3.
Remove the air filter (F, Figure 9).
4.
Remove the pre-cleaner (G, Figure 9), if equipped, from the air filter (F).
5.
To loosen debris, gently tap the air filter (F, Figure 9) on a hard surface. If the air
filter is excessively dirty, replace with a new air filter.
6.
Wash the pre-cleaner (G, Figure 9) in liquid detergent and water. Allow the pre-
cleaner to air dry. Do not oil the pre-cleaner.
7.
Assemble the dry pre-cleaner (G, Figure 9), if equipped, to the air filter (F).
8.
Install the air filter (F, Figure 9) and secure with retainer (E) and nut (D).
9.
Install and secure the cover (B, Figure 9).
Service Cooling System
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.
NOTICE
Do not use water to clean the engine. Water could contaminate the fuel
system. Use a brush or dry cloth to clean the engine.
This is an air cooled engine. Dirt or debris can restrict air flow and cause the engine to
overheat, resulting in poor performance and reduced engine life.
1.
Use a brush or dry cloth to remove debris from the air intake grille.
2.
Keep linkage, springs and controls clean.
3.
Keep the area around and behind the muffler, if equipped, free of any combustible
debris.
4.
Make sure the oil cooler fins, if equipped, are free of dirt and debris.
After a period of time, debris can accumulate in the cylinder cooling fins and cause the
engine to overheat. This debris cannot be removed without partial disassembly of the
engine. Have a Briggs & Stratton Authorized Service Dealer inspect and clean the air
cooling system as recommended in the Maintenance Schedule.
Storage
WARNING
Gaseous vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Storing Fuel Or Equipment With Fuel In Tank
•
Store away from furnaces, stoves, water heaters or other appliances that have pilot
lights or other ignition sources because they can ignite fuel vapors.
Engine Oil
While the engine is still warm, change the engine oil. See the Change Engine Oil section.
NOTICE
Store the engine level (normal operating position). If the engine is tipped in
any other direction, it may be difficult to start due to oil contaminating the air filter and/or
the spark plug.
Troubleshooting
For assistance, contact your local dealer or go to VanguardEngines.com or call 1-800-
999-9333 (in USA).
Specifications
Model: 290000, 300000
Displacement
Bore
8
29.23 ci (479 cc)
2.677 in (68 mm)
Model: 290000, 300000
Stroke
Oil Capacity
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
Model: 350000
Displacement
Bore
Stroke
Oil Capacity
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
Model: 380000
Displacement
Bore
Stroke
Oil Capacity
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and
1% for each 10° F (5.6° C) above 77° F (25° C). The engine will operate satisfactorily at
an angle up to 15°. Refer to the equipment operator's manual for safe allowable operating
limits on slopes.
Service Parts - Model: 290000, 300000, 350000, 380000
Service Part
Air Filter - model 290000
Air Filter - model 300000, 350000, 380000
Air Filter Pre-cleaner
Oil - SAE 30
Oil Filter
Resistor Spark Plug
Long Life Platinum Spark Plug
Spark Plug Wrench
Spark Tester
We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance
and service of the engine and engine parts.
Warranty
Briggs & Stratton Engine Warranty
Effective January 2017
Limited Warranty
Briggs & Stratton warrants that, during the warranty period specified below, it will repair or
replace, free of charge, any part that is defective in material or workmanship or both.
Transportation charges on product submitted for repair or replacement under this warranty
must be borne by purchaser. This warranty is effective for and is subject to the time periods
2.598 in (66 mm)
46 - 48 oz (1,36 - 1,42 L)
.020 in (,51 mm)
180 lb-in (20 Nm)
.008 - .012 in (,20 - ,30 mm)
.004 - .006 in (,10 - ,15 mm)
.007 - .009 in (,18 - ,23 mm)
34.78 ci (570 cc)
2.835 in (72 mm)
2.756 in (70 mm)
46 - 48 oz (1,36 - 1,42 L)
.020 in (,51 mm)
180 lb-in (20 Nm)
.008 - .012 in (,20 - ,30 mm)
.004 - .006 in (,10 - ,15 mm)
.007 - .009 in (,18 - ,23 mm)
38.26 ci (627 cc)
2.972 in (75,5 mm)
2.756 in (70 mm)
46 - 48 oz (1,36 - 1,42 L)
.020 in (,51 mm)
180 lb-in (20 Nm)
.008 - .012 in (,20 - ,30 mm)
.004 - .006 in (,10 - ,15 mm)
.007 - .009 in (,18 - ,23 mm)
Part Number
394016
841359
272490
100028
842921
491055
696202, 5066
19374
19368
VanguardEngines.com