9
en
Specifications
Engine Specifications
Model
310000
Displacement
30.52 ci (500 cc)
Bore
3.563 in (90.49 mm)
Stroke
3.062 in (77.77 mm)
Oil Capacity
46 -- 48 oz (1.36 -- 1.40 L)
Engine Specifications
Model
330000
Displacement
32.93 ci (540 cc)
Bore
3.701 in (93.99 mm)
Stroke
3.062 in (77.77 mm)
Oil Capacity
46 -- 48 oz (1.36 -- 1.40 L)
Tune-up Specifications *
Model
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)
Tune-up Specifications *
Model
330000
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 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, Oval
793569
Air Filter Pre-cleaner, Oval
793685
Oil -- SAE 30
100028
Oil Filter
696854
Fuel Filter
394358S
Service Part
Part Number
Fuel Additive
5041, 5058
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.