Specifications; Troubleshooting - Briggs & Stratton 550 Series 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 light or other ignition source 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,
use Briggs & Stratton FRESH START
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 for 2 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 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.
en
®
fuel stabilizer, available as a liquid additive or a

Specifications

Engine Specifications
Model
Displacement
Bore
Stroke
Engine Oil Capacity
Gear Reduction Specifications (if equipped)
Gear Reduction Oil Type
Gear Reduction 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.
Common Service Parts n
Service Part
Standard Air Filter
High Capacity Air Filter
Fuel Additive
Spark Plug
Spark Plug Wrench
Spark Tester
n We recommend that you see any Briggs & Stratton Authorized Dealer for all
maintenance and service of the engine and engine parts.
83100
7.74 ci (127 cc)
2.441 in (62 mm)
1.654 in (42 mm)
18 -- 20 oz (0.54 -- 0.59 L)
80W-90
4 oz (0.12 L)
83100
0.030 in (0.76 mm)
180 lb-in (20 Nm)
0.006 - 0.010 in (0.15 - 0.25 mm)
0.005 - 0.007 in (0.13 - 0.18 mm)
0.005 - 0.007 in (0.13 - 0.18 mm)
Part Number
797258
796970
5041, 5058
797235
89838, 5023
19368
9