Emissions Control; Maintenance Chart - Briggs & Stratton 725 Serie Manual Del Operario

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.
System - Figure 4
ReadyStart
®
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 (A), if equipped, to the on position (Figure 4).
4. Turn the fuel shut-off valve (B), if equipped, to the on position.
5. Move the throttle control (C) to the fast
position.
6. If the product is equipped with an engine stop lever (D), hold the engine stop lever
against the handle (Figure 5).
7. Rewind Start: Firmly hold the starter cord handle (E). Pull the starter cord handle
slowly until resistance is felt, then pull rapidly (Figure 4).
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: Turn the electric start switch to the on/start position.
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).
NOTICE: To extend the life of the starter, use short starting cycles (five seconds
maximum). Wait one minute between starting cycles.
How To Stop The Engine - Figure 5
1. Release the engine stop lever (A, Figure 5)
or
Engine with Throttle Control: Move the throttle control (B, Figure 7) to the stop
position
or
Engine with Stop Switch: Push the stop switch (C, Figure 7) to the off position
or
Engine with Electric Start: Turn the electric start switch to the off/stop position.
See the equipment manual for the location and operation of the switch. Remove the
key and keep in a safe place out of the reach of children.
2. Engine with optional Fuel Shut-off: After the engine stops, turn the fuel shut-off
valve (D, Figure 7) to the closed position.
Maintenance
NOTICE: If the engine is tipped during maintenance, the fuel tank must be empty and
the spark plug side must be up. If the fuel tank is not empty and if the engine is tipped in
any other direction, it may be difficult to start due to oil or gasoline contaminating the air
filter and/or the spark plug.
en
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position. Operate the engine in the fast
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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.
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.

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.
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.


Maintenance Chart

First 5 Hours
Change oil

Every 8 Hours or Daily
Check engine oil level

Clean area around muffler and controls

Clean finger guard

Every 25 Hours or Annually
Clean air filter *

Clean pre-cleaner *

Every 50 Hours or Annually
Change engine oil

Check muffler and spark arrester

Annually
Replace air filter

Replace pre-cleaner

Replace spark plug

Replace fuel filter

Clean air cooling system *

* In dusty conditions or when airborne debris is present, clean more often.
Carburetor And Engine Speed Adjustment
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 Center for service.
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