Troubleshooting - Briggs & Stratton 120000 Operator's Manual

Troubleshooting

PROBLEM
Will not start
Difficult to start
or
Does not run smoothly Does not run smoothly
or or
Will not run at full speed
Can not pull starter rope
Excessive smoke
Excessive vibration
Need Assistance?
18
CAUSE
Out of fuel
Flooded carburetor
Low oil
Oil level is above FULL mark on
dipstick
Fouled spark plug
Fuel shut-off valve, if equipped, is
closed.
Stop switch, if equipped, is in off
position.
Safety key is not installed.
Stale fuel
Dirt in fuel tank
Carburetor out of adjustment
Fouled spark plug
Debris in control linkages
Equipment controls, if equipped,
are engaged
Engine seized
Oil level is above FULL mark on
dipstick
Fouled spark plug
Loose parts on engine or
equipment
Go to BRIGGSandSTRATTON.COM or call
CORRECTION
Add clean fresh fuel.
Move the choke control to run and the throttle
control, if equipped, to fast. Then follow the
starting procedure until the engine starts.
Check oil level. Add to FULL mark on dipstick.
Drain excess oil from engine to bring oil level to
FULL mark on dipstick.
Clean and set spark plug gap (see
Specifications section). If the spark plug
electrode is burned or worn, replace the spark
plug.
Open the fuel shut-off valve.
Push the stop switch to the on position.
Install safety key.
Drain fuel tank. Fill with fresh fuel.
Drain and clean fuel tank. Fill with fresh fuel.
Contact a Briggs & Stratton Authorized Dealer.
Clean and set spark plug gap (see
Specifications section). If the spark plug
electrode is burned or worn, replace the spark
plug.
Carefully clean debris from control linkages.
Disengage equipment controls
Contact a Briggs & Stratton Authorized Dealer
Drain excess oil from engine to bring oil level to
FULL mark on dipstick.
Clean and set spark plug gap (see
Specifications section). If the spark plug
electrode is burned or worn, replace the spark
plug.
Stop engine immediately. Tighten all fasteners.
Replace any damaged parts. If vibration
continues, contact a Briggs & Stratton Authorized
Dealer.
(800) 233-3723
BRIGGSandSTRATTON.COM