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.
