MACHINE TROUBLESHOOTING
LIGHTNING 86039180 05/23/07
4-3
PROBLEM
.
CAUSE SOLUTION
Will not start
No fuel or dirt in fuel line
See engine owners manual for servicing.
Blown head gasket
NOTE:
ONLY
properly trained service technicians
Engine overload
Should adjust or repair fuel system.
Dirty air cleaner
Faulty
spark
plug
Fuel system out of
adjustment
Defective ignition coil
Hard to start
No fuel or dirt in fuel line
See engine owners manual for servicing.
Engine
overload
Dirty air cleaner
Faulty
spark
plug
Spark plug or head bolts
loose
Blown head gasket
Timing, Coil or Valves
need adjustment
Regulator need adjustment
Insufficient
vacuum
Lacks Power
Improper valve clearance
See engine owners manual for servicing.
Dirt in fuel line
Faulty
spark
plug
Improper oil level
Worn
rings
Odor of burned rubber
Belt out of adjustment
See “Adjusting Belt Tension” pg. 3-3
Engine overheats
Incorrect oil level
See engine owners manual for servicing.
Engine
overload
Build up of dirt inside
engine shroud
High fuel consumption
Faulty spark plug
See engine owners manual for servicing.
Dirty air cleaners
Improper fuel system
adjustment
Machine stops suddenly
Out of fuel
Change fuel cylinders
Faulty spark plugs
Clean adjust or replace spark plug
Pad not centered on pad
driver
Center pad or pad driver
Incorrect pad size
Replace with proper pad
Low oil
Add oil (see pg. 3-3)