9
en
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 f rom furnaces, stoves, water heaters or other appliances that have
pilot lights or other ignition sources 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 for2 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 notbeen 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. See the How To Change The Oil
section.
Troubleshooting
Need Assistance? Go to BRI GGSandSTRATTON.COM or call 1-800-233-3723.
Specifications
Engine Specifications
Model 210000
Displacement 21.01 ci (344 cc)
Bore 3.437 in (87.30 mm)
Stroke 2.264 in (57.51 mm)
Oil Capacity --without filter 42 -- 44 oz (1.24 -- 1.30 L)
Oil Capacity --with filter 46 -- 48 oz (1.36 -- 1.40 L)
Engine Specifications
Model 310000
Displacement 30.59 ci (501 cc)
Bore 3.563 in (90.49 mm)
Stroke 3.062 in (77.77 mm)
Oil Capacity --without filter 42 -- 44 oz (1.24 -- 1.30 L)
Oil Capacity --with filter 46 -- 48 oz (1.36 -- 1.40 L)
Tune-up Specifications *
Model 210000, 310000
Spark Plug Gap 0.030 in (0.76 mm)
Spark Plug Torque 180 lb-in (20 Nm)
Armature Air Gap 0.010 - 0.014 in (0.25 - 0.36 mm)
Intake Valve Clearance 0.003 - 0.005 in (0.08 - 0.13 mm)
Exhaust Valve Clearance 0.005 - 0.007 in (0.13 - 0.18 mm)
* Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea leveland
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
Model: 210000
Air Filter, Flat 698413, 5079
Air Filter Pre-cleaner, Flat 697292, 5079
Oil -- SAE 30 (20 oz, 0.6 L) 100005
Oil -- SAE 30 (48 oz, 1.4 L) 100028
Oil Filter 492932, 5049
Fuel Additive 5041, 5058
Fuel Filter -- engine without fuel pump 394358, 5098
Fuel Filter -- engines with fuel pump 691035, 5065
Resistor Spark Plug 491055
Long Life Platinum Spark Plug 5066
Spark Plug Wrench 89838, 5023
Spark Tester 19368
Model: 310000
Air Filter, Flat 698083, 5077
Air Filter Pre-cleaner, Flat 697015, 5077
Air Filter, Flat Washable 697153, 5078
Oil -- SAE 30 (20 oz, 0.6 L) 100005
Oil -- SAE 30 (48 oz, 1.4 L) 100028
Oil Filter 492932, 5049
Fuel Additive 5041, 5058
Fuel Filter -- engine without fuel pump 394358, 5098
Fuel Filter -- engines with fuel pump 691035, 5065
Resistor Spark Plug 491055
Long Life Platinum Spark Plug 5066
Spark Plug Wrench 89838, 5023
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.
