wood scraper.
IMPORTANT: Do not use a metal scraper or
similar object to clean exhaust port because
accidental damage to the piston or cylinder
could easily occur.
5.
Reinstall muffler with screw, (2) nuts and
lockwashers (Fig. 12). After cleaning exhaust
port, make sure muffler gasket is still usable.
Adjusting Throttle (Fig. 12)
Throttle control adjustment may be required if engine
does not start. Whenever a new throttle control cable
is installed, throttle must be adjusted.
1.
Stop engine and pull wire off spark plug
(Fig. 10).
2.
Move throttle control to FAST
.
3.
Loosen cable clamp screw until throttle cable
slides (Fig. 14). Align holes in choke arm and
throttle bracket. A small dia. pin may be inserted
into aligned holes to hold adjustment.
4.
Push throttle cable until throttle arm makes
contact with choke arm. Tighten cable clamp.
Remove pin if used.
Inspecting/Removing/
Sharpening Blade
1.
Stop engine and pull wire off spark plug
(Fig. 10).
2.
Drain gasoline from fuel tank; refer to Draining
Gasoline, page 7.
3.
Tip mower on its left side (Fig. 15).
4.
INSPECTING BLADE—Carefully examine
blade for sharpness and wear, especially where
flat and curved parts meet (Fig. 16A). Since sand
and abrasive material can wear away the metal
that connects the flat and curved parts of the
blade, check blade before using the mower. If a
slot or wear is noticed, (Fig. 16B & C), replace
blade. Refer to step 5.
