Craftsman 636.796912 - Manual (Page 9)

Table 2
. Engine
overheatsd
Improper fuel, used
Spark plug defectiva
' ibumt! ............ ..............
As cooling fins dog, air
' does not pass well '
Excessive deposits itt
■ combustion chamber
Use fuel with correct mixing ratio,
' ' Never use gasoline of poor quality.
...... Replace.
..... . Clean fins,
...... . Disassemble and remove carbon.
3 U»
.£
•o -
a
n
c
'm
c
m
. Firing function.
defective
, Carburetor _
defective
. Plug damaged or fouled..,,...... Replace or clean.
Combustion poor due to , . . Mvui Check wiring,
defective wiring ’
Needle setting
'incorrect
Carburetor overflow
. Air cleaner dogged ................
Readjust,,
........ Refer to Table 1,
Clean as necessary.
_ Other
troubles
Compression insufficient
(piston ring stuck or
worn out)
Cylinder chrome plating
' peeled or worn out ......................
Exhaust port dogged with
' carbon ............. ..............
Throttle is not fully
’ open .............. ............ ......... ............
Disassemble, check and replace
, if necessary.
. Replace cylinder,
. Clean as necessary.
, Readjust,