Category:
Competition Motocross Motorcycle
Competitors:
KTM 85 SX, Yamaha YZ85, Honda CR85R, Kawasaki KX85
Target Audience:
Junior motocross riders, mechanics, and DIY enthusiasts
Years Covered:
2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Type:
Workshop Service Manual
Engine:
Complete engine disassembly, assembly, troubleshooting, and overhaul
Transmission:
Gearbox disassembly, assembly, inspection, and repair procedures
Suspension:
Front fork and rear shock absorber service, adjustment, and component replacement
Brakes:
Front and rear brake system maintenance, caliper service, and bleeding procedures
Electrical:
Ignition system, lighting, wiring diagrams, and troubleshooting
Cooling System:
Liquid cooling system components, radiator, and water pump service
Fuel System:
Carburetor service, adjustment, and fuel tank maintenance
Frame And Bodywork:
Chassis inspection, handlebars, footpegs, and body panel removal/installation
Maintenance:
Scheduled maintenance, oil changes, filter replacements, and general upkeep
Troubleshooting:
Diagnostic procedures for common issues, electrical faults, and performance problems
Repair:
Detailed step-by-step repair instructions for all major components
Disassembly Assembly:
Comprehensive guides for taking apart and putting back together vehicle systems
Adjustments:
Carburetor adjustments, clutch adjustments, and other critical settings
Special Tools:
Identification and usage instructions for specialized service tools
Depth:
Comprehensive, covering everything from basic maintenance to complete engine rebuilds
Type:
2-stroke, liquid-cooled
Bore X Stroke:
48.0 mm x 46.8 mm (typical for RM85)
Horsepower:
Approximately 20-22 HP (estimated, varies by year and specific tune)
Torque:
Approximate torque figures not readily available but significant for class
Carburetor:
Mikuni VM28SS (typical for this era RM85)
System:
Premix oil/fuel, automatic oil injection (may vary by specific market/tune)
Oil Change Frequency:
Refer to the manual's periodic maintenance chart; typically after every few riding hours for off-road use.
Engine Oil:
Suzuki recommends specific 2-stroke premix oils; consult manual for precise specifications and ratios.
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors; refer to manual for specific type and mixture.
Transmission Oil:
Refer to the manual for the specific Suzuki gear oil recommendation (e.g., SAE 80 API GL-4).
Common Wear Items:
Piston, piston rings, clutch plates, and air filter are common wear items requiring regular inspection and replacement.
Carburetor Tuning:
Carburetor tuning can be sensitive to altitude and temperature changes; requires careful adjustment.
Air Filter Cleaning:
Crucial to keep the air filter clean and properly oiled to prevent engine damage.
Chain And Sprockets:
Regular cleaning, lubrication, and tension adjustment are vital for drivetrain longevity.
Importance:
The manual provides critical torque specifications for all fasteners to ensure proper assembly and prevent component failure.
Suzuki Legacy:
Suzuki has a strong heritage in motocross, with successful models like the RM series dating back decades.
Rm85 Development:
The RM85 succeeded the popular RM80, offering updated styling, improved performance, and a more competitive chassis.
Manufacturing Location:
Primarily Japan (Suzuki Motor Corporation)