Craftsman 636.796912 - Manual (Page 7)

VIH. CHECK AND MAINTENANCE
1. Air cleaner (Fig. 10)
(1) Remove air cleaner cover and take out air filter.
(2) Accumuiated dust on the air filter will reduce engine
efficiency and increase fuel consumption,
{3} Wash air filter and dry it wetl,
CAUTION
Do not use gasoline and inflammable solvent to clean the
filter.
Air cleaner case
Air filter
Figure 10
Fuel strainer (Fig, 11)
(1)
Fuel tank is fitted with a fuel strainer located under
filler cap- Do not remove this strainer when filling
the tank.
(2) The strainer should be removed and cleaned at
regular intervals.
Fuel tank cap
'Fuel strainer
-Packing B
Figure 11
3, Spark plug (Fig. 12)
4,
(1) Clean or replace the piug if fouled with oily black
deposits,
(2) Replace the plug if the center electrode is rounded
at the end or if the ground electrode is worn,
(3) Adjust the gap 0,6 — 07 mm ( 024 — ,028").
Carburetor (Fig. 13)
(1) Carburetor has been correctly adjusted at the factory
for optimum performance.
To adjust idling speed, turn the throttle stop screw
(turning it clockwise increases engine speed and
turning it counterclockwise reduces the speed).
Idling speed must be adjusted to me minimum
constant speed.
( 2 )
(3)
B, MUFFLER AND EXHAUST PORT (Fig. 14)
in the event that the engine should lose power and overheat,
the muffler should be removed and checked for excessive
deposits. Carbon build up in the exhaust port should be
removed with a piece of wood, removing that particles of
carbon deposits from the muffler flange area and wash the
complete unit in a suitable solvent.
Spark arrester
Screw
Figure 14