Briggs & Stratton 12K300 - Manual (Page 11)

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11
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.
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 or repairs:
• Disconnect spark plug wire and keep it away from
spark plug.
• Disconnect battery at negative terminal (only
engines with electric start).
• Use only correct tools.
When testing for spark:
• Use approved spark plug tester.
• Do not check for spark with spark plug removed.
WARNING
Follow the instructions and schedules indicated below.
Clean Combustion Chamber
Task
Perform task at hourly
or calendar interval,
whichever comes first.
Check Oil Level
Clean Debris
Clean Air Cooling System
Replace Spark Plug
Change Oil **
Service Air Cleaner *
* Clean more often under dusty conditions or when airborne debris is present. Replace air cleaner, if very dirty.
** Change oil after first 5 to 8 hours of use, then every 50 hours. Change oil every 25 hours when operating the engine
under heavy load or in high temperatures.