TABLE OF CONTENTS
1- DESCRIPTION & OPERATION
FOUR-STROKE ENGINE OPERATION 1-1
COOLING 1-4
ENGINE "BUILD-UP" COMPONENTS 1-4
MODEL NUMBER GUIDE 1-5
ENGINE IDENTIFICATION 1-6
2- TROUBLESHOOTING
PROCEDURES 2-1
ENGINE CHECKOUT 2-2
FLOW CHART INDEX 2-4
Chart #1 Eng. fails to start 2-5
Chart #2 Crankshaft fails to rotate hand starter 2-8
Chart #3 Crankshaft fails to rotate elec. cranking mtr. 2-9
Chart #4 Engine lacks pwr. 2-10
Chart #5 Engine skips or misses 2-13
Chart #6 Engine vibrates 2-15
Chart #7 Engine knocks or is noisy 2-18
Chart #8 Engine overheats 2-23
Chart #9 Engine idles poorly 2-26
Chart #10 -- Engine stalls on acceleration 2-27
Chart #11 Engine surges 2-31
Chart #12 Carburetor requires adjustment 2-35
Chart #13 -- Ignition system inoperative 2-38
3- TUNING
INTRODUCTION 3-1
TUNE-UP SEQUENCE 3-1
SPARK PLUG EVALUATION 3-2
SERVICE AIR CLEANER 3-3
THROTTLE, CHOKE, GOVERNOR LINKAGE 3-4
SERVICE BATTERY 3-6
CLEAN COOLING FINS 3-7
COMPRESSION TEST 3-8
CHECK IGNITION SYSTEM 3-8
SERVICE FUEL SYSTEM 3-9
CARBURETOR FINAL
ADJUSTMENTS 3-10
CHANGE CRANKCASE OIL 3-11
CHECK DRIVEN COMPONENT 3-12
4- FUEL
INTRODUCTION AND CHAPTER COVERAGE 4-1
GENERAL CARBURETOR INFORMATION 4-1
Carburetors with Float 4-1
GASOLINE, "SOUR" FUEL, AND GASOHOL 4-3
FUEL PROBLEMS 4-4
AIR CLEANERS 4-5
SERVICE FLAT CARTRIDGE AIR CLEANER 4-6
Removal 4-6
Installation 4-6
SERVICE OVAL DUAL ELEMENT AIR CLEANER 4-7
Removal 4-7
Cleaning & Inspecting 4-8
Installation 4-8
SERVICE RECTANGULAR DUAL ELEMENT AIR CLEANER 4-10
Removal 4-10
Installation 4-10
CARBURETOR SERVICE INFORMATION 4-10
SERVICE FLO-JET -- ONE-PIECE SIDE DRAFT CARB.URETOR
Removal & Disassembling 4-11
Cleaning & Inspecting 4-15
Assembling & Installation 4-16
CARBURETOR ADJUSTMENT OHV ENGINES 4-22
THROTTLE CONTROLS, CHOKE AND GOVERNOR LINKAGE 4-23
MECHANICAL GOVERNOR 4-26
Static Adjustment 4-27
5- IGNITION
INTRODUCTION AND CHAPTER COVERAGE 5-1
SPARK PLUG EVALUATION 5-1
SERVICE MAGNETRONS 5-4
Removal 5-5
Disassembling 5-6
Cleaning & Inspecting 5-6
Assembling 5-6
Installation 5-6
Air Gap Table 5-7
6- ENGINE BLOCK
INTRODUCTION AND CHAPTER COVERAGE 6-1
DISASSEMBLING 6-2
Preparation 6-2
Valves, Valve Retainers, Rocker Arm & Push Rods 6-3
Cylinder Head 6-4
Flywheel 6-5
Oil Pump 6-7
Crankcase Cover 6-8
Camshaft 6-11
Connecting Rod & Piston 6-11
Piston Disassembly 6-12
Crankshaft & Cam Gear 6-13
CLEANING & INSPECTING Breather Valve 6-15
Valves, Springs, & Seats 6-16
Oil Pumps, Stingers & Dippers 6-19
Piston, Rings, & Rod 6-21
Crankshaft Service 6-24
Cylinder Service 6-26
Magneto & PTO Bearings 6-28
Flywheel Service 6-29
ASSEMBLING Crankshaft 6-30
Piston & Connecting Rod 6-30
Camshaft & Gear 6-34
Oil Pump 6-38
Breather 6-39
Flywheel 6-41
Valves 6-42
Cylinder Head 6-43
Muffler & Exhaust Pipe 6-45
Rocker Arm & Push Rod 6-45
Valve Cover 6-46
7- ELECTRICAL
INTRODUCTION 7-1
BATTERIES 7-1
Nickel Cadmium 7-1
Dry Storage-Type 7-2
Lead Acid-Wet Cell 7-2
Gel Cell 7-5
JUMPER CABLES 7-5
ALTERNATORS 7-6
Simple Testing 7-6
Detailed Testing 7-7
CRANKING MOTOR CIRCUIT 7-12
CRANKING MOTOR TROUBLESHOOTING 7-13
CRANKING MOTOR SERVICE 7-13
Removal & Disassembly 7-14
Cleaning & Inspecting 7-15
Testing Components 7-16
Assembling 7-17
8- HAND REWIND STARTER
INTRODUCTION AND CHAPTER COVERAGE 8-1
SERVICE TYPE "A" – TOP MOUNT -- HORIZONTAL PULL 8-2
Removal & Disassembling 8-2
Cleaning & Inspecting 8-4
Assembling & Installation 8-5
SERVICE TYPE "B" -- TOP OR SIDE MOUNT 8-7
Removal & Disassembling 8-7
Cleaning & Inspecting 8-7
Assembling & Installation 8-7
ROPE REPLACEMENT 8-9
FLYWHEEL BRAKE 8-12
Removal 8-12
Inspection 8-13
Assembling & Installation 8-14
Brake Shoe Test 8-16
9- MAINTENANCE
INTRODUCTION 9-1
PERIODIC MAINTENANCE 9-1
MAINTENANCE SCHEDULE 9-2
CRANKCASE LUBRICATION 9-3
AIR CLEANER 9-6
BREATHERS 9-7
IGNITION SYSTEM 9-8
VALVE CLEARANCE CHECK AND ADJUSTMENT 9-10
PREPARATION FOR STORAGE 9-11
10- COUNTERBALANCE
DESCRIPTION 10-1
SERVICE OSCILLATING COUNTERBALANCE 10-1
Preparation 10-2
Removal l0-2
Disassembling 10-2
Inspection 10-3
Assembling & Installation 10-3
SERVICE ROTATING COUNTERBALANCE 10-4
Preparation 10-4
Removal 10-4
Inspection 10-4
Installation 10-4
APPENDIX
METRIC CONVERSION CHART A-1
DRILL SIZE CONVERSION CHART A-2
BRIGGS & STRATTON MODEL NUMBER GUIDE A-3
CONVERSION CHART – MODEL NUMBER/HORSEPOWER A-4
ALTERNATORS A-5
VALVE TAPPET CLEARANCE A-5
CAMSHAFT REJECT SIZES A-5
IDLE SPEED TABLE A-6
ENGINE OIL CAPACITY A-6
ARMATURE AIR GAP A-6
CYLINDER BORE STD. DIA. A-6
CRANKCASE BEARING REJECT A-6
PISTON PIN REJECT A-7
CRANKSHAFT REJECT A-7
RING END GAP REJECT A-7
CONNECTING ROD REJECT A-7
FLYWHEEL NUT TORQUE VALUE A-8
CRANKCASE COVER BOLT TORQUE VALUE A-8
CONNECTING ROD BOLT TORQUE VALUE A-8
CYLINDER HEAD BOLT TORQUE VALUE A-8
- ISBN10 0963766120
- ISBN13 9780963766120
- Publish Date 31 January 2000
- Publish Status Out of Print
- Out of Print 4 August 2016
- Publish Country US
- Imprint Chilton Book Company
- Format Paperback
- Pages 350
- Language English