Specifications - Briggs & Stratton 120000 Operator's Manual

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
Fuel Additive
Resistor Spark Plug
Long Life Platinum Spark Plug
n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. Use only genu-
ine Briggs & Stratton parts.
Engine Power Rating Information
The gross power rating for individual gas engine models is labeled in ac-
cordance with SAE (Society of Automotive Engineers) code J1940 (Small
Engine Power & Torque Rating Procedure), and rating performance has
been obtained and corrected in accordance with SAE J1995 (Revision
2002-05). Torque values are derived at 3060 RPM; horsepower values are
derived at 3600 RPM. Actual gross engine power will be lower and is af-
fected by, among other things, ambient operating conditions and engine-to-
engine variability. Given both the wide array of products on which engines
are placed and the variety of environmental issues applicable to operating
en
120000
12.48 ci (206 cc)
2.677 in (68 mm)
2.205 in (56 mm)
18 -- 20 oz (0.54 -- 0.59 L)
150000
15.22 ci (249 cc)
2.970 in (75.44 mm)
2.205 in (56 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
5041, 5058
491055
5066
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
the equipment, the gas engine will not develop the rated gross power when
used in a given piece of power equipment (actual "on-site" or net power).
This difference is due to a variety of factors including, but not limited to,
accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel pump,
etc.), application limitations, ambient operating conditions (temperature,
humidity, altitude), and engine-to-engine variability. Due to manufacturing
and capacity limitations, Briggs & Stratton may substitute an engine of
higher rated power for this Series engine.

Specifications

200000
18.64 ci (305 cc)
3.120 in (79.23 mm)
2.438 in (61.67 mm)
26 -- 28 oz (0.77 -- 0.83 L)
210000
20.85 ci (342 cc)
3.300 in (83.82 mm)
2.438 in (61.67 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)
0.009 - 0.011 in
(0.23 - 0.28 mm)
Part Number
89838, 5023
19368
21