Segment:
Motocross Competition Off-Road Motorcycle
Target Audience:
Motocross racers, performance-oriented off-road riders, mechanics.
Key Competitors:
Yamaha YZ250F, Honda CRF250R, Kawasaki KX250F, KTM 250 SX-F.
Bike Features:
Aluminum frame, liquid-cooled 4-stroke engine, Showa suspension, powerful braking system, strong low-to-mid range torque.
Manual Value:
Essential for maintaining peak performance, ensuring reliability, and performing repairs on the RM-Z250.
Engine Systems:
Engine assembly, disassembly, lubrication, cooling, fuel delivery, ignition, exhaust, engine management (ECU).
Transmission Drivetrain:
Clutch operation, transmission assembly, gears, shift mechanism, chain drive, final drive ratios.
Chassis Suspension:
Frame inspection, front fork (USD Showa), rear shock absorber (linkage system), swingarm, wheel bearings, steering system.
Braking System:
Front and rear hydraulic disc brake systems, brake fluid specifications, caliper maintenance, master cylinder repair, pad replacement.
Electrical System:
Wiring diagrams, ignition system components, lighting, battery maintenance, charging system, ignition coil, spark plug specifications.
Fuel System:
Carburetor (Keihin FCR MX40) tuning and overhaul, fuel tank, fuel lines, fuel filter.
Cooling System:
Radiator, coolant specifications, fan operation (if applicable), hose replacement, thermostat (if applicable).
Maintenance Procedures:
Oil changes, filter replacement, chain adjustment, spark plug inspection/replacement, air filter cleaning, brake bleeding.
Diagnostic Procedures:
Troubleshooting guides for common issues, fault diagnosis for engine and electrical systems, diagnostic codes (if applicable).
Repair Procedures:
Complete engine rebuild, transmission overhaul, suspension fork servicing, brake system repair, electrical component replacement.
Special Tool Requirements:
Identification of specialized tools needed for specific maintenance and repair tasks.
Depth:
Comprehensive, covering basic maintenance to complete engine and chassis overhauls.
Detail Level:
Detailed step-by-step instructions with clear diagrams and torque specifications.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, 4-valve, Single Cylinder
Bore X Stroke:
76.0 mm x 54.9 mm
Compression Ratio:
12.9:1
Horsepower:
Approx. 39 HP (at crankshaft, varies by tuning)
Torque:
Approx. 20 lb-ft (at crankshaft, varies by tuning)
Carburetor Type:
Keihin FCR MX40
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Ignition Type:
Digital CDI
Type:
Constant-mesh 5-speed
Clutch Type:
Wet multi-plate
Options:
N/A (Single transmission option for this model year)
Gear Ratios:
Refer to manual for specific gear ratios (e.g., 1st: 2.538, 2nd: 1.875, 3rd: 1.400, 4th: 1.136, 5th: 0.913)
Safety Ratings:
N/A (Off-road competition vehicle, not subject to road safety regulations)
Braking System:
Hydraulic disc brakes front and rear for superior stopping power.
Suspension:
Tuned Showa suspension provides stability and control under aggressive riding conditions.
Chassis Design:
Sturdy aluminum frame for chassis rigidity and rider confidence.
Engine Oil Change:
Every 10-15 hours of riding, or as recommended in the manual.
Air Filter Cleaning:
After every few rides or more frequently in dusty conditions.
Spark Plug Inspection:
Every 20-30 hours of riding.
Chain Lubrication Adjustment:
Every 5-10 hours of riding.
Engine Oil Type:
SAE 10W-40 API SG or higher, JASO MA compliant motorcycle oil.
Engine Oil Capacity:
1.6 L (1.7 US qt) when filter is changed; 1.4 L (1.5 US qt) without filter change.
Coolant Type:
Permanent type antifreeze coolant mixed with distilled water (50/50 ratio).
Common Wear Items:
Clutch plates, chain and sprockets, brake pads, air filter, fork seals, valve stem seals.
Carburetor Tuning:
Sensitivity to altitude and temperature changes requires proper jetting and adjustment for optimal performance.
Suspension Maintenance:
Regular fork oil changes and seal inspection are crucial for maintaining suspension performance and preventing leaks.
Heritage:
Suzuki has a long and successful history in motocross and off-road racing, known for its powerful and agile machines.
Rmz Evolution 2007 2008:
The 2007-2008 RM-Z250 represented a significant update from previous generations, featuring an all-new aluminum frame, revised engine internals for improved power delivery, and Showa suspension components, solidifying its position as a competitive motocross machine.
Manufacturing Location:
Japan
