Market Niche:
Competition motocross bike for junior riders, known for its powerful engine and agile handling.
Competitors:
Yamaha YZ85, Suzuki RM85, KTM 85 SX.
Vehicle Focus:
Performance-oriented motocross machine designed for competitive racing.
Manual Advantage:
Provides detailed, step-by-step instructions and technical data to enable accurate and efficient maintenance and repair.
Engine:
Complete overhaul, disassembly, assembly, adjustments, troubleshooting, specifications, lubrication.
Cooling System:
Radiator, hoses, water pump inspection and service.
Fuel System:
Carburetor disassembly, cleaning, adjustment, fuel tank, fuel lines.
Ignition System:
Spark plug, CDI unit, ignition timing checks.
Transmission:
Clutch operation, gearbox disassembly, assembly, inspection, lubrication.
Suspension:
Front fork (KYB), rear shock absorber (monoshock), linkage, springs, damping adjustments, service.
Brakes:
Front and rear brake systems, hydraulic lines, calipers, master cylinders, pads, discs, bleeding procedures.
Wheels And Tires:
Wheel bearing inspection, spoke tension, tire pressure recommendations.
Frame And Bodywork:
Frame inspection, body panel removal and installation, seat, handlebars.
Electrical System:
Wiring diagrams, lighting, switches, battery maintenance.
Maintenance:
Regular scheduled maintenance, oil changes, filter replacements, chain adjustment, lubrication points.
Troubleshooting:
Diagnosis of common problems, specific symptom-based troubleshooting guides.
Repair:
Step-by-step repair instructions for all major components and systems.
Disassembly Assembly:
Detailed procedures for taking apart and putting back together vehicle components.
Adjustments:
Carburetor, clutch, brake, suspension, and other system adjustments.
Technical Specifications:
Torque values, clearances, fluid capacities, wear limits, performance data.
Depth:
Comprehensive, from basic maintenance to complete engine and chassis overhauls, suitable for both DIY enthusiasts and professional mechanics.
Quality:
High-quality PDF with clear, printable pages.
Printable:
Yes, all pages are printable.
Binding Type:
Digital (PDF) - Instant Download
Compatibility:
Windows, Mac, Linux OS; requires Adobe Reader.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Bore X Stroke:
48.5 mm x 47.0 mm
Compression Ratio:
10.5:1 (approx.)
Horsepower:
Approximately 23-25 HP (varies slightly by region/tune)
Torque:
Specific torque figures not always published for this class, but strong mid-range power delivery.
Carburetor:
Keihin PWK34 (34mm) flat-slide carburetor
Fuel Type:
Unleaded gasoline (90+ octane recommended) mixed with 2-stroke oil
Premix Ratio:
Typically 32:1 or 40:1 (refer to manual for specific recommendation)
2-Stroke Oil:
Dedicated 2-stroke premix oil
Oil Change Frequency:
Periodic inspection and replacement based on usage (refer to manual for specific hours/conditions).
Air Filter Cleaning:
Frequent cleaning recommended, especially after dusty rides.
Chain Lubrication Adjustment:
Regular checks and adjustment for optimal performance and longevity.
Top End Rebuild:
Recommended based on operating hours or signs of wear (refer to manual for specific intervals).
Coolant:
Mixture of distilled water and anti-freeze (specified type and ratio in manual).
Transmission Oil:
Dedicated motorcycle transmission oil (e.g., SAE 10W-40, API GL-4, consult manual for exact specification).
Brake Fluid:
DOT 4 recommended (ensure manual confirmation).
Common Wear Items:
Piston rings, clutch plates, wheel bearings, brake pads, and fork seals are common wear items on performance motocross bikes.
Carburetor Tuning:
Can be sensitive to altitude and temperature changes, requiring periodic jetting adjustments.
