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

WARNING
Fuel and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Starting Engine
Ensure that spark plug, muffler, fuel cap and air cleaner (if equipped) are in

place and secured.
Do not crank engine with spark plug removed.

If engine floods, set choke (if equipped) to OPEN/RUN position, move throttle

(if equipped) to FAST position and crank until engine starts.
WARNING
POISONOUS GAS HAZARD. Engine exhaust contains carbon
monoxide, a poisonous gas that could kill you in minutes. You
CANNOT see it, smell it, or taste it. Even if you do not smell exhaust
fumes, you could still be exposed to carbon monoxide gas. If you start
to feel sick, dizzy, or weak while using this product, shut it off and get
to fresh air RIGHT AWAY. See a doctor. You may have carbon
monoxide poisoning.
Operate this product ONLY outside far away from windows, doors and vents to

reduce the risk of carbon monoxide gas from accumulating and potentially being
drawn towards occupied spaces.
Install battery--operated carbon monoxide alarms or plug--in carbon monoxide

alarms with battery back-up according to the manufacturer's instructions.
Smoke alarms cannot detect carbon monoxide gas.
DO NOT run this product inside homes, garages, basements, crawlspaces,

sheds, or other partially-enclosed spaces even if using fans or opening doors
and windows for ventilation. Carbon monoxide can quickly build up in these
spaces and can linger for hours, even after this product has shut off.
ALWAYS place this product downwind and point the engine exhaust away from

occupied spaces.
NOTICE: 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: Equipment may 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. Turn the fuel shut-off valve (A), if equipped, to the on position (Figure 5).
4. Move the choke control lever (B) to the choke
Note: Choke is usually unnecessary when restarting a warm engine.

Maintenance

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.
WARNING:
When performing maintenance that requires the unit to be
tipped, the fuel tank must be empty or fuel can leak out and result in a fire or
explosion.

Emissions Control

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 Warranty.
8
position.
5. Move the throttle control lever (C), if equipped, to the fast
the engine with the throttle control lever in the fast position.
6. On engines equipped with a stop switch (D), move the switch to the on position.
7. 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, contact your local dealer
or 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.
8. Electric Start with Safety Key (F): Push in the safety key (F). Momentarily push the
start switch (G). When the engine starts, release the start switch (Figure 6).
9. Electric Start with Automotive Key Switch (H): Turn the key switch (H) to the start
position. When the engine starts, release the key switch (Figure 8).
NOTICE: To prolong starter life, use short starting cycles, not to exceed 15 seconds
per minute. Extended cranking can damage the starter motor.
NOTE: If the engine does not start after repeated attempts, contact your local dealer
or go to BRIGGSandSTRATTON.COM or call 1-800-233-3723 (in USA).
10. As the engine warms up, move the choke control (B) to the run
(Figure 5).
How To Stop The Engine - Figure 7
WARNING
Fuel 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. On models equipped with a throttle control lever (A), move the throttle control lever to
slow and then to the stop
Move the stop switch (B), (if equipped) to the stop position.
Electric Start: Remove the safety key (C, Figure 7). Keep the safety key out of
reach of children.
Turn the key switch (H, Figure 8) to the off
Keep the key switch out of reach of children.
2. After the engine stops, turn the fuel shut-off valve (D) to the closed position. See
Figure 7.
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.

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.

position. Operate
position (see Figure 7).
or
or
or
position. Remove the key switch.
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position