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Honda 2005 CRF450R User Manual

Honda 2005 CRF450R
169 pages
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Table of Contents

Questions and Answers:

Honda 2005 CRF450R Specifications

General IconGeneral
Engine Type449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke96.0mm x 62.1mm
Compression Ratio12.0:1
Transmission5-speed
Front Suspension47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Front BrakeSingle 240mm disc with twin-piston caliper
Rear BrakeSingle 240mm disc
Front Tire80/100-21
Rear Tire110/90-19
Wheelbase58.3 inches
Seat Height37.6 inches
Fuel Capacity1.9 gallons
InductionKeihin 40mm carburetor
IgnitionCD with electronic advance
Final Drive#520 chain
Rear SuspensionPro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns)
Curb WeightApprox. 220 pounds

Summary

Motorcycle Safety

Important Safety Information

Key safety information and recommendations to help you ride your CRF safely.

Important Safety Precautions

Essential precautions for safe riding, including personal condition and protective gear.

Before Riding

Is Your Motorcycle Ready to Ride?

Checking the motorcycle's condition and components before each ride.

Pre-ride Inspection

Detailed checklist of items to inspect before every ride.

Basic Operating Instructions

Servicing Your Honda

Service Procedures

Step-by-step instructions for performing various maintenance tasks on fluids, engine, and chassis.

Adjustments for Competition

Front Suspension Adjustments

Methods for adjusting front suspension for rider weight and riding conditions.

Rear Suspension Adjustments

Adjusting rear suspension for rider weight, riding conditions, and track conditions.

Suspension Adjustments for Track Conditions

Specific suspension tuning recommendations for soft, hard, and muddy track conditions.

Carburetor Adjustments & Tuning Tips

Fine-tuning the carburetor for specific competition needs and conditions.

Gearing

Adjusting engine power delivery by changing final drive ratio for optimal track performance.

Tips

Troubleshooting

Flow charts to help diagnose and solve common engine performance issues.

Technical Information

Torque Specifications

Torque values for nuts, bolts, and fasteners for engine and frame components.

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