Briggs & Stratton 190000 Operator's Manual page 8

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
• Clean air filter
1
• Clean pre-filter
1
Every 50 Hours or Annually
• Service exhaust system
Every 100 Hours or Annually
• Change engine oil
Annually
• Replace spark plug
• Replace air filter
• Replace pre-cleaner
• Service cooling system
1
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.
NOTICE The equipment manufacturer specifies the maximum speed for the engine
as installed on the equipment. Do not exceed this speed. If you are not sure what the
equipment maximum speed is, or what the engine speed is set to from the factory,
contact a Briggs & Stratton Authorized Service Dealer for assistance. For safe and
proper operation of the equipment, the engine speed should be adjusted only by a
qualified service technician.
Service Spark Plug
See Figure: 8
Check the gap (A, Figure 8) 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
Service Exhaust System
WARNING
Running engines produce heat. Engine parts, especially muffler, become
extremely hot.
Severe thermal burns can occur on contact.
Combustible debris, such as leaves, grass, brush, etc. can catch fire.
• Allow muffler, engine cylinder and fins to cool before touching.
• Remove accumulated debris from muffler area and cylinder area.
• It is a violation of California Public Resource Code, Section 4442, to use or
operate the engine on any forest-covered, brush-covered, or grass-covered land
unless the exhaust system is equipped with a spark arrester, as defined in Section
4442, maintained in effective working order. Other states or federal jurisdictions
may have similar laws. Contact the original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for the exhaust system installed on this
engine.
Remove accumulated debris from muffler and cylinder area. Inspect the muffler for
cracks, corrosion, or other damage. Remove the deflector or the spark arrester, if
equipped, and inspect for damage or carbon blockage. If damage is found, install
replacement parts before operating.
WARNING
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.
Change Engine Oil
See Figure: 9, 10, 11
Used oil is a hazardous waste product and must be disposed of properly. Do not discard
with household waste. Check with your local authorities, service center, or dealer for
safe disposal/recycling facilities.
Remove Oil
1. With engine off but still warm, disconnect the spark plug wire (D, Figure 9) and
keep it away from the spark plug (E).
2. Remove the oil drain plug (F, Figure 10). Drain the oil into an approved container.
Note: Any of the oil drain plugs (G, Figure 10) may be installed in the engine.
3. After the oil has drained, install and tighten the oil drain plug (F, Figure 10).
Add Oil
• Make sure the engine is level.
• Clean the oil fill area of any debris.
• See the Specifications section for oil capacity.
Oil Fill Cap, if equipped
1. Remove the oil fill cap (H, Figure 10).
2. Pour the oil slowly into the engine oil fill (C, Figure 10). Fill to point of overflowing.
3. Install and tighten the oil fill cap (H, Figure 10).
4. Connect the spark plug wire (D, Figure 9) to the spark plug (E).
Short Dipstick, if equipped
1. Remove the dipstick (A, Figure 10) and wipe with a clean cloth.
2. Slowly pour oil into the engine oil fill (C, Figure 10). Fill to point of overflowing.
3. Install the dipstick (A, Figure 10). Do not turn or tighten. Remove and check the
oil level. Correct oil level is at the top of the full indicator (B) on the dipstick.
4. Reinstall and tighten the dipstick (A, Figure 10).
5. Connect the spark plug wire (D, Figure 9) to the spark plug (E).
Extended Dipstick, if equipped
1. Remove the dipstick (A, Figure 11) and wipe with a clean cloth.
2. Slowly pour oil into the engine oil fill (C, Figure 11). Do not overfill. After adding
oil, wait one (1) minute and then recheck the oil level.
3. Install and tighten the dipstick (A, Figure 11).
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