Category:
Performance Motocross Motorcycle
Target Audience:
Motocross racers, performance enthusiasts, motorcycle mechanics
Competitors:
Yamaha YZ250F, Honda CRF250R, Kawasaki KX250F
Chassis Design:
Advanced aluminum frame for optimal rigidity and light weight
Suspension Technology:
High-performance Showa suspension components tuned for aggressive riding
Engine Tuning:
Designed for strong low-end torque and broad powerband
Engine Mechanical:
Complete tear down and rebuild procedures, component identification, cylinder head, piston, crankshaft, connecting rod, lubrication system, cooling system
Engine Electrical:
Ignition system, charging system, starting system, CDI unit, sensors
Fuel System:
Carburetor (Keihin FCR MX37), fuel delivery, fuel tank, fuel lines
Transmission:
Gearbox disassembly and reassembly, shift mechanism, clutch operation
Chassis Suspension:
Front fork (Showa 47mm USD), rear shock absorber (Showa), linkage system, steering system
Brakes:
Front and rear brake systems, hydraulic lines, calipers, master cylinders, rotors, brake pad replacement
Wheels Tires:
Wheel bearing maintenance, tire mounting, spoke tensioning
Bodywork:
Plastics, seat, graphics, fender removal and installation
Lubrication Fluid Systems:
Engine oil, gearbox oil, coolant, chassis lubrication points
Scheduled Maintenance:
Oil changes, filter replacements, chain adjustment, spark plug service, air filter cleaning
Troubleshooting:
Diagnostic flowcharts, common problems and solutions, electrical diagnostics
Disassembly Reassembly:
Full engine overhaul, suspension rebuild, clutch service, carburetor tuning
Technical Adjustments:
Carburetor jetting, valve clearance adjustment, suspension sag adjustment, chain slack adjustment
Depth Level:
Comprehensive (from basic maintenance to full engine rebuilds)
Visual Aids:
High-quality images, detailed part diagrams
Technical Data:
Torque specifications, clearances, tolerances, fluid capacities, electrical schematics
Document Type:
Portable Document Format (PDF)
Searchability:
Full text search capability
Print Quality:
High-resolution, printable quality
Digital Features:
Clickable chapter links for easy navigation
Usage Restrictions:
No watermarks, no copy restrictions, no print limitations
Engine Type:
249cc, Liquid-cooled, Four-stroke, Single-cylinder, DOHC
Bore X Stroke:
76.0 mm x 54.9 mm
Compression Ratio:
12.8:1
Horsepower:
Approximately 39-41 HP (estimated at crankshaft, actual may vary)
Torque:
Approximately 18-19 lb-ft (estimated at crankshaft, actual may vary)
Carburetor:
Keihin MXF37 (37mm) flat-slide, single carburetor
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Type:
Wet sump, semi-dry sump with oil reservoir
Type:
Electronic ignition (CDI)
Type:
Constant-mesh 5-speed sequential
Clutch:
Multi-plate, wet, cable-actuated
Gear Ratios:
1st: 2.500, 2nd: 1.867, 3rd: 1.467, 4th: 1.214, 5th: 1.000
Design:
Wide-ratio gear set for versatility across track conditions
Engine Oil Change:
Every 10-15 hours of operation or after rigorous use, check manual for exact specifications.
Air Filter Cleaning:
After every 2-3 rides or when visibly dirty. Use specified cleaner and oil.
Spark Plug Inspection:
Every 20-30 hours of operation. Check gap and condition.
Chain Adjustment:
Regularly, before each riding session or as needed. Target slack: 20-30 mm.
Valve Clearance:
Every 30-50 hours of operation. Critical for engine performance and longevity.
Engine Oil Type:
SAE 10W-40, API SG or higher, JASO MA certified motorcycle oil.
Engine Oil Capacity:
1.0 L (1.06 US qt) without filter change, 1.1 L (1.16 US qt) with filter change.
Coolant Type:
High-quality permanent type coolant (50% ethylene glycol and 50% deionized water).
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Carburetor Tuning:
Can be sensitive to altitude and temperature changes, requiring careful jetting for optimal performance.
Clutch Wear:
Aggressive riding can lead to accelerated clutch plate wear. Regular inspection and adjustment are recommended.
Suspension Maintenance:
Proper fork seal maintenance and shock absorber service are crucial for maintaining optimal damping and preventing leaks.
Motorcycle Legacy:
Suzuki has a long and successful history in motocross racing, known for innovative designs and competitive performance.
Rm-Z Development:
The RM-Z line evolved from Suzuki's highly successful RM (two-stroke) lineage, adapting to the growing popularity and performance advantages of four-stroke motocross bikes.
K8 Updates:
The K8 model (2007) represented a significant refinement of the RM-Z250 platform, building on previous years' feedback and technological advancements.
Manufacturing Origin:
Japan
