Maintenance Schedule - Briggs & Stratton 120000 625 Series Operator's Manual

NOTE: If the engine does not start after repeated attempts, contact your local dealer or go
to BRIGGSandSTRATTON.com or call 1-800-233-3723 (in USA).
Choke System
1. Check the engine oil. See the Check Oil Level section.
2. Make sure equipment drive controls, if equipped, are disengaged.
3. Move the fuel shut-off (A, Figure 6), if equipped, to the ON position.
4. Move the throttle control (B, Figure 6), if equipped, to the FAST position. Operate
the engine in the FAST position.
5. Move the choke control (F, Figure 6), to the CLOSED position.
NOTE: Choke is usually unnecessary when restarting a warm engine.
6. Hold the engine stop lever (C, Figure 7), if equipped, against the handle.
7. Rewind Start, if equipped: Firmly hold the starter cord handle (E, Figure 6). Pull
the starter cord handle slowly until resistance is felt, then pull rapidly.
WARNING
Rapid retraction of the starter cord (kickback) will pull your hand and arm toward the
engine faster than you can let go. Broken bones, fractures, bruises or sprains could
result. When starting engine, pull the starter cord slowly until resistance is felt and then
pull rapidly to avoid kickback.
8. Electric Start, if equipped: Turn the key switch to the ON/START position.
NOTICE To extend the life of the starter, use short starting cycles (five seconds
maximum). Wait one minute between starting cycles.
9. As the engine warms up, move the choke control (F, Figure 6) to the OPEN position.
NOTE: If the engine does not start after repeated attempts, contact your local dealer or go
to BRIGGSandSTRATTON.com or call 1-800-233-3723 (in USA).
Stop Engine
WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
• Do not choke the carburetor to stop the engine.
1. Engine Stop Lever, if equipped: Release the engine stop lever (E, Figure 7).
Stop Switch, if equipped: Move the stop switch (D, Figure 6) to the OFF position.
Throttle Control, if equipped: Move the throttle control (B, Figure 6) to the STOP
position.
Key Switch, if equipped: Turn the key switch to the OFF/STOP position. See the
equipment manual for the location and operation of the key switch. Remove the key
and keep in a safe place out of the reach of children.
2. After the engine stops, move the fuel shut-off (A, Figure 6), if equipped, to the
CLOSED position.
Maintenance
NOTICE If the engine is tipped during maintenance, the fuel tank, if mounted on
engine, must be empty and the spark plug side must be up. If the fuel tank is not empty
and if the engine is tipped in any other direction, it may be difficult to start due to oil or
gasoline contaminating the air filter and/or the spark plug.
WARNING
When performing maintenance that requires the unit to be tipped, the fuel tank, if mounted
on the engine, must be empty or fuel can leak out and result in a fire or explosion.
We recommend that you see any Briggs & Stratton Authorized Service Dealer for all
maintenance and service of the engine and engine parts.
8
NOTICE All the components used to build this engine must remain in place for proper
operation.
WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation, or
laceration.
Fire hazard
Before performing adjustments or repairs:
• Disconnect the spark plug wire and keep it away from the spark plug.
• Disconnect battery at negative terminal (only engines with electric start.)
• Use only correct tools.
• Do not tamper with governor spring, links or other parts to increase engine speed.
• Replacement parts must be of the same design and installed in the same position
as the original parts. Other parts may not perform as well, may damage the unit, and
may result in injury.
• Do not strike the flywheel with a hammer or hard object because the flywheel may
later shatter during operation.
When testing for spark:
• Use approved spark plug tester.
• Do not check for spark with spark plug removed.
Emissions Control Service
Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any off-road engine repair establishment or individual. However,
to obtain "no charge" emissions control service, the work must be performed by a factory
authorized dealer. See the Emissions Control Statements.

Maintenance Schedule

First 5 Hours
• Change oil
Every 8 Hours or Daily
• Check engine oil level
• Clean area around muffler and controls
• Clean air intake grille
Every 25 Hours or Annually
• 1
Clean air filter
• 1
Clean pre-filter
Every 50 Hours or Annually
• Change engine oil
• Service exhaust system
Annually
• Replace spark plug
• Replace air filter
• Replace pre-cleaner
• Replace fuel filter
• 1
Service cooling system
1
In dusty conditions or when airborne debris is present, clean more often.
Carburetor and Engine Speed
Never make adjustments to the carburetor or engine speed. The carburetor was set at the
factory to operate efficiently under most conditions. Do not tamper with the governor spring,
linkages, or other parts to change the engine speed. If any adjustments are required contact
a Briggs & Stratton Authorized Service Dealer for service.
BRIGGSandSTRATTON.com