Briggs & Stratton 190000 Operator's Manual page 8

Emissions Control Service
For maintenance, replacement, or repair of emissions control devices and
systems, contact a qualified off-road engine repair establishment or service
technician. However, for "no charge" emissions control service, the work must be done
by a factory authorized dealer. Refer to the Emissions Control Statements.
Carburetor and Engine Speed
Do not make adjustments to the carburetor or engine speed. The carburetor was
set at the factory to operate satisfactorily in most conditions. Do not change the
governor spring, linkages, or other parts to adjust the engine speed. If adjustments
are necessary, contact a Briggs & Stratton Authorized Service Dealer for servicing.
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 correct operation
of the equipment, the engine speed should only be adjusted by a qualified service
technician.
Maintenance Schedule
First 5 Hours
• Change the oil.
Intervals of 8 Hours or Daily
• Check the engine oil level.
Intervals of 50 Hours or Annually
• Change the engine oil.
• Check the muffler and muffler guard.
Annually
• Replace the spark plug.
•
1
Check the valve clearance .
1
Not necessary unless engine problems occur.
Servicing the Spark Plug
Check the spark plug gap (A, Figure 9) with a wire gauge (B). If necessary, set the
spark plug gap. Install and tighten the spark plug to the correct torque. For gap or torque
specifications, refer to the Specifications section.
NOTE: In some areas, it is mandatory by local law that you use a resistor spark plug
to decrease ignition signals. If a resistor spark plug was installed by the equipment
manufacturer, use the same type for replacement.
Remove the Snow Hood
To get to the spark plug, the snow hood must be removed. Refer to the steps that follow:
1. Remove the key (A, Figure 10). Keep the key out of reach of children.
2. Tightly hold the throttle control knob (B, Figure 10) and pull it off of the throttle
control lever.
3. Hold the choke control knob (C, Figure 10) and pull it up to remove.
4. Remove the mounting screws (D, Figure 10).
5. Carefully open the snow hood (E, Figure 10). Do not disconnect the primer hose
(F), if equipped, or the key switch wire (G).
NOTE: At this time, you can get access to the spark plug (H, Figure 10).
6. Before installation of the snow hood (E, Figure 10), make sure that the primer hose
(F), if equipped, and the key switch wire (G) are connected.
7. Install the snow hood (E, Figure 10) and attach with the mounting screws (D)
8. Align the slots in the choke control knob (C, Figure 10) with the tabs on the choke
shaft (J) and then push down to install. If the choke control knob (C) is not installed
correctly, the choke will not operate.
9. Push the throttle control knob (B, Figure 10) onto the throttle control lever.
NOTE: Do not install the key (A, Figure 10) until you start the engine. See Start the
Engine section.
8
Servicing the Exhaust System
WARNING
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
Combustible materials, such as leaves, grass and brush, can catch fire.
• Before you touch the engine or muffler, stop the engine and wait two (2)
minutes. Make sure that the engine and muffler are safe to touch.
• Remove debris from the muffler and engine.
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;
reference Federal Regulation 36 CFR Part 261.52. Contact the original equipment
manufacturer, retailer, or dealer to obtain a spark arrester designed for the exhaust
system installed on this engine.
Remove debris from the 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 the replacement parts
before you operate the equipment.
WARNING
Replacement parts must be of the same design and installed in the same position as the
original parts. Other parts could result in damage or an injury.
Change Engine Oil
WARNING
Fuel and its vapors are flammable and explosive. Fire or explosion could result in
burns or death.
During operation, the engine and muffler become hot. If you touch a hot engine,
thermal burns can occur.
• If you drain the oil from the top oil fill tube, the fuel tank must be empty. If it is not
empty, fuel leakage can occur and cause a fire or an explosion.
• Before you touch the engine or muffler, stop the engine and wait two (2)
minutes. Make sure that the engine and muffler are safe to touch.
Used oil is a hazardous waste product and must be discarded of correctly. Do not
discard with household waste. Contact your local authorities, service center, or dealer
for safe disposal or recycling facilities.
Remove Oil
1. With the engine OFF but warm, disconnect the spark plug wire (D, Figure 11), and
keep it away from the spark plug (E).
NOTE: To get access to the spark plug wire, you must remove the snow hood from the
engine. See Remove the Snow Hood section.
2. Remove the drain cap (F, Figure 12). Drain the oil into an approved container.
3. After the oil has drained, install and tighten the oil drain cap (F, Figure 12).
Add Oil
• Make sure that the engine is level.
• Clean the oil fill area of debris.
• See the Specifications section for oil capacity.
Short Dipstick, if installed
1. Remove the dipstick (A, Figure 13). Use a cloth to remove oil from the dipstick.
2. Install the dipstick (A, Figure 13). Do not turn or tighten the dipstick.
3. Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 13) on the dipstick.
4. If the oil level is low, slowly add oil into the engine oil fill (C, Figure 13). Do not add
too much oil. Wait one minute and check the oil level again. Make sure that the oil
level is correct.
5. Install and tighten the dipstick (A, Figure 13).
Extended Dipstick, if installed
1. Remove the dipstick (A, Figure 14). Use a cloth to remove remaining oil from the
dipstick.
2. Install the dipstick (A, Figure 14). Do not turn or tighten the dipstick..
3. Remove the dipstick and check the oil level. The correct oil level is at the top of the
full indicator (B, Figure 14) on the dipstick.