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Manufacturer | Honda |
---|---|
Production | 1973–1985 |
Engine | 122–124 cc (7.4–7.6 cu in) air-cooled4-strokeOHC 2-valve single-engine, wet sump |
Bore / stroke | 56 by 50 millimetres (2.21 in × 1.95 in) 1973-1975 |
Ignition type | Kick start Capacitive discharge from 1980 onwards |
Transmission | 5-speedmanual, chain drive |
Brakes | Drum |
Fuel capacity | 8.7 l; 1.9 imp gal (2.3 US gal) |
The Honda CB125 is a 122 cc (7.4 cu in) motorcycle made by Honda from 1971–1985 (1973–1985 in the US). It had an single cylinder overhead camshaft (OHC) engine with a 9500 rpm redline. The 'S' model was produced from 1971 to 1975 and was replaced in 1976 by the 'J' model (the US bikes retained the S designation). The newer model sported a two piece head, 124 cc (7.6 cu in) displacement, and a larger carburetor.[1][2]
Major changes[edit]
Aside from different color schemes and minor lettering differences, these are some of the major design changes:
- 1973 - First year the bike was released in the US as CB125S0. UK model CB125S with tachometer and exhaust with trumpet end.
- 1974 - Front drum brake changed to disk, tachometer was added.
- 1976 - Engine displacement increased from 122 to 124 cc (7.4 to 7.6 cu in), tachometer was eliminated.
- 1979 - Front disk brake was changed back to drum.
- 1980 - Point ignition was changed to capacitive discharge.
- 1983 - The bike was produced but not released for customers this year.
- 1984 - The electrical system was changed from 6 to 12 volts.
- 1985 - The last year the bike was released in the US, headlight shape was changed from round to rectangular.
US model year changes[edit]
Identifications, specifications, and changes throughout the years. This chart is for units sold In America only.[1]
Ignition | Displacement | Front brake | Rear brake | Instruments | Notes | |
---|---|---|---|---|---|---|
1973 | Breaker points | 122 cc | Drum | Drum | Speedometer (only) | 6v electrical system (73-83) |
1974 | Breaker points | 122 cc | Mechanical disc | Drum | Speedometer and Tachometer | |
1975 | Breaker points | 122 cc | Mechanical disc | Drum | Speedometer and Tachometer | |
1976 | Breaker points | 124 cc | Mechanical disc | Drum | Speedometer (only) Praetorians game mod. | |
1977 | ||||||
1978 | Breaker points | 124 cc | Mechanical disc | Drum | Speedometer (only) | |
1979 | Breaker points | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | |
1980 | Breaker points | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | |
1981 | Capacitive Discharge | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | |
1982 | Capacitive Discharge | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | |
1983 | Not produced | |||||
1984 | Capacitive Discharge | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | 12v Electrical system Disgaea 5 save editor. (84-85) |
1985 | Capacitive discharge | 124 cc | Single leading shoe Front brake | Drum | Speedometer (only) | Rectangular headlight |
This table explains the specific changes year to year.
The components of the CB125 did not change much throughout the years unlike the appearance of the CB125. The majority of the changes made upon the bike was the color of the fuel tank, and the color of the decals. The color and Decals changed every year the Cb125 was produced.
Notes[edit]
- ^ abHonda Motorcycle Identification Guide. American Honda Motor Co., Inc. 2000. pp. 30–50. ISBN0-964249-1-1-1.
- ^Scott, Ed (1983). Clymer Honda 100-350cc OHC singles 1969-1982 service-repair-performance. U.S.A.: Jeff Robinson. pp. 0–102. ISBN978-0-89287-184-1.
Honda motorcycle timeline, 1970s (street) - next » | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Type | 1970s | ||||||||||||||||||||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||||||||||||
Scrambler | CL175 | CL200 | |||||||||||||||||||
CL350 | CL360 | ||||||||||||||||||||
CL450 | |||||||||||||||||||||
Standard | CB100 | ||||||||||||||||||||
CB125S | |||||||||||||||||||||
CB175 | CB200 | CM185 Twinstar | |||||||||||||||||||
CB250 | |||||||||||||||||||||
CB350 | CB360 | CB400T | |||||||||||||||||||
CM400 | |||||||||||||||||||||
CB350F | CB400F | ||||||||||||||||||||
CB450 | CB500T | ||||||||||||||||||||
CB500 Four | CB550 | CB650 | |||||||||||||||||||
CX500 | |||||||||||||||||||||
CB750 | |||||||||||||||||||||
Sport | CB900F | ||||||||||||||||||||
CBX | |||||||||||||||||||||
Touring | GL1000 Gold Wing | ||||||||||||||||||||
MotoGP |
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Honda_CB125&oldid=976914460'
Complete coverage for your vehicle
Written from hands-on experience gained from the complete strip-down and rebuild of a Honda Motorcycle CB125S, Clymer can help you understand, care for and repair your Honda Motorcycle CB125S. We do it ourselves to help you do-it-yourself, and whatever your mechanical ability, the practical step-by-step explanations, linked to over 900 photos, will help you get the job done right. Regular servicing and maintenance of your Honda Motorcycle CB125S can help maintain its resale value, save you money, and make it safer to ride.
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What's covered
Honda CB100 (1970-1972)
Honda CB125S (1973-1982)
Honda CL100 (1970-1972)
Honda CL100S (1971-1973)
Honda CT125 (1977)
Honda SL100 (1969-1973)
Honda SL125 (1971-1973)
Honda TL125 (1973-1975)
Honda TL125S (1976)
Honda TL250 (1975-1976)
Honda XL100 (1974-1978)
Honda XL125 (1974-1978)
Honda XL175 (1973-1978)
Honda XL250 (1972-1976)
Honda XL350 (1974-1978)
Honda CB125S (1973-1982)
Honda CL100 (1970-1972)
Honda CL100S (1971-1973)
Honda CT125 (1977)
Honda SL100 (1969-1973)
Honda SL125 (1971-1973)
Honda TL125 (1973-1975)
Honda TL125S (1976)
Honda TL250 (1975-1976)
Honda XL100 (1974-1978)
Honda XL125 (1974-1978)
Honda XL175 (1973-1978)
Honda XL250 (1972-1976)
Honda XL350 (1974-1978)
Table of contents
This Honda Vintage Motorcycle Manual is 368 pages.
QUICK REFERENCE DATA
CHAPTER ONE / GENERAL INFORMATION
Manual organization / Service hints / Torque specifications / Safety first / Special tips / Parts replacement / Expendable supplies / Serial numbers / Tune-up and troubleshooting tools
Manual organization / Service hints / Torque specifications / Safety first / Special tips / Parts replacement / Expendable supplies / Serial numbers / Tune-up and troubleshooting tools
Honda Cb125s 1975 Owners Manual Free
CHAPTER TWO / TROUBLESHOOTING
Operating requirements / Troubleshooting instruments / Emergency troubleshooting / Engine starting / Engine performance / Excessive vibration / Front suspension and steering / Brake problems
Operating requirements / Troubleshooting instruments / Emergency troubleshooting / Engine starting / Engine performance / Excessive vibration / Front suspension and steering / Brake problems
CHAPTER THREE / LUBRICATION, MAINTENANCE AND TUNE-UP
Routine checks / Service intervals / Tires and wheels / Crankcase breather hose / Battery / Periodic lubrication / Engine oil change / Oil filter screen cleaning / Front fork oil change / Periodic maintenance / Drive chain adjustment/ Front brake lever adjustment / Rear brake pedal adjustment / Clutch adjustment / Air filter service / Fuel shutoff valve and filter service / Engine tune-up / Camshaft chain tensioner adjustment / Valve clearance adjustment / Spark plugs / Contact breaker point adjustment / Static ignition timing adjustment / Dynamic ignition timing adjustment / Idle speed adjustment / Specifications
Routine checks / Service intervals / Tires and wheels / Crankcase breather hose / Battery / Periodic lubrication / Engine oil change / Oil filter screen cleaning / Front fork oil change / Periodic maintenance / Drive chain adjustment/ Front brake lever adjustment / Rear brake pedal adjustment / Clutch adjustment / Air filter service / Fuel shutoff valve and filter service / Engine tune-up / Camshaft chain tensioner adjustment / Valve clearance adjustment / Spark plugs / Contact breaker point adjustment / Static ignition timing adjustment / Dynamic ignition timing adjustment / Idle speed adjustment / Specifications
1975 Honda Cb125s Owners Manual
CHAPTER FOUR / 100 AND 125 CC ENGINES
Engine principles / Engine cooling / Servicing engine in frame / Engine removal/installation / Camshaft / Cylinder head / Cylinder head cover and camshaft / Camshaft chain / Valves and valve components / Cylinder / Piston, piston pin and piston rings / Oil pump / Crankcase and crankshaft / Camshaft chain and tensioner / Kickstarter / Break-in procedure / Specifications
Engine principles / Engine cooling / Servicing engine in frame / Engine removal/installation / Camshaft / Cylinder head / Cylinder head cover and camshaft / Camshaft chain / Valves and valve components / Cylinder / Piston, piston pin and piston rings / Oil pump / Crankcase and crankshaft / Camshaft chain and tensioner / Kickstarter / Break-in procedure / Specifications
CHAPTER FIVE / 175, 250 AND 350 CC ENGINES
Engine principles / Engine cooling / Servicing in frame / Engine removal/installation / Cylinder head cover and camshaft / Camshaft chain / Cylinder head / Valves and valve components / Cylinder / Piston, piston pin and piston rings / Oil pump / Crankcase and crankshaft / Camshaft chain and tensioner / Kickstarter / Break-in procedure / Specifications
Engine principles / Engine cooling / Servicing in frame / Engine removal/installation / Cylinder head cover and camshaft / Camshaft chain / Cylinder head / Valves and valve components / Cylinder / Piston, piston pin and piston rings / Oil pump / Crankcase and crankshaft / Camshaft chain and tensioner / Kickstarter / Break-in procedure / Specifications
Propellerhead rebirth torrent. CHAPTER SIX / CLUTCH AND TRANSMISSION
Clutch operation / Clutch / Clutch inspection / Clutch cable / External shift mechanism / Drive sprocket / Transmission and internal shift mechanism / 5-speed transmission and internal shift mechanism / Specifications
Clutch operation / Clutch / Clutch inspection / Clutch cable / External shift mechanism / Drive sprocket / Transmission and internal shift mechanism / 5-speed transmission and internal shift mechanism / Specifications
CHAPTER SEVEN / FUEL AND EXHAUST SYSTEMS
Air cleaner / Carburetor operation / Carburetor service / Carburetor adjustments / Throttle cable / Fuel tank / Fuel filter / Crankcase breather system / Exhaust system / Specifications
Air cleaner / Carburetor operation / Carburetor service / Carburetor adjustments / Throttle cable / Fuel tank / Fuel filter / Crankcase breather system / Exhaust system / Specifications
CHAPTER EIGHT / ELECTRICAL SYSTEM
Charging system / Rectifier / Voltage regulator/rectifier / Alternator / Breaker point ignition / Capacitor discharge ignition / Ignition coil / Ignition pulse generator / Ignition advance mechanism / Lighting system / Switches / Specifications
Charging system / Rectifier / Voltage regulator/rectifier / Alternator / Breaker point ignition / Capacitor discharge ignition / Ignition coil / Ignition pulse generator / Ignition advance mechanism / Lighting system / Switches / Specifications
CHAPTER NINE / FRONT SUSPENSION AND STEERING
Front wheel / Front hub / Wheels / Tire changing / Tire repairs / Handlebar / Steering head / Front fork / Specifications
Front wheel / Front hub / Wheels / Tire changing / Tire repairs / Handlebar / Steering head / Front fork / Specifications
CHAPTER TEN / REAR SUSPENSION
Rear wheel / Rear hub and driven sprocket / Drive chain / Drive chain case / Swing arm / Specifications
Rear wheel / Rear hub and driven sprocket / Drive chain / Drive chain case / Swing arm / Specifications
CHAPTER ELEVEN / BRAKES
Drum brakes / Front brake cable / Front disc brake / Brake pad replacement / Brake caliper body / Specifications
Drum brakes / Front brake cable / Front disc brake / Brake pad replacement / Brake caliper body / Specifications
![Download Download](https://images-na.ssl-images-amazon.com/images/I/51NjAO8TQQL._AC_SY355_.jpg)
INDEX
COLOR WIRING DIAGRAMS
Models covered:
1970 1971 1972 HONDA CB100
1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 HONDA CB125S
1970 1971 1972 HONDA CL100
1971 1972 1973 CL100S
1977 HONDA CT125
1969 1970 1971 1972 1973 HONDA SL100
1971 1972 1973 HONDA SL125
1973 1974 1975 HONDA TL125
1976 TL125S
1975 1976 HONDA TL250
1974 1975 1976 1977 1978 HONDA XL100
1974 1975 1976 1977 1978 HONDA XL125 1973 1947 1975 1976 1977 1978 HONDA XL175
1972 1973 1974 1975 1976 HONDA XL250
1974 1975 1976 1977 1978 HONDA XL350
1970 1971 1972 HONDA CB100
1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 HONDA CB125S
1970 1971 1972 HONDA CL100
1971 1972 1973 CL100S
1977 HONDA CT125
1969 1970 1971 1972 1973 HONDA SL100
1971 1972 1973 HONDA SL125
1973 1974 1975 HONDA TL125
1976 TL125S
1975 1976 HONDA TL250
1974 1975 1976 1977 1978 HONDA XL100
1974 1975 1976 1977 1978 HONDA XL125 1973 1947 1975 1976 1977 1978 HONDA XL175
1972 1973 1974 1975 1976 HONDA XL250
1974 1975 1976 1977 1978 HONDA XL350
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CB100 (1970-1972)
CB125S (1973-1982)
CL100 (1970-1972)
CL100S (1971-1973)
CT125 (1977)
SL100 (1969-1973)
SL125 (1971-1973)
TL125 (1973-1975)
TL125S (1976)
TL250 (1975-1976)
XL100 (1974-1978)
XL125 (1974-1978)
XL175 (1973-1978)
XL250 (1972-1976)
XL350 (1974-1978)
CB125S (1973-1982)
CL100 (1970-1972)
CL100S (1971-1973)
CT125 (1977)
SL100 (1969-1973)
SL125 (1971-1973)
TL125 (1973-1975)
TL125S (1976)
TL250 (1975-1976)
XL100 (1974-1978)
XL125 (1974-1978)
XL175 (1973-1978)
XL250 (1972-1976)
XL350 (1974-1978)
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