Troubleshooting - Sears 143.994006 Operator's Manual

TROUBLESHOOTING
THE FOLLOWING MAY HELP AVOID A DELAY IN YOUR WORK OR
SAVE THE EXPENSE OF A SERVICE CALL.
ENGINE FAILS TO START OR STARTS WITH DIFFICULTY
CAUSE
Controls not in star position.
Spark plugwire disconnected from spark plug.
Spark plugfouled.
Spark plug porcelaincracked.
Insufficient fuel.
REMEDY
Move ENGINE CONTROL or equipment control to "HI" or
START postion. See "STARTING" instructions in this
manual.
Connect SPARK PLUG WIRE to SPARK PLUG.
Remove SPARK PLUG and clean it. See "SPARK
PLUG" instructions in "MAINTENANCE' section in this
manual.
Install new spark plug.
Fill FUEL TANK per "BEFORE STARTING" instructions.
Water or dirt in fuel.
Impropercarburetoradjustment
Drain FUEL TANK and re-fillwith clean, fresh gasoline.
See 'BEFORE STARTING" instructions in this manual.
Adjustcarburetor(fapp cable). See "ADJUSTMENTS"
sectionin this manual.
ENGINE LACKS POWER
CAUSE
Dirtyair cleaner.
Impropercarburetoradjustment.
Lack of lubricaiton.
REMEDY
Replace or clean air cleanerper "AIR CLEANER"
instructions in "MAINTENANCE"sectionin this manual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section in this manual.
Fill oilsump to properlevel. See "BEFORESTARTING"
instructions sectionin thismanual.
ENGINE MISSES UNDER LOAD
CAUSE
Spark plug fouled.
Spark plug porcelaincracked.
Improperspark plug gap.
Impropercarburetoradjustment
REMEDY
Remove SPARK PLUG and clean it. See 'SPARK
PLUG' instructions in "MAINTENANCE" section in this
manual.
Installnew SPARK PLUG.
Regap SPARK PLUG electrodes. See "SPARK PLUG"
instructions in "MAINTENANCE" section in this manual.
Adjust carburetor (if applicable). See "ADJUSTMENTS"
section in this manual.
Page 5 181-1178-11