2007-2008 Honda CRF450R Service Manual

Comprehensive repair and maintenance guide for 2007-2008 Honda CRF450R. Covers all systems, diagnostics, and specifications. PN 07SM2-MBN-2007

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Document Details

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Document Number / Seller:
26081 / Kenneth Williams
File Size:
44.20 MB
File Type:
PDF
Language:
Pages:
394
Printable:
Yes
Category:
Motorbike
Last updated / verified
Dec 2, 2025

Models Covered & Key Technical Specifications

2007-2008 Honda CRF450R Service Manual

Service and repair procedures | Technical Handbook Unit

  • General Specifications: Includes overall length of 2,191 mm for standard models.
  • Engine Specifications: Features a bore and stroke of 96.0 x 62.1 mm for optimal performance.
  • Fuel Tank Capacity: Holds 7.2 liters (1.90 US gal) for extended operation.
  • Cooling System Capacity: Uses 1.03 liters (1.09 US qt) of coolant at change.
  • Cylinder Compression: Standard 539 kPa (5.5 kgf/cm², 78 psi) at 600 rpm.
  • Valve Clearance (Intake): 0.16 ± 0.03 mm ensures proper valve function.

Professional Workshop Service Manual & Technical Specifications

2007-2008 Honda CRF450R Service Manual: Honda Precision Service: CRF450R Engine-Compendium

Performance-Values: 394 Pages // Application-Range: Motorcycle / CRF450R Logic // System-Identifier: Engine, Fuel, Cooling, Clutch, Suspension, Electrical, and more.

Technical units are distributed across the following main sections: Engine, Fuel System, Cooling System, Clutch, Kickstarter, Gearshift Linkage, and more.

This manual documents torque specifications for engine mounting nuts to ensure proper joint separation prevention.

Service procedures are documented for transmission oil replacement, clutch lever adjustment, and carburetor tuning for specific conditions.

Drivetrain specifications are addressed in detail, including clutch operation and transmission gear ratios.

Reassembly procedures are specified for the cylinder head, including valve guide installation and measurement.

Service intervals are documented for items like spark plugs and air filters to maintain peak operating condition.

Component locations are identified for key systems, aiding in efficient maintenance and repair workflows.

Service procedures are documented for the carburetor, including major adjustments for temperature and altitude.

FAQ

What **tools** are required for adjustment procedures? keyboard_arrow_down

12 N-m torque is needed for cam chain tensioner bolt, and a variety of specialized tools like valve spring compressors and drivers are detailed for engine disassembly and reassembly.

Identify the **critical** pressure specifications for the cooling system. keyboard_arrow_down

Radiator cap relief pressure must be between 108 - 137 kPa (1.1 - 1.4 kgf/cm², 16 - 20 psi) to ensure optimal cooling system performance.

What **procedures** are required for assembly sequence related to the cylinder head? keyboard_arrow_down

12 N-m torque is required for breather plate bolts during cylinder head assembly, ensuring proper sealing and component alignment.

Determine the **specified** service interval parameters for the engine oil. keyboard_arrow_down

Engine oil should be changed at least every six races or 15 hours of operation to ensure consistent performance and maximum service life.

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Reviews (3)

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The manual is very detailed and easy to follow. I had a few questions, and their support team responded almost immediately! Great service!
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Rated 5 out of 5 stars
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This manual is a must-have for maintaining my bike. The download process was smooth and I received the link quickly. Highly recommend!