Segment:
High-performance motocross/off-road motorcycles
Target Audience:
Motocross racers, off-road enthusiasts, mechanics, DIY repairers
Competitors 2007:
KTM EXC series, Yamaha WR series, Honda CRF-X series, Kawasaki KX-F series, Suzuki RM-Z series
Performance Focus:
Emphasis on engine power delivery, handling, and suspension performance for competitive riding
Manual Utility:
Enables owners to perform all necessary maintenance and repairs, reducing reliance on external workshops.
Engine:
Complete overhaul, component diagnosis, tuning, fuel system, lubrication, cooling
Transmission:
Clutch, gearbox, shift mechanism, lubrication
Chassis:
Frame, suspension (front and rear), steering, wheels, tires, brakes
Electrical System:
Ignition, lighting, charging system, starter, wiring diagrams, sensors
Bodywork:
Fairings, seat, fuel tank, handlebars, footpegs, plastics
Maintenance:
Scheduled service, fluid changes, filter replacement, lubrication points
Troubleshooting:
Diagnostic charts, symptom analysis, common problems and solutions
Number Of Pages:
Hundreds
Type:
Service Repair Manual
Engine Systems:
Top-end rebuild (cylinder head, piston, valves), bottom-end rebuild (crankshaft, connecting rod, bearings), cylinder block, cam timing, valve clearance adjustment
Fuel And Emission Systems:
Carburetor overhaul and adjustment (specific to engine variant), fuel pump, fuel filter, emissions control components
Ignition System:
Ignition coil testing, spark plug specifications, CDI unit diagnosis, timing adjustment
Cooling System:
Radiator maintenance, coolant type and capacity, water pump inspection, thermostat operation
Transmission And Drivetrain:
Clutch operation and adjustment, gear selection linkage, transmission lubrication, chain maintenance and adjustment
Suspension System:
Front fork service (oil change, seal replacement, spring preload), rear shock absorber maintenance, linkage lubrication
Braking System:
Brake fluid type and replacement schedule, caliper overhaul, pad replacement, rotor inspection, bleeding procedure
Electrical And Lighting:
Headlight, taillight, brake light operation, wiring harness inspection, battery maintenance, fuse identification
Frame And Bodywork:
Handlebar removal and installation, seat removal, fuel tank mounting, fender replacement, decal application
Routine Maintenance:
Oil and filter changes, air filter cleaning/replacement, spark plug inspection, chain lubrication, tire pressure checks
Engine Repair:
Complete engine disassembly and reassembly, piston ring replacement, valve stem seal replacement, gasket replacement
Transmission Repair:
Gearbox disassembly and inspection, shift drum and fork alignment, clutch plate replacement
Suspension Rebuild:
Front fork seal and oil replacement, rear shock absorber servicing, linkage bearing inspection and greasing
Brake System Maintenance:
Brake fluid flush and bleed, brake pad and disc replacement, caliper seal replacement
Electrical Diagnostics:
Wiring diagram interpretation, fault finding for ignition and charging systems, component testing
Carburetor Tuning:
Jetting adjustments, idle speed settings, mixture screw adjustments for optimal performance
Troubleshooting Guides:
Step-by-step guides for diagnosing common engine, transmission, and electrical issues
Depth:
Comprehensive (from basic maintenance to full engine rebuild)
Detail Level:
Detailed step-by-step instructions with clear diagrams and specifications
Diagnostic Capability:
Advanced diagnostic procedures for identifying complex faults
Rebuild Scope:
Full component rebuilds, including engine internals, gearbox, and suspension units
Engine Type 250:
Single-cylinder, four-stroke
Engine Type 450:
Single-cylinder, four-stroke
Engine Type 510:
Single-cylinder, four-stroke
Horsepower 250 Approx:
35-40 HP (estimated, varies by tuning)
Horsepower 450 Approx:
45-50 HP (estimated, varies by tuning)
Horsepower 510 Approx:
50-55 HP (estimated, varies by tuning)
Torque Bands:
Designed for strong mid-range and top-end power delivery
Carburetor Type:
Mikuni VM Series (typical for the era, specific model varies)
Fuel Type:
Unleaded gasoline, premium octane recommended
Oil Type:
High-performance motorcycle-specific 4-stroke engine oil (e.g., Motul 300V, Bel-Ray EXS)
Oil Capacity Approx 250:
Approx. 1.5 - 1.7 Liters (check manual for exact)
Oil Capacity Approx 450 510:
Approx. 1.7 - 1.9 Liters (check manual for exact)
Cooling Method:
Liquid-cooled
Coolant Type:
Mixture of distilled water and antifreeze (ethylene glycol-based)
Engine Oil Change Interval:
Every 10-15 hours of riding or annually, whichever comes first (refer to manual for specific usage scenarios)
Air Filter Cleaning Interval:
After every few rides or immediately after dusty conditions
Chain Lubrication Interval:
Every 5-10 hours of riding, or as needed based on conditions
Valve Clearance Check Interval:
Every 20-30 hours of riding (critical for performance and longevity)
Brake Fluid Type:
DOT 4 or DOT 5.1 (check manual for specific recommendation)
Coolant Mixture Ratio:
50/50 distilled water and antifreeze
Common Wear Items:
Clutch plates, piston rings, valve guides, wheel bearings, steering head bearings, fork seals
Carburetor Issues:
Can be prone to clogging if fuel is not kept clean or if the bike sits for extended periods without fuel stabilizer
Electrical System Durability:
Wiring harnesses can be subject to vibration and stress; proper routing and securing are important.