To Next PageTo Next PageWhy are spark plug electrodes overheated in my APRILIA Motorcycle?
If the spark plug electrodes are overheated or burnt out on your APRILIA Motorcycle, consider these causes: * Spark plug heat rating too high: Replace with a lower rating spark plug. * Engine overheats: Adjust. * Spark plug loose: Tighten. * Carburetion too lean: Adjust carburetor.
Why is my APRILIA RS 125 Motorcycle losing power?
If your APRILIA Motorcycle is experiencing a loss of engine power, consider the following potential causes: * Worn piston rings or cylinder: Replace them. * Incorrect air gap between spark plug electrodes or a faulty ignition system: Adjust or replace as necessary. * Obstructed carburetor jets: Clean them. * Incorrect fuel level in the carburetor float chamber: Adjust the fuel level. * Clogged air cleaner: Clean it. * Air leaking past the intake duct: Tighten or replace the duct. * Engine receiving too much oil: Adjust the oil pump.
What to do if my APRILIA Motorcycle engine overheats?
If your APRILIA Motorcycle engine is overheating, it could be due to several reasons: * Too much carbon build-up on the piston crown: Clean it. * Engine receiving insufficient oil: Adjust the oil pump. * Faulty oil pump or obstructed oilways: Replace or clean them. * Fuel level in carburetor float chamber too low: Adjust it. * Air leaking into the intake duct: Tighten or replace it. * Engine oil used does not meet specification: Use specified oil. * Faulty cooling system: Consult the radiator section for further troubleshooting.
Why does the battery on my APRILIA RS 125 Motorcycle run flat quickly?
If the battery on your APRILIA Motorcycle runs flat quickly, it could be due to these reasons: * Faulty charge system: Check the generator, regulator/rectifier, and circuit connections, then rectify to obtain a proper charge. * Overcharged battery: Replace the battery and repair the charge system if the cells have lost much of their active material. * Excessive deposit build-up: Replace the battery if the build-up is caused by the wrong electrolyte, leading to short-circuits. * Battery at the end of its life: Replace the battery.
Why APRILIA Motorcycle engine is burning oil?
If your APRILIA Motorcycle engine is burning oil, it could be due to: * Oil pump out of adjustment: Adjust it. * Crankshaft seal damaged or worn: Replace it.
What causes erratic operation in mid-to-high speed range in my APRILIA Motorcycle?
If your APRILIA Motorcycle experiences erratic operation in the mid-to-high speed range, check these: * Obstructed main jet: Check and clean it. * Build-up sticking to the tapered needle: Check and clean it. * Malfunctioning throttle valve: Check throttle valve operation. * Obstructed filter: Inspect and clean it.
What causes loss of braking in my APRILIA RS 125?
If you experience a loss of braking on your APRILIA Motorcycle, it could be due to: * Leaking brake hydraulic system: Repair or replace it. * Worn brake pads: Replace them. * Contact surfaces of brake pads contaminated with oil: Replace them. * Worn brake discs: Replace them. * Air in the hydraulic circuit: Bleed the circuit.
Why do spark plugs foul too quickly in my APRILIA Motorcycle?
If the spark plugs on your APRILIA Motorcycle become foul too quickly, it may be due to: * Worn piston rings: Replace them. * Worn piston or cylinder: Replace them.
Why does the brake lever have excessive travel on my APRILIA Motorcycle?
If the brake lever on your APRILIA Motorcycle has excessive travel, it could be due to: * Air in the hydraulic circuit: Bleed the circuit. * Low brake fluid level: Top up to the specified level and bleed the circuit. * Brake fluid does not meet specification: Change using specified brake fluid.
What causes the generator of my APRILIA Motorcycle to overcharge the battery?
If the generator in your APRILIA Motorcycle is overcharging the battery, check the following: * Short circuit inside the battery: Replace the battery. * Damaged or faulty regulator/rectifier: Replace it. * Erratic regulator/rectifier ground: Clean and tighten the ground terminals.
General| Displacement | 124.8 cc |
|---|---|
| Transmission | 6-speed |
| Front Suspension | Upside-down fork |
| Rear Suspension | Monoshock |
| Front Brake | Single disc |
| Rear Brake | Single disc |
| Dry Weight | 114 kg |
| Fuel System | Carburetor |
| Frame | Aluminum perimeter frame |
| Engine Type | Single cylinder, 2-stroke |
Introduction to the manual, its purpose, and intended audience.
Lists available reference manuals and their part numbers.
Explains common abbreviations, symbols, and conventions used in the manual.
Describes the structure and organization of the manual.
Details safety conventions, warnings, and precautions.
Outlines basic rules and safety guidelines for maintenance.
Identifies hazardous materials and components with warnings.
Provides guidelines for engine and vehicle break-in procedures.
Explains the location of frame and engine serial numbers.
Advises on using appropriate tools and original spare parts.
Lists recommended products and lubricants for maintenance.
Instructions for using front and rear service stands.
Explains the importance of routine maintenance for vehicle performance.
A comprehensive chart detailing maintenance intervals for various parts.
Identifies all points requiring lubrication and the type of lubricant.
Describes the functions and operation of the multifunction computer display.
General guidelines for tightening various fasteners.
Specific torque settings and fastener details for different motorcycle components.
Information on battery types, maintenance, inspection, and charging.
Checks and maintenance for various electrical components.
Procedures for checking, cleaning, and replacing spark plugs.
Instructions for checking, cleaning, and changing the air cleaner element.
Checks and replacement intervals for fuel, oil, brake, and coolant tubes.
Procedures for lifting and removing the fuel tank.
Steps for checking and topping up the coolant level.
Instructions for adjusting the clutch lever free play.
Procedures for checking and topping up front and rear brake fluid levels.
How to adjust the rear brake pedal height for rider comfort.
Procedure for adjusting the gearbox lever height.
Checking throttle operation and adjusting cable play.
Inspections and adjustments related to the steering and front fork.
Inspection and adjustment of the rear suspension and swinging arm.
Checks for front and rear wheels, including bearings and balancing.
Advice on tyre condition, wear, inflation, and replacement.
Procedures for tightening exhaust manifold nuts.
Inspection, cleaning, lubrication, and adjustment of the drive chain.
Step-by-step guide for removing the engine oil tank.
Procedure for removing the motorcycle's fuel tank.
Safety precautions and steps for draining the fuel tank.
How to remove the fuel cock from the fuel tank.
Steps for removing the airbox and air cleaner assembly.
Procedure for removing the carburetor from the intake manifold.
Diagram illustrating the layout of the cooling system components.
Instructions for draining and refilling the cooling system with new coolant.
Steps for removing and installing the radiator.
Procedure for removing and replacing the coolant thermistor.
Steps for removing and installing the thermostat.
Procedure for removing and installing the expansion reservoir.
Steps for removing the exhaust pipe and flange.
Technical specifications and general information about the engine.
Lists engine components that can be removed without removing the engine.
Detailed procedure for removing the engine from the motorcycle frame.
Step-by-step guide for reinstalling the engine into the motorcycle frame.
Details on RAVE valve operation and specifications.
Procedure for removing the RAVE exhaust valve assembly.
Inspection of RAVE valve components like seals and exhaust valve.
Steps for installing the RAVE exhaust valve assembly.
Exploded view diagram of the chassis components.
Procedure for removing and installing the rider's seat.
Steps for removing the right and left side fairings.
Procedure for removing the air dam.
Steps for removing the front fairing and headlight assembly.
Procedure for removing the windscreen.
Steps for removing the fuel tank filler cap.
Procedure for removing the fuel tank fairing.
Steps for removing the seat subframe cover.
Procedure for removing the tail section and passenger seat.
Steps for removing the front mudguard.
Procedure for removing the rear mudguard.
Steps for removing the seat end cover.
Procedure for removing the number plate bracket and associated lights.
Steps for removing the chain guard.
Procedure for removing the upper chain slider.
Steps for removing the lower chain slider.
Procedure for removing the air scoop.
Steps for safely removing the motorcycle battery.
Procedure for removing the Engine Control Unit (ECU).
Steps for removing the voltage rectifier.
Procedure for removing the right-hand handlebar light switch.
Steps for removing the left-hand handlebar light switch.
Procedure for removing the ignition switch and steering lock.
Steps for removing the instrument panel and its components.
Procedure for removing the headlight assembly.
Steps for removing the front direction indicators.
Procedure for removing the rear direction indicators.
Steps for removing the warning horn.
Procedure for removing the tail light assembly.
Steps for removing the throttle control assembly from the handlebar.
Procedure for removing the throttle cable from the pulley to the oil pump.
Steps for removing the front brake control assembly.
Steps for removing the front brake control assembly.
Procedure for removing the clutch cable.
Steps for removing the gear shift lever.
Procedure for removing the rear brake lever.
Steps for removing the left and right handlebars.
Procedure for removing the instrument panel subframe.
Steps for removing the seat latch mechanism.
Procedure for removing the right rider footpeg bracket.
Steps for removing the left rider footpeg bracket.
Procedure for removing the rider footpeg.
Steps for removing the passenger footpeg brackets.
Procedure for removing the passenger footpeg.
Steps for removing the side stand assembly.
Procedure for removing the seat subframe.
Detailed steps for removing the motorcycle frame.
Procedures for installing the motorcycle frame.
Exploded view diagram of the front wheel components.
Steps for removing the front wheel assembly.
Procedures for disassembling the front wheel hub and components.
Inspection of front wheel components like bearings, seals, spindle, and rim.
Steps for refitting the complete front wheel assembly.
Exploded view diagram of the rear wheel components.
Steps for removing the rear wheel assembly.
Procedures for disassembling the rear wheel hub and components.
Steps for removing and refitting the final drive sprocket assembly.
Inspection of rear wheel components like bearings, seals, spindle, and rim.
Steps for refitting the complete rear wheel assembly.
Diagram illustrating the front brake system components.
Procedure for replacing the front brake pads.
How to inspect the front brake disc for wear and run-out.
Steps for removing the front brake disc.
Diagram illustrating the rear brake system components.
Procedure for replacing the rear brake pads.
How to inspect the rear brake disc for wear and run-out.
Steps for removing the rear brake disc.
Procedure for removing the rear brake master cylinder.
Diagram illustrating the steering system components.
Steps for removing the headstock assembly.
Inspection of steering components like bearings and seals.
Procedures for reassembling the headstock.
Exploded view diagram of the front fork components.
Steps for removing the fork stanchion tubes and sliders.
Procedures for disassembling the fork stanchion tubes and sliders.
Steps for changing the front fork oil.
Inspection of fork stanchion tubes and sliders.
Procedures for assembling stanchion tubes and sliders.
Steps for installing stanchions and sliders back into the yokes.
Detailed procedure for removing the rear swinging arm.
Steps for disassembling the swinging arm bearings and components.
Inspection of swinging arm components like bearings, seals, and spindle.
Procedures for reassembling the swinging arm.
Steps for installing the swinging arm onto the frame.
Procedure for removing the rear shock absorber.
Steps for installing the rear shock absorber.
Procedure for removing the rear suspension linkage assembly.
Steps for disassembling the rear suspension linkage system.
Inspection of rear suspension linkage components.
Procedure for removing the drive chain.
Steps for refitting the drive chain.
Identifies the location of major electrical components on the motorcycle.
Introduction to the electrical system section.
Information on battery installation, maintenance, inspection, and testing.
Details of the ignition system, troubleshooting, and tests.
Information on the charge system layout, testing, and troubleshooting.
Details of the starter circuit, troubleshooting, and tests.
Information on sensors, rev counter circuit, and testing.
Explains visual and acoustic signals like indicators and horn.
Diagram and troubleshooting for the brake lights circuit.
Diagram and troubleshooting for the motorcycle's light circuits.
Details of the RAVE valve control unit and solenoid circuit.
Explains the logic circuit for the stand and neutral switches.
Procedures for replacing parking, high beam, low beam, tail, and indicator bulbs.
Instructions on how to check and replace fuses.
Procedure for adjusting the headlight beam height.
Comprehensive wiring diagram for the motorcycle's electrical system.
Introduction to the troubleshooting section.
Common engine problems, their causes, and remedies.
Common carburetor issues, causes, and solutions.
Troubleshooting for engine overheating or failure to warm up.
Common electrical system problems and their fixes.
Troubleshooting steps for battery issues like rapid discharge.
Common brake problems, causes, and remedies.
Common chassis-related problems like steering and suspension issues.
Diagrams showing the routing of brake, fuel, oil, clutch, and throttle cables/hoses.
