Model Variant:
YSF200, YFS200P, YFS200R, YFS200S, YFS200T, YFS200SEV, YFS200V, YSF200 (U-A)
Product Name:
2002-2006 Yamaha Blaster YSF200 Repair Manual
Chassis Code:
YSF200, YFS200 series
Positioning:
Essential maintenance and repair guide for owners and technicians of the Yamaha Blaster YSF200, a popular entry-level sport ATV known for its affordability and ease of modification.
Competition:
Competes with similar models from Honda (e.g., TRX250X/EX), Suzuki (e.g., LT-Z250), and Kawasaki (e.g., KSF250 Mojave) in the recreational ATV market. This manual provides Yamaha-specific insights.
Features:
Instantly downloadable, no special software required, printable, permanent access upon download, covers all aspects of repair and maintenance.
Model Coverage:
All Blaster models including YSF200, YFS200P, YFS200R, YFS200S, YFS200T, YFS200SEV, YFS200V, YSF200 (U-A)
Estimated Page Count:
Varies by specific edition, typically 200-400 pages for comprehensive factory service manuals.
Type:
Factory Service Manual / Repair Manual
Format:
Digital Downloadable (PDF)
Engine:
Complete engine disassembly, inspection, repair, and assembly.
Fuel System:
Carburetor (Mikuni VM26SS or similar) diagnosis, cleaning, adjustment, and rebuilding; fuel pump, fuel lines, and tank maintenance.
Cooling System:
Air cooling system principles and maintenance (no liquid cooling on Blaster).
Transmission:
Gearbox maintenance, clutch operation and adjustment, transmission fluid changes.
Final Drive:
Chain drive maintenance, lubrication, adjustment, and sprocket replacement.
Body And Frame:
Frame inspection, body panel removal/installation, seat, fenders, and handlebars.
Steering And Suspension:
Front and rear suspension systems, shock absorbers, A-arms, steering linkage, bearing maintenance.
Brakes:
Front and rear hydraulic brake systems, caliper service, master cylinder, brake fluid bleeding, pad replacement.
Electrical:
Ignition system, lighting, starter system, battery maintenance, fuses, switches, and electrical component testing.
Wiring Diagrams:
Detailed electrical wiring schematics for all systems.
Maintenance:
Regular scheduled maintenance, inspections, lubrication, and fluid checks.
Troubleshooting:
Diagnostic procedures for common problems, symptom-based troubleshooting guides.
Repair:
Step-by-step instructions for component removal, installation, and repair.
Rebuilds:
Complete engine and carburetor rebuild procedures.
Specifications:
Torque values, clearances, fluid capacities, and other critical technical data.
Depth:
Comprehensive, covering everything from basic checks to full engine overhauls and electrical diagnostics.
Type:
2-stroke, reed valve, air-cooled
Bore X Stroke:
66.0 mm x 57.0 mm
Ignition:
CDI (Capacitor Discharge Ignition)
Horsepower:
Approximately 17-18 HP (varies slightly by year and tuning)
Torque:
Approximately 15-16 lb-ft
Carburetor Model:
Mikuni VM26SS (or equivalent)
Fuel Type:
Unleaded gasoline (87 octane recommended)
2-Stroke Oil Mix:
Premix (specific oil-to-gas ratio detailed in manual, typically 50:1 for Yamalube 2R or equivalent).
Type:
Constant mesh, 6-speed sequential
Optional Types:
N/A (all models use the 6-speed manual)
Clutch:
Wet, multi-plate, manual clutch operation
Final Drive:
O-ring sealed chain drive
Transmission Oil Type:
Yamaha Motorcycle Gear Oil SAE 80 API GL-4 (or equivalent)
Transmission Oil Capacity:
Approx. 0.8 liters (0.85 US qt)
Overall Length:
Approx. 1710 mm (67.3 in)
Overall Width:
Approx. 1070 mm (42.1 in)
Overall Height:
Approx. 1015 mm (40.0 in)
Dry Weight:
Approx. 127 kg (280 lbs)
Curb Weight:
Approx. 136 kg (300 lbs)
Weight Distribution:
Evenly balanced for stability, specifics detailed in manual.
Safety Certification:
Meets ANSI/SVIA 1-2001 and 1-2010 standards for recreational ATVs.
Brakes:
Hydraulic disc brakes front and rear.
Throttle Limiter:
Adjustable thumb throttle with limiter (often used for beginner settings).
Frame Design:
Durable steel frame for rider protection.
Footwells:
Wide, integrated footwells with heel guards for rider protection.
Oil Change:
Every 10-20 hours of operation or annually, depending on usage.
Air Filter:
Clean every 10-20 hours, replace as needed.
Spark Plug:
Inspect every 10-20 hours, replace at recommended intervals (e.g., 100 hours).
Chain Lubrication Adjustment:
Lubricate every 10 hours, adjust chain slack as needed.
Brake Fluid:
DOT 3 or DOT 4 brake fluid (refer to manual for specific type).
Coolant:
Not applicable (air-cooled engine).
Carburetor Fouling:
Common with 2-stroke engines, requires regular cleaning and proper fuel/oil mix.
Clutch Wear:
Clutch plates can wear over time with aggressive riding; adjustment and replacement are covered.
Suspension Bushings:
Bushings in A-arms and suspension components can degrade, leading to play.
Comprehensive Schedule:
The manual provides a detailed initial and periodic maintenance schedule covering all aspects of the ATV.
Manufacturer:
Yamaha Motor Corporation, a leading Japanese manufacturer of motorcycles, marine products, and other motorized vehicles.
Development:
The Blaster (YSF200/YFS200) was introduced in 1988 and remained largely unchanged throughout its production run, a testament to its effective and simple design. It was a foundational model in the sport ATV segment.
Production Years:
1988-2006
Manufacturing Location:
Primarily Japan, with some assembly potentially occurring in other regions.