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Honda CRF450R 2011 User Manual

Honda CRF450R 2011
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Manutenzione della propria Honda 103
Catena di trasmissione
Misurare il diametro dei rulli superiore (1) e
inferiore (2) della catena di trasmissione.
Rimuoverli se sono al di sotto del limite di
servizio.
LIMITE DI SERVIZIO: 35 mm
Sostituire il rullo se è oltre il limite di servizio.
Installare il rullo superiore della catena di
trasmissione (verde) con il segno “ ” (3)
rivolto verso il telaio e il rullo inferiore della
catena di trasmissione (nero) con il segno “
(3) rivolto verso l’esterno.
Installare il bullone e il dado dei rulli della
catena di trasmissione.
Serrare il bullone e il dado dei rulli della catena
di trasmissione alla coppia specificata:
12 N·m (1,2 kgf·m)
1. Allentare il dado dell’asse posteriore (1).
2. Allentare i controdadi del registro della
catena (2) e girare i bulloni di registro (3) in
senso antiorario per diminuire il lasco o in
senso orario per aumentarlo.
Allineare i segni di riferimento (4) delle
piastre dell’asse (5) con gli stessi segni di
riferimento (6) su entrambi i lati del
forcellone.
3. Serrare il dado dell’asse posteriore alla
coppia specificata:
128 N·m (13,1 kgf·m)
4. Ricontrollare il gioco della catena di
trasmissione e, se necessario, registrarlo.
5. Girare il bullone di registro in senso
antiorario finché non tocca leggermente le
piastre dell’asse. Quindi, serrare i
controdadi del registro della catena alla
coppia specificata tenendo fermo il bullone
di registro con una chiave inglese.
27 N·m (2,8 kgf·m)
Lubrificanti commerciali per catene di
trasmissione sono disponibili presso la
maggior parte dei negozi di ricambi per
motociclette e devono essere usati
preferibilmente rispetto all’olio motore. Si
consiglia un lubrificante per catene o prodotto
equivalente, oppure olio per ingranaggi SAE 80
o 90.
Saturare di olio tutti i giunti della catena, in
modo che il lubrificante penetri negli spazi
esistenti tra le superfici adiacenti delle piastrine
delle maglie e dei rulli.
Rulli della catena di trasmissione
(1) rullo superiore della catena di trasmissione (verde)
(2) rullo inferiore della catena di trasmissione (nero)
(3) segno “
(3)
(1)
(2)
Registrazione
(1) dado dell’asse posteriore
(2) controdadi del registro della catena
(3) bulloni di registro
(4) segni di riferimento
(5) piastre dell’asse
(6) segni di riferimento
(5)
(4)
(2)
(1)
(3)
(6)
Lubrificazione
CRF450R_IT.book Page 103 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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