Briggs & Stratton THE POWER WITHIN 600 SERIES Operator's Manual page 14

Engine Maintenance
Regular maintenance will improve the performance and
extend the life of the engine. See any Authorized Briggs
& Stratton Dealer for service. Use only genuine
Briggs & Stratton parts. Other parts may not
perform as well, may damage the engine, and may
result in injury. In addition, use of other parts may void
your warranty.
Emission Control
Maintenance, replacement or repair of the emission
control devices and systems may be performed by
any nonroad engine repair establishment or
individual. However, to obtain no charge repairs under
the terms and provisions of the Briggs & Stratton
warranty statement, any service or emission control
part repair or replacement must be performed by a
factory authorized dealer. See Emission Warranty
section for details.
Follow the instructions and schedules indicated below.
Task
Perform task at hourly
or calendar interval,
whichever comes first.
Check Oil Level
*
Change Oil
Service foam air cleaner element **
Replace spark
plug
Inspect spark arrester (if equipped)
Clean air cooling system **
Clean combustion chamber
* Change oil after first 5 to 8 hours of use, then every 50 hours or every season. Change oil every 25 hours
when operating the engine under heavy load or in high temperatures.
** Clean more often under dusty conditions or when airborne debris is present. Replace air cleaner parts, if very
dirty.
*** On string trimmer applications:− clean debris at each refueling, sooner if needed
(see CLEANING DEBRIS section);− have qualified technician clean air cooling system every 30 hours, every
season, or sooner if needed, especially in high debris conditions (see AIR COOLING SYSTEM section).
14
WARNING
Unintentional sparking can result
in fire or electric shock.
Fire or explosion can cause
severe burns or death.
Unintentional start-up can result
in entanglement, traumatic
amputation, or laceration.
Before performing maintenance:
• Disconnect spark plug wire and
keep it away from spark plug.
• Disconnect battery at negative
terminal (only engines with electric
start).
• Do not strike the flywheel with a
hammer or hard object because
the flywheel may later shatter
during operation.
• Do not tamper with governor
spring, links or other parts to
increase engine speed.
• Use only correct tools.
When testing for spark:
• Use approved spark plug tester.
• Do not check for spark with spark
plug removed.