Troubleshooting; Specifications - Briggs & Stratton 120000 Operator's Manual

Storage
WARNING
Fuel and its 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.
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,
Engine Specifications
Model
Displacement
Bore
Stroke
Oil Capacity
Engine Specifications
Model
Displacement
Bore
Stroke
Oil Capacity
Tune-up Specifications *
Model
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 Part
Advanced Formula Fuel Treatment & Stabilizer
Resistor Spark Plug (Models 120000, 150000,
200000, 210000)
Long Life Platinum Spark Plug (Models
120000, 150000)
Long Life Platinum Spark Plug (Models
200000, 210000)
n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts.
en

Specifications

120000
12.48 ci (205 cc)
2.688 in (68.28 mm)
2.200 in (55.88 mm)
18 -- 20 oz (0.54 -- 0.59 L)
150000
15.24 ci (250 cc)
2.970 in (75.44 mm)
2.200 in (55.88 mm)
18 -- 20 oz (0.54 -- 0.59 L)
120000, 150000
0.030 in (0.76 mm)
180 lb-in (20 Nm)
0.010 - 0.014 in (0.25 - 0.36 mm)
0.004 - 0.006 in (0.10 - 0.15 mm)
0.009 - 0.011 in (0.23 - 0.28 mm)
Common Service Parts n
Part Number
100117, 100120
491055
696202, 5066
793541
use Briggs & Stratton Advanced Formula Fuel Treatment & Stabilizer, available
wherever Briggs & Stratton genuine service parts are sold.
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 before storage.
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 (in
USA).
Engine Specifications
Model
Displacement
Bore
Stroke
Oil Capacity
Engine Specifications
Model
Displacement
Bore
Stroke
Oil Capacity
Tune-up Specifications *
Model
Spark Plug Gap
Spark Plug Torque
Armature Air Gap
Intake Valve Clearance
Exhaust Valve Clearance
Service Part
Spark Plug Wrench
Spark Tester
200000
18.63 ci (305 cc)
3.120 in (79.24 mm)
2.438 in (61.93 mm)
26 -- 28 oz (0.77 -- 0.83 L)
210000
20.85 ci (342 cc)
3.300 in (83.81 mm)
2.438 in (61.93 mm)
26 -- 28 oz (0.77 -- 0.83 L)
200000, 210000
0.030 in (0.76 mm)
180 lb-in (20 Nm)
0.010 - 0.014 in (0.25 - 0.36 mm)
0.004 - 0.006 in (0.10 - 0.15 mm)
0.004 - 0.006 in (0.10 - 0.15 mm)
Part Number
89838, 5023
19368
9