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Honda CRF450R 2011 User Manual

Honda CRF450R 2011
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Specifiche
Informazioni tecniche 153
Specifiche
Elemento Sistema metrico
Dimensioni
Lunghezza totale 2.191 mm
Larghezza totale 827 mm
Altezza totale 1.273 mm
Passo 1.491 mm
Altezza della sella 954 mm
Altezza dei poggiapiedi 424 mm
Distanza da terra 332 mm
Telaio
Tipo Bitubo
Sospensioni anteriori
Forcella telescopica,
corsa 273 mm,
escursione 310 mm
Sospensioni posteriori Pro-link, corsa 320 mm
Misura pneumatico
anteriore (tipo ED)
80/100-21 M/C 51M MST
PIRELLI
SCORPION MX MIDSOFT 32
Misura pneumatico
posteriore (tipo ED)
110/90-19 62M NHS
PIRELLI
SCORPION MX MIDSOFT 32
Misura pneumatico
anteriore (tipo U)
80/100-21 51M
DUNLOP D742FA
Misura pneumatico
posteriore (tipo U)
120/80-19 63M
DUNLOP D756
Tipo di pneumatico a carcassa diagonale,
con camera d’aria
Pressione pneumatico
anteriore (a freddo)
100 kPa (1,0 kgf/cm
2
)
Pressione pneumatico
posteriore (a freddo)
100 kPa (1,0 kgf/cm
2
)
Freno anteriore,
superficie di frenata
Freno a disco singolo
334,5 cm
2
Freno posteriore,
superficie di frenata
Freno a disco singolo
391,1 cm
2
Carburante
benzina senza piombo,
numero di ottano RON
non inferiore a 95
Capacità serbatoio carburante
5,7 ℓ
Angolo di inclinazione sterzo
26°53’
Avancorsa 114,5 mm
Capacità d’olio della forcella
(tranne smorzatore forcella)
355 cm
3
Elemento Sistema metrico
Motore
Tipo Raffreddato a liquido, 4
tempi
Disposizione cilindri
Monocilindrico inclinato
di 6°30’ dalla verticale
Alesaggio e corsa 96,0 x 62,1 mm
Cilindrata 449,7 cm
3
Rapporto di compressione
12,0 : 1
Gioco valvole (a freddo)
Aspirazione:
0,16 ± 0,03 mm
Scarico: 0,28 ± 0,03 mm
Quantità di olio motore
0,58 ℓ
dopo lo svuotamento
dopo lo svuotamento e
il cambio del filtro
dell’olio
0,62 ℓ
dopo lo smontaggio 0,77 ℓ
Capacità olio cambio
0,59 ℓ
dopo lo svuotamento
dopo lo smontaggio 0,67 ℓ
Corpo farfallato
Numero d’identificazione GQ25A
Regime minimo in prima 1.800 ± 100 min
-1
(giri/min)
Impianto di raffreddamento
Capacità di liquido
refrigerante
1,04 ℓ
dopo lo svuotamento
dopo lo smontaggio 1,06 ℓ
Elemento Sistema metrico
Trasmissione
Tipo di frizione Multidisco in bagno d’olio
Cambio A 5 marce, con
ingranaggi sempre in
presa
Rapporto di riduzione
primario
2,739
Rapporto di riduzione I 1,800
Rapporto di riduzione II 1,470
Rapporto di riduzione III 1,235
Rapporto di riduzione IV 1,050
Rapporto di riduzione V 0,909
Rapporto di riduzione
finale
3,692
Schema dei cambi di
marcia
Pedale sinistro con ritorno
automatico 1-F-2-3-4-5
Impianto elettrico
Accensione ECM
Avviamento Avviamento a pedale
Candela : NGK
Standard SILMAR9A-9S
Per marcia prolungata
ad alta velocità
NGK
SILMAR10A-9S
Distanza tra gli elettrodi
della candela
0,8 – 0,9 mm
CRF450R_IT.book Page 153 Wednesday, July 14, 2010 10:47 AM

Table of Contents

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Honda CRF450R 2011 Specifications

General IconGeneral
Engine Type449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke96.0mm x 62.1mm
Compression Ratio12.0:1
TransmissionClose-ratio five-speed
Final Drive#520 chain; 13T/48T
Front BrakeSingle 240mm disc with twin-piston caliper
Rear BrakeSingle 240mm disc
Front Tire80/100-21
Rear Tire120/80-19
Trail114mm (4.5 inches)
InductionPGM-FI, 46mm throttle body
Front Suspension48mm inverted with rebound and compression damping adjustability; 12.2 inches travel
Rear SuspensionPro-Link single shock with rebound and compression damping adjustability; 12.4 inches of travel
Wheelbase58.7 inches
Seat Height37.6 inches
Fuel Capacity1.5 gallons

Summary

IMPORTANT NOTICES

A Few Words About Safety

Safety Messages

Explains safety alert symbols and signal words (DANGER, WARNING, CAUTION).

Motorcycle Safety

Important Safety Information

Provides essential precautions for safe operation and maintenance.

Before Riding

Are You Ready to Ride?

Guides on ensuring rider readiness and understanding controls.

Is Your Motorcycle Ready to Ride?

Details checks to ensure the motorcycle is safe for riding.

Pre-ride Inspection

Lists essential checks to perform before every ride.

Instruments & Controls

Basic Operating Instructions

Starting & Stopping the Engine

Details procedures for starting, stopping, and handling engine issues.

Servicing Your Honda

Engine

Covers maintenance and adjustments for the engine components.

Chassis

Details maintenance and adjustments for the motorcycle chassis.

Engine

Throttle

Explains throttle freeplay, adjustments, and inspection procedures.

Engine Idle Speed

Details how to adjust the engine's idle speed for optimal performance.

Clutch System

Covers clutch lever adjustment, freeplay, and disc/plate service.

Clutch System

Spark Plug

Valve Clearance

Piston/Piston Rings/Piston Pin

Suspension

Front Suspension Inspection

Guides on inspecting front suspension components for wear or damage.

Rear Suspension Inspection

Details how to inspect the rear shock absorber and swingarm bearings.

Brakes

Front Brake Lever Adjustment

Explains how to adjust the front brake lever for comfort.

Rear Brake Pedal Height

Guides on adjusting the rear brake pedal to the correct height.

Wheels

Tyres & Tubes

Drive Chain

Exhaust Pipe/Muffler

Steering Damper

Additional Maintenance Procedures

Adjustments for Competition

Front Suspension Adjustments

Covers adjustments for front suspension air pressure, damping, and springs.

Rear Suspension Adjustments

Details adjustments for rear suspension spring pre-load and damping.

Tuning Tips

Offers advice on engine tuning using spark plug readings.

Steering Damper Adjustment

Explains how to adjust the steering damper for optimal control.

Chassis Adjustments

Covers adjustments for rear end, fork height, and wheelbase.

Gearing

Explains how gearing changes affect power delivery and track performance.

Front Suspension Adjustments

Front Suspension Air Pressure

Details how to adjust front fork air pressure for ride conditions.

Front Suspension Damping

Explains how to adjust compression and rebound damping.

Front Suspension Disassembly

Damper Oil Change

Fork Assembly

Rear Suspension Adjustments

Rear Suspension Spring Pre-Load

Guides on adjusting spring pre-load for proper ride height.

Rear Suspension Damping

Explains adjustments for rear suspension high and low speed damping.

Rear Suspension Race Sag

Suspension Adjustments for Track Conditions

Suspension Adjustment Guidelines

Tuning Tips

Steering Damper Adjustment

Chassis Adjustments

Gearing

Tyre Selection for Track Conditions

Personal Fit Adjustments

Tips

Troubleshooting

Presents flowcharts to diagnose and resolve common operational issues.

Technical Information

Torque Specifications

Provides a comprehensive list of torque values for various fasteners.

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