Emissions Control; Maintenance Chart - Briggs & Stratton Vanguard 350000 Operator's Manual

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.
For information on starting and stopping the engine, read the operating instructions
supplied by the equipment manufacturer.
Note: Some engines and equipment have remote controls. See the equipment manual
for location and operation of remote controls.
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.

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

Every 8 Hours or Daily
Clean area around muffler and controls

Every 100 Hours or Annually
1
Clean or change air filter

Replace spark plug

Check muffler and spark arrester

Check valve clearance. Adjust if necessary.

Every 400 Hours or Annually
1
Clean air cooling system

1
Clean oil cooler fins

Every 500 Hours or Annually
Change engine oil, oil filter, and oil in remote oil tank.

1
In dusty conditions or when airborne debris is present, clean more often.
2
See Oil Capacity listed in the Specifications section.
How To Replace The Spark Plug - Figure 4
Check the gap (A, Figure 4) 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.
en
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.
Inspect Muffler And Spark Arrester - Figure 5



Remove accumulated debris from muffler area and cylinder area. Inspect the muffler (A,
Figure 5) for cracks, corrosion, or other damage. Remove the spark arrester (B), if
equipped, and inspect for damage or carbon blockage. If damage is found, install
replacement parts before operating.
in the same position as the original parts. Other parts may not perform as well, may
damage the unit, and may result in injury.
How To Change The Oil - Figure 3
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 From Engine
1. With engine off but still warm, disconnect the spark plug wire (A) and keep it away
2. Remove the oil drain plug (B, Figure 9). Drain the oil into an approved container.
3. After the oil has drained, install and tighten the oil drain plug.
Change The Oil Filter (if equipped)
Some models are equipped with oil filter. For replacement intervals, see the
Maintenance chart.
1. Drain the oil from the engine. See Remove Oil section.
2. Remove the oil filter (C) and dispose of properly. See Figure 10.
3. Before you install the new oil filter, lightly lubricate the oil filter gasket with fresh,
4. Install the oil filter by hand until the gasket contacts the oil filter adapter, then tighten
5. Add oil. See Add Oil section.
6. Start and run the engine. As the engine warms up, check for oil leaks.
7. Stop the engine and check the oil level. It should be at the top of the full indicator (F)
Add Oil To Engine



1. Remove the dipstick (D) and wipe with a clean cloth (Figure 11).
2. Pour the oil slowly into the engine oil fill (E). Do not overfill. After adding oil, wait
2
3. Install and tighten the dipstick.
4. Remove the dipstick and check the oil level. It should be at the top of the full indicator
5. Install and tighten the dipstick.
Remove Oil From Remote Oil Tank
1. Clean oil fill area at top of remote oil tank.
2. Remove oil fill cap (A, Figure 3).
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.
WARNING:
Replacement parts must be of the same design and installed
from the spark plug (Figure 8).
clean oil.
the oil filter 1/2 to 3/4 turns.
on the dipstick.
Place engine level.
Clean the oil fill area of any debris.
See the Specifications section for oil capacity.
one minute and then check the oil level.
(F) on the dipstick.
8 9 10 11
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