Snapper 300000 Maintenance, for, NOTICE:, NOTICE:, NOTICE:, NOTICE:, Fire hazard, Fi st 5 H s, Reproduction, Rewind Start:, Rewind Start:, Do not exceed, Electric Start:

	Emissions Control
WARNING	Maintenance, replacement, or repair of the emissions control devices and systems
	may be performed by any non-road engine repair establishment or individual.
Engines give off carbon monoxide, an odorless, colorless, poison gas.	However, to obtain “no charge” emissions control service, the work must be performed
Breathing carbon monoxide can cause nausea, fainting or death.
	by a factory authorized dealer. See the Emissions Warranty.

•Start and run engine outdoors.

• Do not start or run engine in enclosed area, even if doors or windows are open.									WARNING
									Unintentional sparking can result in fire or electric shock.
NOTICE: This engine was shipped from Briggs & Stratton without oil. Before you start									Unintentional start-up can result in entanglement, traumatic
the engine, make sure you add oil according to the instructions in this manual. If you									amputation, or laceration.
start the engine without oil, it will be damaged beyond repair and will not be covered									Fire hazard
under warranty.
Note: Some engines and equipment have remote controls. See the equipment manual
for location and operation of remote controls.
1.	Check the oil level. See the How To Check/Add Oil section.							Before performing adjustments or repairs:
2.	Make sure equipment drive controls, if equipped, are disengaged.							•	Disconnect the spark plug wire and keep it away fr		m the spark plug.
								•	Disconnect battery at negative term nal (	nly eng	es with electric start.)
3.	Turn the fuel shut-off valve (A), if equipped, to the on position (Figure 4).
								•	Use only correct tools.
4.	Push the stop switch (F), if equipped, to the on position.
								•	Do not tamper with governor spring, l nks	r her parts to increase engine
5.	Move the throttle control (B) to the fast				position. Operate the engine in the fast				speed.
								•	Replacement parts must be the same and ns alled n the same position as the
	position.
									original parts.
6.	Move the choke control (C) to the choke				position.			• Do not strike the flywheel with a hammer or hard object because the flywheel
									may later shatter d ring operation.
	Note: Choke is usually unnecessary when restarting a warm engine.							When testing for spark:
7.	Rewind Start: Turn the key switch (D), if equipped, to the run position.							•	Use approved spark pl g tester.
								•	Do not check for spark with spark pl g removed.
8.	Rewind Start: Firmly hold the starter cord handle (E). Pull the starter cord handle
	slowly until resistance is felt, then pull rapidly.
	Note: If the engine does not start after repeated attempts, go to
	BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).
								Maintenance Chart
	WARNING: Rapid retraction of the starter cord (kickback) will pull your
								Fi st 5 H s
hand and arm toward the engine faster than you can let go. Broken bones, fractures,
									Change oil
bruises or sprains could result. When starting engine, pull the starter cord slowly until								•
resistance is felt and then pull rapidly to avoid kickback.
								Every 8 Hours or Daily
9.	Electric Start: Turn the electric start switch (D) to the on/start position.
								•	Check engine oil level
	Note: If the engine does not start after repeated attempts, go to							•	Clean area around muffler and controls
	BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).
								Every 100 Hours or Annually
	NOTICE: To extend the life of the starter, use short starting cycles (five s conds
	maximum). Wait one minute between starting cycles.							•	Clean air filter *
10.	As the engine warms up, move the choke cont ol (C) to the un						position.	• Clean pre-cleaner (if equipped) *
								• Change engine oil and filter
								•	Replace spark plug
How To Stop The Engine - Figure 4								• Check muffler and spark arrester
								•	Check valve clearance **
						Reproduction
								Every 400 Hours or Annually
	WARNING							•	Change air filter
	Gasoline and i s vapors are ex remely lammable and explosive.							•	Replace fuel filter
								•	Clean air cooling system *
	Fire or explosion can cause severe burns death.
									Clean oil cooler fins *
			for					•
•	Do not ch	ke the carbure r s		p engine.				* In dusty conditions or when airborne debris is present, clean more often.
								**	Not required unless engine performance problems are noted.
1.	With the thr	ttle c ntr l (B) in the sl		w	position, turn the key switch (D) to the
								Carburetor Adjustment
	off position (Figure 4). Remove the key and keep in a safe place out of the reach of
	children.							Never make adjustments to the carburetor. The carburetor was set at the factory to
2.	Push the stop switch (F) to the off position.							operate efficiently under most conditions. However, if adjustments are required, see a
3.	After the engine stops, turn the fuel shut-off valve (A), if equipped, to the closed							Briggs & Stratton Authorized Dealer for service.
								NOTICE: The manufacturer of the equipment on which this engine is installed specifies
	position.
								the top speed at which the engine will be operated. Do not exceed this speed.

Maintenance

Use only original equipment replacement parts. Other parts may not perform as well, may damage the unit, and may result in injury. In addition, use of other parts

may void your warranty.

We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts.

NOTICE: All the components used to build this engine must remain in place for proper operation.

How To Replace The Spark Plug - Figure 5

Check the gap (A, Figure 5) with a wire gauge (B). If necessary, reset the gap. Install and tighten the spark plug to the recommended torque. For gap setting or torque, see the Specifications section.

Note: In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this engine was originally equipped with a resistor spark plug, use the same type for replacement.

8 BRIGGSandSTRATTON.COM