Briggs & Stratton Twin Cylinder L-Head Manuals

Manuals and User Guides for Briggs & Stratton Twin Cylinder L-Head. We have 1 Briggs & Stratton Twin Cylinder L-Head manual available for free PDF download: Repair Manual

Briggs & Stratton Twin Cylinder L-Head Repair Manual (171 pages)

Brand: Briggs & Stratton | Category: Engine | Size: 7.31 MB

Table of Contents

2
- Carburetion
  10
  - In the Interest of Safety
    11
- General Information
  10
Section 2 Ignition

20
Section 3 Carburetion

34
Section 4 Gov. Controls & Governor

56
Section 5 Compression

70
- Compression
  70
- Cylinder Head Removal
  
  71
- General Information
  
  71
- Removing Valves
  
  72
  - Valve Spring Retainers
    73
  - Remove Exhaust Valves
    73
  - Remove Intake Valves
    73
- Valve Guides
  
  74
- Reface Valves and Seats
  
  76
  - Inspect Valve Seats
    77
  - Remove Valve Seat
    78
  - Install Valve Seat
    78
  - Valve Seat Inserts
    78
  - Installing Part #21612 Exhaust Valve Seat Insert
    79
- Check and Adjust Valve Clearance
  
  80
- Install Valves
  
  80
  - Install Intake Valve and Seal
    80
  - Install Exhaust Valve
    81
- Install Cylinder Heads
  
  81
- Install Breathers
  
  81
Section 6A Rewind Starters

82
- Disassembly
  
  83
- Remove Rewind Starter
  
  83
  - Assembly
    83
    
    Install Spring
    83
    
    Wind Spring
    83
    
    Install Rope
    84
    
    Starter Clutch
    85
  - Remove Spring
    83
Section 6B Electric Starters

86
- General Information
  
  87
  - Starter Location
    87
  - Starter Identification
    87
- Troubleshooting
  
  88
- Test Equipment
  
  88
  - Digital Multimeter
    88
  - DC Shunt
    88
  - Tachometer
    89
  - Starter Motor Test Bracket
    89
- Starter Motor
  
  89
- Starter Drive
  
  90
- Starter Motor
  
  94
  - Disassemble Starter Motor
    94
  - Replace Brushes
    95
  - Inspect Armature Commutator
    95
  - Inspect Brushes
    95
- Assemble Starter Motor
  
  96
  - Install Drive End Cap
    97
- Battery Information
  
  98
  - Installation
    98
  - Checking Battery
    99
  - Testing Battery
    99
  - Battery Recommendations
    99
  - Battery Cable Recommendations
    99
- Replace Ring Gear
  
  98
Section 7 Alternators

100
- Alternators
  100
- Alternator Identification
  
  101
- Flywheel Identification
  
  103
- Test Equipment
  
  104
  - Digital Multimeter and DC Shunt
    104
- Alternator Output Testing
  
  105
- DC Only Alternator
  
  105
  - Alternator Output Test
    105
  - Diode Test
    106
- Ac Only Alternator
  
  105
  - AC Output Test
    105
- Dual Circuit Alternator
  
  106
  - Alternator Output Test
    106
  - Diode Test
    107
  - AC Output Test
    107
- Tri-Circuit Alternator
  
  107
  - Alternator Output Test
    108
  - Diode Test
    108
    
    Charging Circuit (Red Wire)
    108
    
    Lighting Circuit (White Wire)
    108
- 5 & 9 Amp Regulated Alternator
  
  109
  - Testing Regulator-Rectifier
    109
- Or 16 Amp Regulated Alternator
  
  109
  - Test Regulator-Rectifier
    109
  - Regulator-Rectifier with Charge Indicator
    111
  - Testing Charge Indicator
    113
- Quad Circuit Alternator
  
  113
  - Alternator Output Test
    113
  - Testing Regulator-Rectifier
    113
  - Test Charging Circuit (+DC)
    113
  - Test Lighting Circuit (-DC)
    114
- Batteries
  
  114
  - Installation
    115
  - Checking Battery
    115
Section 8 Lubrication

116
- Lubrication
  116
- Description
  
  117
  - Change Oil - Splash Lube Engines
    117
  - Change Oil - Pressure Lube Engines
    118
  - Change Oil Filter
    118
- Oil Fill Tube and Dipstick
  
  118
- Crankcase Breather
  
  118
- Splash Lube
  
  122
  - Horizontal Crankshaft Models - Oil Dipper
    122
  - Install Oil Dipper
    122
  - Oil Trough - Model Series 421400, 422400
    123
  - Vertical Crankshaft Models - Oil Slinger
    123
  - Inspect Oil Slinger
    123
- Oil Gard
  
  123
  - Testing Oil Gard
    124
- Pressure Lube
  
  125
- Inspect Oil Pump
  
  126
  - Horizontal Crankshaft Models
    126
  - Vertical Crankshaft Models
    126
  - Oil Pressure Switch (Optional)
    127
  - Testing Oil Pressure
    127
  - Oil Cooler (Optional)
    128
  - Engine Disassembly
    130
Section 10 Cylinders & Bearings

132
- Cylinders & Bearings
  132
- Check Cylinder
  
  133
  - Resizing Cylinders
    133
  - Cleaning
    134
  - Cylinder Finish (Cross Hatch)
    134
- Main Bearings
  
  134
  - Check Plain Bearings
    135
  - Repairing Plain Main Bearings - Mag or PTO
    135
  - Check du Bearings
    136
  - Remove du Bearings - All Models
    136
  - Install du Mag Bearing - All Models
    136
  - Install Oil Seal - Mag Side - All Models
    136
  - Install Oil Seal - PTO - Horizontal Crankshaft Models
    137
  - Install Oil Seal - PTO - Vertical Crankshaft Models
    138
  - Honing Fixture
    139
  - Crankshafts & Camshafts
    140
Section 12 Pistons - Rings - Rods

144
- Pistons - Rings - Rods
  144
- Remove Piston and Connecting Rod
  
  145
- Checking Pistons & Rings
  
  145
  - Check Piston
    145
  - Check Piston Pin and Piston Pin Bore
    146
  - Check Rings
    146
- General Information
  
  145
  - Remove Connecting Rod
    145
    
    Remove Rings
    145
- Assemble Piston & Connecting Rod
  
  147
  - Assemble Rings to Piston
    148
  - Install Piston and Connecting Rod Assembly
    148
  - Torque Connecting Rods
    150
  - Check Connecting Rod
    147
Section 13 Engine Assembly

152
Section 14 Mufflers

164
- Mufflers
  164
- General Information
  
  165
- Remove Muffler
  
  165
- Remove Muffler
  
  166
- Inspect Exhaust System
  
  168
  - All Models
    168
- Assemble Exhaust System
  
  168
- Assemble Exhaust System
  
  169
  - All Non Ducted Engine Models
    169
  - Install Cylinder Air Guides and Shields
    169
  - Install Muffler Adapters
    170
  - Install Large Lo-Tone Mufflers
    170
  - Install Small Lo-Tone Mufflers
    171
- Engine Components
  
  171

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Briggs & Stratton Twin Cylinder L-Head Manuals

Briggs & Stratton Twin Cylinder L-Head Repair Manual (171 pages)

Table of Contents

Table of Contents

Section 2 Ignition

General Information

Armatures

Breaker Points

Flywheel

Stop Switches

Section 3 Carburetion

Carburetor Styles

Remove Carburetor

Intake Manifolds

Inspect Carburetor - All Styles

Carburetor Cleaning Recommendation

Check Throttle, Choke Shaft and Body for Wear

Disassemble Carburetor - All Styles

Replace Fuel Inlet Seat

Assemble Carburetor

Install Carburetor

Install Air Cleaner Assembly

STATIC GOVERNOR ADJUSTMENT (before Running Engine)

Anti-Afterfire System

Inline Fuel Filter Service

Section 4 Gov. Controls & Governor

Mechanical Governor

Control Adjustments

Mechanical Governor

Static Governor Adjustment

Dynamic Governor Adjustment

Section 5 Compression

Cylinder Head Removal

General Information

Removing Valves

Valve Guides

Reface Valves and Seats

Check and Adjust Valve Clearance

Install Valves

Install Cylinder Heads

Install Breathers

Section 6A Rewind Starters

Disassembly

Remove Rewind Starter

Section 6B Electric Starters

General Information

Troubleshooting

Test Equipment

Starter Motor

Starter Drive

Starter Motor

Assemble Starter Motor

Battery Information

Replace Ring Gear

Section 7 Alternators

Alternator Identification

Flywheel Identification

Test Equipment

Alternator Output Testing

DC Only Alternator

Ac Only Alternator

Dual Circuit Alternator

Tri-Circuit Alternator

5 & 9 Amp Regulated Alternator

Or 16 Amp Regulated Alternator

Quad Circuit Alternator

Batteries

Section 8 Lubrication

Description

Oil Fill Tube and Dipstick

Crankcase Breather

Splash Lube

Oil Gard

Pressure Lube

Inspect Oil Pump

Section 10 Cylinders & Bearings

Check Cylinder

Main Bearings

Section 12 Pistons - Rings - Rods

Remove Piston and Connecting Rod