Emissions Control; Maintenance Chart; Carburetor Adjustment - Briggs & Stratton 150000 Operator's Manual

WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation,
or laceration.
Fire hazard
Use a 3-wire extension cord.
•
First attach extension cord to electric starter connector and then into a wall
•
receptacle. If additional extension cord is required, use a 3-wire.
If the supply cord is damaged, it must be replaced by the manufacturer or its service
•
agent or a similarly qualified person in order to avoid a hazard.
CAUTION: This engine was shipped from Briggs & Stratton without oil. Before you start
the engine, make sure you add oil according to the instructions in this manual. If you
start the engine without oil, it will be damaged beyond repair and will not be covered
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.
2. Make sure equipment drive controls, if equipped, are disengaged.
3. Push the stop switch (E), if equipped, to the on position (Figure 6).
or
Move the throttle control lever (B), if equipped, to the fast
Operate the engine with the throttle control lever in the fast position.
4. Turn the fuel shut-off valve (A), if equipped, to the on position (Figure 7).
5. Push in the safety key (C).
6. Turn the choke control knob (D) to the choke
Note: Choke is usually unnecessary when restarting a warm engine.
7. Push the primer (F) two times. See Figure 7.
Note: Priming is usually unnecessary when restarting a warm engine.
8. Rewind Start: Firmly hold the starter cord handle (G, Figure 7). Pull the starter cord
handle slowly until resistance is felt, then pull rapidly.
Note: If the engine does not start after three attempts, go to
BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).
WARNING:
Rapid retraction of the starter cord (kickback) will pull your
hand and arm toward the engine faster than you can let go. Broken bones,
fractures, bruises or sprains could result. When starting engine, pull the starter cord
slowly until resistance is felt and then pull rapidly to avoid kickback.
9. Electric Start: First connect the extension cord to the power cord receptacle (H,
Figure 8) and then into a wall receptacle. If an additional extension cord is required,
make sure it is a 3-wire.
WARNING:
If the extension cord is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualified person in order to avoid a
hazard.
10. Electric Start: Depress the push button (I). After you start the engine, first
disconnect the extension cord from the wall receptacle and then from the power cord
receptacle (H).
Note: If the engine does not start after three attempts, go to
BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).
CAUTION: To extend the life of the starter, use short starting cycles (five seconds
maximum). Wait one minute between starting cycles.
11. Allow the engine to warm up for several minutes. Then, slowly move the choke
control knob to the run position.
How To Stop The Engine - Figure 9
WARNING
Gasoline and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
Do not choke the carburetor to stop engine.
•
1. Move the stop switch (A), if equipped, to the stop position (Figure 9).
or
Move the throttle control lever (B), if equipped, to slow
position (Figure 10).
2. Remove the safety key (C, Figure 10). Keep the safety key out of reach of children.
3. After the engine stops, turn the fuel shut-off valve (D) to the closed position.
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.
en
position (Figure 7).
position.
10
and then to the stop
We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
CAUTION: All the components used to build this engine must remain in place for proper
operation.

Emissions Control

Maintenance, replacement, or repair of the emissions control devices and systems
may be performed by any non-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 Warranty.
WARNING
Unintentional sparking can result in fire or electric shock.
Unintentional start-up can result in entanglement, traumatic amputation,
or laceration.
Fire hazard
Before performing adjustments or repairs:
Disconnect the spark plug wire and keep it away from the spark plug.
•
Use only correct tools.
•
Do not tamper with governor spring, links or other parts to increase engine speed.
•
Replacement parts must be the same and installed in the same position as the
•
original parts.
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.
•

Maintenance Chart

First 5 Hours
Change oil
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Every 8 Hours or Daily
Check engine oil level
•
Every 50 Hours or Annually
Change engine oil
•
Check muffler and muffler guard
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Annually
Replace spark plug
•
Check valve clearance **
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** Not required unless engine performance problems are noted.

Carburetor Adjustment

Never make adjustments to the carburetor. The carburetor was set at the factory to
operate efficiently under most conditions. However, if adjustments are required, see any
Briggs & Stratton Authorized Dealer for service.
CAUTION: The manufacturer of the equipment on which this engine is installed specifies
the top speed at which the engine will be operated. Do not exceed this speed.
How To Replace The Spark Plug - Figure 11
Check the gap (A, Figure 11) 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.
How To Access The Spark Plug
(2-Piece Snow Hood) - Figure 12
To access the spark plug, the snow hood must be removed as follows:
1. Remove the safety key (A, Figure 12). Keep the safety key out of reach of children.
2. Grasp the choke control knob (B) and pull up to remove.
3. Remove the mounting screws (C, Figure 13).
4. Carefully remove the top part of the snow hood (D). Do not disconnect the primer
hose (E) or the stop switch wire (F).
5. The spark plug (G) can now be accessed.
6. Before installation of the snow hood, make sure that the primer hose and the stop
switch wire are connected.
7. Mount the top part of the snow hood to the snow hood base (H). Make sure the top
interlocks with the base. Secure with the mounting screws.
8. Align the slots in the choke control knob with the tabs on the choke shaft (I) and then
push down to install. If the knob is not installed correctly, the choke will not operate.
9. Do not install the safety key until you are ready to start the engine.
How To Access The Spark Plug
(1-Piece Snow Hood) - Figure 14
To access the spark plug, the snow hood must be removed as follows:
1. Remove safety key (A, Figure 14). Keep the safety key out of reach of children.
2. Grasp the choke control knob (B) and pull up to remove.
3. Remove the mounting screws (C).
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