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Honda CRF450R 2011 User Manual

Honda CRF450R 2011
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12 Instruments & Controls
Indicator
Always clean around the ECM and keep debris
away from the connectors before disconnecting
them.
A faulty PGM-FI system is often related to poorly
connected or corroded connections. Check the
following connections.
Remember, circuit inspection is not a “cure-all” for
other problems in your engine’s PGM-FI system.
Circuit Inspection
(1) MAP sensor connector
(2) ECT sensor connector
(3) TP sensor connector
(4) IAT sensor connector
(5) Injector connector
(6) No.1/No.2 CKP sensor connector
(7) ECM connector
(6)
(1) (5) (7)
(2)
(3)
(4)
CRF450R.book Page 12 Thursday, July 8, 2010 9:34 AM

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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

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