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General| Model | NU50 |
|---|---|
| Category | Scooter |
| Ignition | CDI |
| Transmission | Automatic |
| Final Drive | Belt |
| Front Brake | Drum |
| Rear Brake | Drum |
| Front Tire | 2.50-10 |
| Rear Tire | 2.50-10 |
| Starting System | Kick start |
| Rear Suspension | Unit swing |
| Fuel Capacity | 4.5 L |
Covers general safety precautions and service rules for maintenance and repair.
Details on identifying the motorcycle model and its key serial numbers.
Provides detailed technical specifications for the motorcycle's components.
Lists special and common tools required for servicing.
Specifies torque settings for critical fasteners in the engine and chassis.
Illustrates the correct routing for cables and wire harnesses on the motorcycle.
Diagram and explanation of the motorcycle's lubrication system.
General service information, specifications, and oil recommendations.
Common issues and solutions related to the lubrication system.
Covers oil level check, oil change, and oil tank removal.
Procedures for cleaning the oil strainer and servicing the oil pump.
Instructions for bleeding air from oil lines and pump.
Highlights key lubrication points for engine and frame components.
General service info, maintenance schedule, and specifications.
Covers fuel lines, fuel strainer, air cleaner, and bystarter element maintenance.
Procedures for spark plug, throttle, oil pump cable, idle speed, ignition timing, and compression.
Covers battery, brakes, suspension, steering, headlight, wheels, tires, and fasteners.
General info, specs, tool, and troubleshooting for the fuel system.
Disassembly and inspection of the throttle valve and jet needle.
Covers carburetor removal, float/valve/jet disassembly, and float level inspection.
Procedures for installing the carburetor, throttle valve, and reed valve.
Includes fuel strainer cleaning, and fuel tank removal/installation.
General info, specifications, and torque values for engine servicing.
Step-by-step instructions for removing the engine from the motorcycle.
Step-by-step instructions for installing the engine onto the motorcycle.
Service info, specifications, torque, and troubleshooting for cylinder components.
Covers cylinder head removal, inspection, and decarbonizing.
Covers cylinder/piston removal, inspection, and measurements.
Inspection and installation of piston rings and connecting rod.
Steps for installing the cylinder head onto the cylinder.
Details on service info, torque values, and necessary tools for alternator work.
Step-by-step instructions for removing the alternator.
Step-by-step instructions for installing the alternator.
Covers left crankcase removal, bearing inspection, and drive belt procedures.
Removal, disassembly, inspection, assembly, and installation of the movable drive face.
Covers kick starter removal, disassembly, inspection, assembly, and installation.
Covers clutch removal, driven face disassembly, inspection, and assembly.
Overview of service, troubleshooting, specifications, and tools for the final reduction unit.
Step-by-step instructions for disassembling the final reduction unit.
Procedures for inspecting drive shaft, gears, and bearings.
Steps for installing the final reduction unit components.
Service info, troubleshooting, specifications, and tools for crankcase/crankshaft.
Detailed steps for separating the crankcase halves.
Procedures for removing and inspecting the crankshaft.
Steps for assembling the crankcase halves.
Service info, troubleshooting, specs, torque, and tools for steering and front end.
Procedures for speedometer and headlight removal/installation.
Covers handlebar removal/installation and front wheel maintenance.
Maintenance for front brake lining and front fork components.
Procedures for steering stem and ball race disassembly/assembly and installation.
Service info, troubleshooting, specs, torque, and tools for the rear end.
Covers rear wheel removal, rim runout inspection, and installation.
Covers rear brake lining inspection, disassembly, and assembly.
Procedures for shock absorber removal, disassembly, assembly, and installation.
General info, troubleshooting, and specifications for electrical systems.
Covers ignition system, spark plug, ignition coil, and CDI unit.
Procedures for starter motor, battery, and charging system.
Maintenance for switches, horn, oil level sensor, and indicator lamp.
Explanation of the C.D.I. system, its advantages, and operation.
Details on the automatic choke system, bystarter chamber, and control box.
Explanation of the V-Matic drive, pulleys, belt, and reduction ratios.
Description of the oil level indicator, its construction, and operation.
Troubleshooting for engine not starting, hard starting, and lack of power.
Troubleshooting for poor performance, steering, and wheel wobbling.
Troubleshooting for starter motor issues and oil indicator lamp problems.
General wiring diagram for the motorcycle's electrical system.
Specific wiring diagram for the NU50 model.
Specific wiring diagram for the NU50M model.
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