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Benelli TNT125 - Service Manual

Benelli TNT125
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TNT
125
Motorcycle Maintenance
Manual
0

Table of Contents

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Benelli TNT125 Specifications

General IconGeneral
Displacement125 cc
Transmission5-speed
Fuel SystemEFI
Fuel Capacity7.2 liters
Seat Height780 mm
Dry Weight116 kg
Bore x Stroke54 mm x 54.5 mm
Starting SystemElectric
Wheelbase1215 mm
Engine TypeSingle cylinder, 4-stroke, air-cooled
Front SuspensionUpside-down fork
Front BrakeSingle disc
Rear BrakeSingle disc
Front Tire120/70-12
Rear Tire130/70-12
Max Power8.2 kW (11.1 Cv) @ 9500 rpm
Rear SuspensionSwing arm with lateral shock absorber with adjustable spring preload

Summary

Chapter I Basic Information

Notes before Maintenance

Provides essential precautions for safe and correct motorcycle maintenance, removal, and reassembly.

General Technical Parameter

Details key technical specifications for the motorcycle, including dimensions and engine performance.

Unit Conversion Table

Provides conversion factors for various units used in technical specifications and measurements.

Chapter II Regular Maintenance

Regular Maintenance Table

Outlines the recommended maintenance schedule based on mileage and time intervals for optimal running.

Torque and Locking Agent

Specifies locking torques for main fasteners and the meaning of remark codes for proper assembly.

Technical Parameters

Lists technical specifications and use limits for various motorcycle components.

Special Tools

Details special tools required for complete and correct adjustment and assembly procedures.

Regular Maintenance Procedures

Provides step-by-step procedures for regular maintenance tasks on key systems.

Electronic Fuel Injection System (EFI)

Covers maintenance and checks for the EFI system, including throttle, fuel lines, and evaporative systems.

Engine Cylinder Head and Cylinder Head Cover

Details procedures for checking and adjusting valve clearance on the engine.

Wheel;Tire

Procedures for checking tire pressure, damage, and wheel bearings for safe operation.

Final Drive Mechanism

Maintenance procedures for the drive chain, including checking slackness, wear, and alignment.

Brake

Critical procedures for checking brake hoses, fluid level, pads, and lights for safety.

Suspension System

Procedures for checking front fork and rear shock absorber condition and oil leakage.

Steering System

Guidance on checking and adjusting steering clearance and tightness for safe control.

Electrical System

Checks and maintenance for lights, switches, and various electrical components.

Replacement Part

Guidelines for replacing common wear items like air filter, fuel pipe, and oil.

Chapter III Electronic Fuel Injection System (EFI)

Introduction to EFI

Provides an overview of the Delphi EFI system, its components, and function.

EFI System

Details the EFI system's electrical schematic, showing connections between components.

ECU

Information on the Engine Control Unit, including appearance, disassembly, and installation.

Fuel pump

Covers the fuel pump's working principle, maintenance, and fault diagnosis.

Throttle Body

Explains the working principle, appearance, and disassembly of the throttle body.

Fuel injector

Details fuel injector function, specifications, lubrication, and installation notes.

Fault Maintenance Diagnosis Method of EFI System

Methods for diagnosing EFI system faults using the instrument panel fault lamp.

Diagnosing Fault Using Diagnostic Apparatus

Procedure for diagnosing faults using a specialized diagnostic apparatus.

Chapter IV Engine

Main Parameters of Engine

Provides key technical specifications for the engine, including type, displacement, and power.

Lubrication System

Details the lubrication system's function and provides a diagram of its components.

Troubleshooting

Lists common engine oil level and pressure issues with potential causes.

Cylinder Head; Distribution

Covers exploded views, technical parameters, and fault diagnosis for the cylinder head.

Cylinder Block; Piston

Provides exploded views and technical parameters for the cylinder block and piston assembly.

Clutch

Details clutch troubleshooting for common issues like lever stiffness and slipping.

Chapter V Finished Motorcycle

Wheel; Tire

Covers procedures for disassembling, checking, and installing wheels and tires.

Drive Mechanism

Maintenance procedures for the drive chain, including slackness, wear, and lubrication checks.

Brake

Detailed procedures for front and rear brake systems, including calipers, pads, and fluid.

Suspension System

Procedures for disassembling, installing, and checking front and rear shock absorbers.

Handlebar

Instructions for disassembling and installing the handlebar and related controls.

Frame

Details the disassembly and installation of the motorcycle frame and its components.

Muffler

Procedures for disassembling and installing the muffler and related components.

Disassembling;Installing Engine

Comprehensive guide for engine removal, disassembly, and reinstallation.

Chapter VI Electrical System

Precautions

Important safety precautions for maintaining the electrical system.

Electrical Wiring

Guidance on inspecting wires, connectors, and circuits for proper electrical system function.

Charging System

Details the charging system's circuit diagram and technical parameters.

Battery

Procedures for battery disassembly, installation, activation, and charging state inspection.

Magneto

Covers magneto disassembly, checking procedures, and installation.

Ignition System

Information on ignition system circuit diagrams, precautions, and component checks.

Starter System

Details on the starter system's circuit diagram, motor, and relay checks.

Lighting System

Procedures for disassembling and checking headlights, tail lights, and turn signals.

Instrument

Covers instrument disassembly, indicator lights, and function buttons.

Switch, Sensor and Other Parts

Maintenance and inspection for switches, sensors, and other electrical components.

Fuse

Procedures for disassembling, installing, and checking fuses for electrical protection.

Chapter VII Appendix

Winding Method of Cable, Wire and Hose

Provides guidance on proper routing and securing of cables and hoses for safety.

Troubleshooting Guide

Comprehensive guide to diagnosing and resolving common engine and system issues.

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