spark plug lead by twisting slightly
Remove, clean and inspect spark plugs.
Replace plug if tip of insulator is rough, cracked,
broken or blistered or ifthe electrodesare eroded.
Gap plug to .035 in. (0.9 mm).
Check spark plug gasket and carefully clean
spark plug seat on cylinder head.
DO NOT OVERTIGHTEN
PLUG OR DAMAGE
TO CYLINDER HEAD MAY
Spark plug leads are identified by a sleeve with
#1, #2 or #3.
- #1 is for top cylinder spark plug
- #2 is for middle cylinder spark plug
- #3 is for bottom cylinder spark plug
Install plugs finger tight, and then tighten about
1/4 turn or torque to 20 lb. ft. (27 N.m).
If the motor overheats,
check that a spray of water
out of the water pump indicator
19). If no water is present, stop motor IM-
and have your Sears Service Center
check for cause.
CHECK PROPELLER CONDITION
Check propeller for bent, chipped, cracked, or
missing blades-repair or replace as necessary.
Remove nut (Figure 20) securing propellerto pro-
Pull propeller straight back and off propeller shaft
(Figure 21). If propeller is frozen to shaft, tap pro-
peller gently with a block of wood.
Lubricate propeller shaft liberally (See Lubrica-
Reinstall propeller thrust washer, propeller and
nut. "13ghten nut to 120 lb. in. (13.5 N.m)
- 21 -