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Details on the physical measurements and weight of the CG125 model.
Crucial safety advice for vehicle operation and maintenance, covering various hazards.
Overview of the importance and schedule of periodic maintenance tasks.
Essential checks to perform before operating the motorcycle daily.
Procedure for inspecting tyre pressure and wear limits for safety.
Ensuring the machine's safety features and legal requirements are met.
Scheduled maintenance tasks to be performed monthly or every 600 miles.
Inspection and adjustment of spark plug and valve clearances.
Procedures for checking and adjusting the contact breaker and ignition timing.
Detailed checks on contact breaker points and ignition timing accuracy.
Routine checks on controls, lubrication points, and the fuel system.
Instructions for adjusting the clutch and brake systems for optimal performance.
Inspection of wheels, suspension, and steering for proper function and alignment.
Major maintenance tasks to be performed annually or every 7200 miles.
Summary table of key maintenance intervals and specifications.
List of recommended lubricants for various motorcycle components.
Technical specifications for the engine, clutch, and gearbox components.
Overview of the engine unit's construction and lubrication system.
Procedures for operations performed with the engine mounted in the frame.
Steps for removing the engine unit and its associated components from the frame.
Initial steps and precautions for dismantling the engine and gearbox unit.
Detailed instructions for removing the cylinder head, barrel, and piston assembly.
Procedure for removing the generator assembly from the engine.
Steps for removing the cam gear and shaft from the engine.
Instructions for removing the centrifugal oil filter unit.
Procedure for removing the clutch assembly and crankshaft pinion.
Steps for removing the gearchange shaft and its associated mechanism.
Procedure for removing the end float plunger and neutral switch.
Instructions for dismantling the engine by separating the crankcase halves.
Steps for removing kick start mechanism, crankshaft, and gearbox parts.
Procedure for removing the crankshaft and gearbox main bearings.
Inspection of big-end and main bearings for wear and damage.
Checking the gudgeon pin, small end, and piston bosses for wear.
Procedure for examining the piston and piston rings for wear and damage.
Inspection and renovation of the cylinder barrel for wear and damage.
Procedure for removing, examining, and renovating cylinder head valves.
Inspection of cam gear, lobe, and followers for wear.
Procedure for examining the trochoidal oil pump for wear.
Inspection of clutch and primary drive components for wear.
Examination of gearbox components for damage and wear.
Inspection and repair procedures for engine casings and covers.
Guidelines for the general reassembly of the engine unit.
Procedure for reassembling gear clusters and the selector mechanism.
Steps for reassembling the crankcase components during engine rebuild.
Procedure for preparing and joining the crankcase halves.
Instructions for replacing the crankshaft pinion, oil pump, and gearchange mechanism.
Procedure for replacing the clutch assembly and centrifugal oil filter.
Steps for refitting the piston, cylinder barrel, cylinder head, and rocker arms.
Procedure for reinstalling the engine/gearbox unit into the motorcycle frame.
Instructions for starting and running the engine after rebuilding.
Troubleshooting guide for common engine starting and running issues.
Troubleshooting guide for common clutch problems.
Troubleshooting guide for common gearbox issues.
Technical specifications for the fuel system and lubrication components.
Overview of the fuel delivery and lubrication systems.
Procedure for removing and refitting the petrol tank.
Inspection of the petrol feed pipe for condition and leaks.
Instructions for removing and repairing or replacing the petrol tap.
Procedure for removing the carburettor on pre-(T)PFC models.
Instructions for overhauling the carburettor on pre-(T)PFC models.
Procedure for adjusting the carburettor on pre-(T)PFC models.
Specifications for carburettor settings based on engine speed.
Details on the (T)PFC carburettor used on CG125-C, E, and Brazilian models.
Procedure for removing, cleaning, and replacing the air cleaner element.
Basic maintenance for the exhaust system.
Steps for removing, examining, and renovating the oil pump.
Information on locating and cleaning the engine's oil filters.
Troubleshooting guide for common fuel system and lubrication issues.
Technical specifications related to the ignition system.
Overview of how the ignition system generates the spark.
Procedure for adjusting the contact breaker points.
Steps for removing and replacing the contact breaker assembly.
Method for checking and setting the ignition timing.
Procedure for checking the ignition coil's functionality.
Troubleshooting guide for common ignition system problems.
Technical specifications for the frame and fork components.
Overview of the frame structure and suspension system.
General procedures for removing the front forks from the frame.
Steps for detaching the complete front fork assembly from the frame.
Inspection and renovation of the steering head bearings.
Procedure for examining the fork yokes for damage.
Steps for dismantling, examining, and renovating CG125 model fork legs.
Procedure for dismantling, examining, and renovating fork legs on specific CG125 models.
Instructions for reinstalling the front forks into the motorcycle frame.
Inspection and renovation of the motorcycle frame assembly.
Procedure for checking and renovating the swinging arm.
Steps for removing, examining, and renovating the rear suspension units.
Inspection of the centre stand for proper function.
Procedure for examining the footrests for wear or damage.
Inspection and renovation of the rear brake pedal.
Troubleshooting guide for common frame and fork issues.
Technical specifications for wheels, brakes, and tyres.
Overview of the motorcycle's wheels, brake system, and tyres.
Procedure for examining and renovating the front wheel assembly.
Steps for removing the front wheel from the motorcycle.
Procedure for examining and renovating the front brake components.
Instructions for adjusting the front brake for optimal performance.
Procedure for removing and replacing the front wheel bearings.
Steps for replacing the front wheel assembly.
Procedure for examining the rear wheel for defects.
Steps for removing the rear wheel from the motorcycle.
Procedure for examining and renovating the rear brake components.
Procedure for replacing the rear wheel bearings.
Inspection of the rear sprocket and shock absorber rubbers.
Instructions for adjusting the rear brake for proper operation.
Procedures for examining, adjusting, and lubricating the final drive chain.
Steps for replacing the rear wheel assembly.
Procedure for removing and replacing motorcycle tyres.
Troubleshooting guide for common issues with wheels, brakes, and tyres.
Technical specifications for the electrical system components.
Overview of the motorcycle's electrical system and power sources.
General procedures for inspecting the motorcycle's electrical system.
Procedure for testing the charging system's output.
Steps for checking the rectifier unit for malfunctions.
Procedure for charging and maintaining the motorcycle's battery.
Instructions for replacing headlamp bulbs and adjusting beam height.
Procedure for replacing bulbs in the tail and stop lamps.
Instructions for replacing bulbs for instrument illumination and warning lamps.
Information on flashing indicator lamp connections and function.
Procedure for locating and replacing the flasher relay unit.
Information on the headlamp dip switch function and replacement.
Procedure for adjusting the horn's volume.
Instructions for locating and replacing the fuse.
Procedure for locating and replacing the ignition switch.
Information on the resistor's function and testing methods.
Guidelines for examining the wiring harness layout and connections.
Troubleshooting guide for common electrical system issues.
Overview of the 1985 models, focusing on differences from earlier versions.
Technical specifications for the 1985 models, highlighting differences.
Details on altered routine maintenance schedules for specific models.
Procedure for changing engine oil on the CG125(BR)-K model.
Routine maintenance for the air filter and fuel tap.
Procedure for checking brake shoe wear.
Procedure for checking the side stand for wear and lubrication.
Method for performing a compression test on the engine.
General information on engine modifications for specific models.
Instructions for separating the crankcase halves during engine disassembly.
General overview of the gear selector mechanism and its modifications.
Procedure for removing and refitting the petrol tank on Brazilian models.
Steps for removing the (T)PFC carburettor on Brazilian models.
Procedure for overhauling the (T)PFC carburettor on Brazilian models.
Instructions for refitting the (T)PFC carburettor on Brazilian models.
General information regarding the oil pump assembly.
Procedure for adjusting the (T)PFC carburettor on Brazilian models.
Steps for removing the front fork legs.
Procedure for dismantling the front fork legs.
Instructions for reassembling the front fork legs.
Steps for refitting the front fork legs into the motorcycle.
General information about the condenser's function and replacement.
Procedure for mounting and aligning the handlebars.
Procedure for locating and testing the regulator/rectifier unit.
Steps for removing and refitting the ignition switch.
Procedure for replacing instrument panel bulbs.
General| Compression Ratio | 9.0:1 |
|---|---|
| Transmission | 5-speed |
| Fuel System | Carburetor |
| Front Suspension | Telescopic fork |
| Front Tire | 2.75-18 |
| Rear Tire | 3.00-17 |
| Kerb Weight | 115 kg |
| Bore x Stroke | 56.5 mm x 49.5 mm |
| Ignition | CDI |
| Rear Brake | Drum |
| Engine Type | Air-cooled, 4-stroke, single-cylinder |
| Starting System | Kick start / Electric start (depending on the model) |
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