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Overview of the manual, its structure, and Aprilia's policies.
Lists other relevant manuals for detailed information.
Defines common abbreviations and symbols used throughout the manual.
Explains manual organization, conventions, and terminology used.
Outlines essential safety guidelines for operating and maintaining the vehicle.
Highlights hazardous materials and components requiring careful handling.
Provides essential recommendations for the vehicle's initial break-in period.
Details the location and importance of serial and identification numbers.
Guides on proper tool usage and the necessity of genuine Aprilia parts.
Lists detailed technical specifications for the Leonardo 250 and 300 models.
Recommends specific lubricants, fluids, and chemicals for maintenance.
Provides critical torque specifications for fasteners to ensure safety.
Introduces the importance of regular maintenance for optimal performance.
Presents a schedule of maintenance tasks and recommended intervals.
Covers battery types, checks, and maintenance procedures.
Details the inspection, cleaning, and replacement of the spark plug.
Explains the cleaning and maintenance of the air filter and its housing.
Provides instructions for checking, topping up, and changing coolant.
Covers checking brake fluid level, pad wear, and system bleeding.
Details how to check, top up, and change engine oil and filter.
Explains how to check and change the transmission oil.
Covers steering checks and adjustments.
Details checks for the engine fulcrum axis and rear suspension adjustment.
Explains idling adjustment and throttle grip free play setting.
Covers inspection of wheels, tyres, and inflation pressure.
Refers to the engine workshop manual for lubrication system details.
Explains the fuel system diagram and components.
Provides step-by-step instructions for removing the fuel tank.
Details the procedure for removing the fuel pump assembly.
Explains the removal and checking of the air filter element.
Provides steps to remove the air filter box.
Presents a diagram and specifications for the carburettor.
Details the procedure for removing the carburettor.
Illustrates the layout of the cooling system components and fluid flow.
Covers the removal of the radiator and its associated parts.
Step-by-step guide for removing the electric cooling fan.
Instructions for removing the coolant thermal switch.
Details the procedure for removing the coolant thermistor.
Provides steps for removing the coolant temperature sensor.
Instructions for removing the coolant expansion tank.
Covers the removal of the exhaust system components.
Details the process of removing the engine from the frame.
Covers removal of various control components.
Covers removal of frame-related components.
Covers wheel diagrams, removal, and bearing replacement.
Details rear wheel diagrams and removal procedures.
Covers front brake diagrams, pad replacement, and disc checks.
Covers rear brake diagrams, pad replacement, and disc checks.
Covers steering diagrams and component checks.
Details front fork diagrams and oil level checks.
Details rear suspension removal and reassembly.
Covers removal and replacement of body panels and covers.
Covers the removal and replacement of electrical components.
Shows the layout and identification of electrical components on the vehicle.
Provides the wiring diagram for the Leonardo 250 and 300 models.
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General