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General| Displacement | 449 cc |
|---|---|
| Bore x Stroke | 97.0 mm x 60.8 mm |
| Fuel System | Fuel injection |
| Transmission | 5-speed |
| Final Drive | Chain |
| Tires Front | 80/100-21 |
| Seat Height | 38.2 in |
| Fuel Capacity | 1.6 gal |
| Wet Weight | 245 lb |
| Width | 32.5 in |
| Engine Type | Single-cylinder, 4-stroke |
| Ignition | TCI |
| Front Suspension | KYB® coil spring, speed-sensitive system; 12.2-in travel |
| Rear Suspension | Kayaba shock |
| Front Brake | Hydraulic disc |
| Rear Brake | Hydraulic disc |
| Tires Rear | 120/80-19 |
Explains notations used for important information in the manual.
Explains the structure of the manual and how to interpret its components.
Defines symbols used throughout the manual for clarity.
Lists essential safety precautions for motorcycle operation and ownership.
Provides guidance on safe riding practices and pre-operation checks.
Emphasizes the importance of protective gear for rider safety.
Warns about the dangers of carbon monoxide from engine exhaust.
Provides instructions for safely transporting the motorcycle.
Identifies and illustrates the location of critical safety and information labels.
Provides an overview and identification of the motorcycle's main components.
Explains the importance and location of the Vehicle Identification Number (VIN).
Explains the importance and location of the engine serial number.
Explains the function and usage of the Power Tuner app and CCU.
Provides essential steps and precautions before starting disassembly.
Stresses the importance of using genuine Yamaha parts and recommended parts.
Details the replacement and installation of gaskets, oil seals, and O-rings.
Explains the replacement and proper use of lock washers, plates, and cotter pins.
Covers essential information and precautions for handling electrical components.
Explains how to check and ensure proper connections of leads, couplers, and connectors.
Lists required special tools with their part numbers and reference pages.
Explains the function and operation of the launch control switch.
Describes the location and function of the mode switch.
Provides a step-by-step guide for starting a cold engine.
Details the recommended break-in procedures for new machines.
Details the essential maintenance tasks required after the break-in period.
Explains the procedure for maintaining the air filter element.
Provides general tightening torques for standard fasteners.
Lists specific tightening torques for engine components.
Lists specific tightening torques for chassis components.
Provides instructions for cleaning and general care of the motorcycle.
Details procedures for short-term and long-term storage of the motorcycle.
Lists general specifications of the vehicle, including dimensions and weight.
Provides detailed specifications for the engine, including combustion, cooling, and starting systems.
Lists chassis-related specifications like caster angle and trail.
Lists electrical specifications for various systems.
Illustrates cable routing for the frame and engine from the left side.
Shows cable routing for the handlebar area from a front view.
Details the recommended maintenance schedule and intervals for various components.
Lists pre-operation checks for the machine's overall condition.
Provides detailed steps for adjusting valve clearance.
Details the procedure for changing the engine oil and oil filter.
Provides instructions for cleaning and oiling the air filter element.
Details the procedure for draining, flushing, and refilling the cooling system.
Explains how to adjust the front brake lever position and check for drag.
Details the procedure for bleeding the hydraulic brake system.
Explains how to check and adjust the drive chain slack.
Guides on checking and adjusting the steering head for play or binding.
Explains how to adjust front fork settings, including rebound and compression damping.
Explains how to adjust spring preload and damping for the rear shock absorber.
Explains how to check tire pressure and condition.
Details the steps for removing the front wheel assembly.
Outlines procedures for checking the front wheel axle, tire, spokes, and bearings.
Provides instructions for installing the front wheel assembly onto the motorcycle.
Details the steps for removing the rear wheel assembly.
Guides on checking and replacing the rear wheel sprocket.
Details the steps for installing the rear wheel assembly onto the motorcycle.
Details the steps for removing the front brake caliper.
Details the procedure for replacing the front brake pads.
Details the steps for installing the front brake caliper.
Details the steps for removing the rear brake caliper.
Details the procedure for replacing the rear brake pads.
Details the steps for installing the rear brake master cylinder.
Details the steps for removing the handlebar and its components.
Outlines how to check the handlebar for bends or damage.
Provides instructions for installing the handlebar and related parts.
Details the steps for removing and disassembling the front fork legs.
Outlines procedures for checking front fork legs, including tubes and springs.
Provides instructions for installing the front fork legs onto the motorcycle.
Details the steps for removing the lower bracket assembly.
Outlines procedures for checking the steering head bearings and components.
Provides instructions for installing the steering head assembly.
Details the steps for removing the rear shock absorber assembly.
Outlines how to check the rear shock absorber for leaks and smooth action.
Provides instructions for installing the rear shock absorber assembly.
Details the steps for removing the swingarm assembly.
Outlines how to check the swingarm for bends, cracks, and pivot shaft condition.
Details the procedure for installing the drive chain, including lubrication and adjustment.
Details the procedure for removing the engine from the chassis.
Covers removal, checking, and installation of the camshaft.
Details removal, checking, and installation of the cylinder head.
Explains removal, checking, and installation of valves and related components.
Covers removal, checking, and installation of the cylinder and piston assembly.
Details removal, checking, and installation of the generator components.
Explains removal and checking of the starter clutch assembly.
Covers removal, disassembly, checking, and assembly of the electric starter motor.
Details removal, checking, and installation of the clutch assembly.
Covers removal, checking, and installation of the shift shaft and related parts.
Details removal, checking, and assembly of the oil pump.
Covers separating, checking, and assembling the crankcase.
Details removal, checking, and installation of the crankshaft and balancer shaft.
Covers removal, checking, and installation of the transmission, shift drum, and forks.
Details removal, checking, and installation of the radiator.
Covers removal, disassembly, checking, and assembly of the water pump.
Details removal, checking, and installation of the fuel tank and related components.
Covers removal, checking, and adjustment of the throttle body assembly.
Provides the circuit diagram and troubleshooting for the ignition system.
Details the circuit diagram and troubleshooting for the electric starting system.
Provides the circuit diagram and troubleshooting for the charging system.
Covers circuit diagrams and troubleshooting for the fuel injection system.
Lists and illustrates various electrical components.
Provides instructions for checking and charging the battery.
Addresses engine starting problems when no fault code is detected.
Covers common clutch-related symptoms, causes, and actions.
Addresses symptoms, causes, and actions for transmission gear shifting issues.
Covers symptoms, causes, and actions for cooling system overheating and noise.
Covers symptoms, causes, and actions for disc brake performance issues.
Addresses symptoms, causes, and actions for suspension issues.
Addresses symptoms, causes, and actions for steering and handling issues.
Covers symptoms, causes, and actions for charging system problems.
Provides a table for self-diagnostic functions related to the fuel injection system.
Details sensor operation based on diagnostic codes.
Covers chassis-related tuning adjustments.
Details tire pressure adjustment based on circuit conditions.
Explains how to set the front fork based on rider feel and circuit conditions.
Explains how to set the rear shock absorber based on rider feel and circuit conditions.
Provides a table for adjusting front fork settings based on symptoms.
Offers a table for adjusting rear shock absorber settings based on symptoms.
Presents the complete wiring diagram for the YZ450FN 2022 model.
Lists the color codes used for wires in the wiring diagram.
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