Briggs & Stratton 300000 - Manual (Page 10)

10 BRIGGSandSTRATTON.COM
Storage
WARNING
Gasoline and its vapors are extremely flammable and explosive.
Fire or explosion can cause severe burns or death.
When Storing Gasoline Or Equipment With Fuel In Tank
•
Store away from furnaces, stoves, water heaters or other appliances that have
pilot light or other ignition source because they can ignite gasoline vapors.
Fuel System
Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum
deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh,
use Briggs & Stratton FRESH START ® fuel stabilizer, available as a liquid additive or a
drip concentrate cartridge.
There is no need to drain gasoline from the engine if a fuel stabilizer is added according
to instructions. Run the engine for 2 minutes to circulate the stabilizer throughout the fuel
system. The engine and fuel can then be stored up to 24 months.
If gasoline in the engine has not been treated with a fuel stabilizer, it must be drained into
an approved container. Run the engine until it stops from lack of fuel. The use of a fuel
stabilizer in the storage container is recommended to maintain freshness.
Engine Oil
While the engine is still warm, change the engine oil.
Troubleshooting
Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723.
Specifications
Engine Specifications
Model 290000
Displacement 29.23 ci (479 cc)
Bore 2.677 in (68 mm)
Stroke 2.598 in (66 mm)
Oil Capacity 46 -- 48 oz (1.36 -- 1.42 L)
Engine Specifications
Model 300000
Displacement 29.23 ci (479 cc)
Bore 2.677 in (68 mm)
Stroke 2.598 in (66 mm)
Oil Capacity 46 -- 48 oz (1.36 -- 1.42 L)
Engine Specifications
Model 350000
Displacement 34.78 ci (570 cc)
Bore 2.835 in (72 mm)
Stroke 2.756 in (70 mm)
Oil Capacity 46 -- 48 oz (1.36 -- 1.42 L)
Engine Specifications
Model 380000
Displacement 38.26 ci (627 cc)
Bore 2.972 in (75.5 mm)
Stroke 2.756 in (70 mm)
Oil Capacity 46 -- 48 oz (1.36 -- 1.42 L)
Tune-up Specifications *
Model 290000, 300000
Spark Plug Gap 0.030 in (0.76 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap 0.008 - 0.012 in (0.20 - 0.30 mm)
Intake Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm)
Exhaust Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm)
Tune-up Specifications *
Model 350000, 380000
Spark Plug Gap 0.030 in (0.76 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap 0.008 - 0.012 in (0.20 - 0.30 mm)
Intake Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm)
Exhaust Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm)
* 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.
Common Service Parts n
Service Part Part Number
Air Filter -- except model 380000 394018
Air Filter -- model 380000 692519
Air Filter Pre-cleaner -- except model 380000 272490
Air Filter Pre-cleaner -- model 380000 692520
Oil -- SAE 30 100028
Oil Filter -- 6 cm long 492932
Oil Filter -- 9 cm long 491056
Service Part Part Number
Fuel Filter -- with fuel tank 808116
Fuel Filter -- with fuel pump 691035
Fuel Filter -- without fuel pump 298090
Fuel Additive 5041
Resistor Spark Plug 491055
Long Life Platinum Spark Plug 5066
Spark Plug Wrench 19374
Spark Tester 19368
n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts.
Not for Reproduction