GENERAL INFORMATION
Overhaul Procedure
OVERHAUL PROCEDURE
The Overhaul Procedure which follows is intended to help you to become accustomed to a systematic method of repairing
Briggs & Stratton engines. Naturally these steps could be rearranged in different order but efficiency is obtained when the
repair operations are performed in the same sequence every time. The exact procedure will vary according to the engine
model being repaired.
The Overhaul Procedure can also be used as an index. For information on how to perform most operations listed, refer to
the page number or operation. Be careful to locate the instructions covering the specific model being repaired.
SECTION PAGE NO.
DISASSEMBLY
SECTION PAGE NO.
DISASSEMBLY (Continued)
8
1
Drain oil
3
1
Air cleaner and stud
Fuel pipe and tank assembly
Air cleaner elbow or pipe
Carburetor and linkage
Carburetor intake elbow
Muffler
3
18 & 5
Check space between upper
and lower carburetor body
or carburetor to tank fit
3
18
Check throttle shaft and
bushings for wear
Disassemble carburetor
7
8 to 40
Electric starter (110 V) (12 V)
Blower housing
6
1
Spin flywheel to check
compression
2
1
Spark plug-adjust gap (.030")
and clean and wash
Fuel tank and bracket
assembly or carburetor
2
3
Rope starter pulley
Blower housing
2
6
Check air gap-armature to
flywheel
5
1
Governor blade
8
3
Breather or valve cover
6
1
Cylinder head and shield
6
3
Check tappet clearance
6
2 & 3
Valve and springs
2
3
Rope starter pulley or recoil
starter clutch
2
3 & 8
Flywheel
2
6
Breaker point cover
2
2 & 5
Check breaker point gap
2
4
Check breaker point plunger
hole
2
4 & 7
Test condenser and remove
if necessary
4
2
6
Test coil and remove if
necessary
2
5
Breaker arm assembly and
condenser
2
8 & 13
Breaker box
2
13
Breaker shaft
10
4 & 5
Check end play
10
1
Remove burrs from crankshaft
extension
10
1
Crankcase cover, base or
sump
10
7
Auxiliary drive
11
6
Damage seals
5
1 to 7
Mechanical governor parts
8
4
Inspect oil slinger
10
2
Cam gear
Tappets
9
1
Connecting rod and piston
10
2
Crankshaft- inspect and
check
2
12
Armature assembly and back
plate
2
11 & 12
Rotor
2
6, 8,
Test coil or armature-
12 & 13
check leads
11
3
Crankcase cover or sump
10
2
Crankshaft- inspect & check
10
2
Cam shaft and gear
10
2
Check automatic spark
advance
Tappets
11
1
Cylinder-check bore, main
bearing, valve guides and
seats, cylinder bore
9
1
Disassemble connecting rod
and piston
9
2 & 3
Check piston, rings,
connecting rod, piston pin
1