Yamaha AT1 Series (1968 - 1970)

This Yamaha Vintage Motorcycle Manual is 168 pages.

QUICK REFERENCE DATA

CHAPTER ONE / GENERAL INFORMATION
Manual organization / Service hints / Safety first / Tools / Expendable supplies / Mechanic's tips

CHAPTER TWO / PERIODIC MAINTENANCE
Engine tune-up / Spark plug / Compression test / Carbon removal / Breaker pints / Magneto ignition timing / Air cleaner service / Fuel strainer / Carburetor adjustment / Autolube pump adjustment / Battery service / Oil change / Clutch adjustment / Drive chain / Brakes

CHAPTER THREE / ENGINE, TRANSMISSION AND CLUTCH
Two-stroke operating principles / Engine lubrication / Preparation for engine disassembly / Engine removal / Cylinder and cylinder head / Piston, pin and rings / Reed valve / Flywheel magneto and starter/generator / Engine sprocket / Right crankcase cover / Clutch / Primary drive gear / Kickstarter / Tachometer drive gear / Shifter / Crankcase / Transmission / Crankshaft

CHAPTER FOUR / CARBURETORS
Carburetor operation / Carburetor overhaul / Carburetor adjustment / Miscellaneous problems

CHAPTER FIVE / ELECTRICAL SYSTEM
Flywheel magneto operation / Magneto troubleshooting / Capacitor discharge ignition (CDI) / Starter/generator / Lights / Horn / Main switch / Battery

CHAPTER SIX / CHASSIS SERVICE
Wheels / Brakes / Front fork / Steering head / Rear suspension / Drive chain

CHAPTER SEVEN / TROUBLESHOOTING
Operating requirements / Starting difficulties / Poor idling / Misfiring / Flat spots / Power loss / Overheating / Backfiring / Engine noises / Piston seizure / Excessive vibration / Clutch slip or drag / Poor handling / Brake problems / Lighting problems / Troubleshooting guide

APPENDIX / SPECIFICATIONS

INDEX

Wiring diagrams

Models covered:
1968 1969 1970 Yamaha AT1 Series
1972 Yamaha AT2 SERIES
1973 Yamaha AT3
1973 Yamaha ATMX
1969 1970 1971 1972 Yamaha CT1 Series
1972 Yamaha CT2
1973 Yamaha CT3
1974 1975 1976 Yamaha DT100
1974 1975 1976 Yamaha DT125
1974 1975 1976 Yamaha DT175
1973 Yamaha GT1
1974 1975 1976 Yamaha GT80A
1974 1975 1976 1977 Yamaha GT80MXA
1973 1974 Yamaha GTMX
1974 1975 Yamaha MX100
1974 1975 1976 Yamaha MX125
1974 1975 Yamaha MX175
1976 Yamaha YZ100
1974 19751976 Yamaha YZ125
1974 1975 1976 Yamaha YZ80

Clymer Manuals Yamaha AT1 Series Manual
Clymer Manuals Yamaha AT2 Series Manual
Clymer Manuals Yamaha AT3 Manual
Clymer Manuals Yamaha ATMX Manual
Clymer Manuals Yamaha CT1 Series Manual
Clymer Manuals Yamaha CT2 Manual
Clymer Manuals Yamaha CT3 Manual
Clymer Manuals Yamaha DT100 Manual
Clymer Manuals Yamaha DT125 Manual
Clymer Manuals Yamaha DT175 Manual
Clymer Manuals Yamaha GT1 Manual
Clymer Manuals Yamaha GT80A Manual
Clymer Manuals Yamaha GT80MXA Manual
Clymer Manuals Yamaha GTMX Manual
Clymer Manuals Yamaha MX100 Manual
Clymer Manuals Yamaha MX125 Manual
Clymer Manuals Yamaha MX175 Manual
Clymer Manuals Yamaha YZ100 Manual
Clymer Manuals Yamaha YZ125 Manual
Clymer Manuals Yamaha YZ80 Manual

GT1 (1973)
GTMX (1973-1974)
GT80A (1974-1976)
GT80MXA (1974-1977)
YZ80 (1974-1976)
YZ100 (1976)
DT100 (1974-1976)
MX100 (1974-1975)
AT1 Series (1968-1970)
AT2 Series (1972)
AT3 (1973)
ATMX (1973)
DT125 (1974-1976)
MX125 (1974-1976)
YZ125 (1974-1976)
CT1 Series (1969-1972)
CT2 (1972)
CT3 (1973)
DT175 (1974-1976)
MX175 (1974-1975)