Segment:
Entry-level to intermediate sport ATV
Target Audience:
Recreational riders, beginner to experienced ATV enthusiasts
Competitors:
Honda TRX250R, Suzuki LT250R, Kawasaki Mojave 250
Vehicle Appeal:
Lightweight, agile, potent two-stroke engine, accessible price point for its era
Professional Use:
Designed for professional mechanics, ensuring accuracy and completeness
Ease Of Use:
Step-by-step format and clear language for user-friendly repair guidance
Visual Aids:
Includes 'Real Pictures' and exploded diagrams for enhanced clarity
Engine:
Complete engine disassembly, assembly, troubleshooting, and repair
Fuel System:
Carburetor, fuel lines, fuel tank, and petcock maintenance and repair
Ignition System:
CDI unit, spark plug, ignition coil, and wiring diagnostics
Cooling System:
Air-cooled engine specifications and component inspection
Transmission Clutch:
Clutch assembly, operation, adjustment, and repair; gearbox inspection and maintenance
Drivetrain:
Final drive, chain maintenance, sprockets, and rear axle
Suspension:
Front and rear suspension components, shock absorbers, and steering linkage
Brakes:
Hydraulic brake system (front and rear), caliper, master cylinder, brake lines, and pads
Electrical System:
Wiring diagrams, lighting, battery, starter motor, and general electrical component troubleshooting
Frame Chassis:
Frame inspection, welds, and general chassis component checks
Bodywork Plastics:
Fender, plastics, and seat removal and installation
Wheels Tires:
Wheel bearing maintenance, tire pressure specifications
Maintenance:
Regular maintenance checks, lubrication, filter replacement, and adjustments
Troubleshooting:
Comprehensive diagnostic flowcharts and symptom-based troubleshooting guides
Repair:
Detailed step-by-step repair instructions for all major vehicle components
Assembly Disassembly:
Complete procedures for taking apart and reassembling all parts of the ATV
Inspections:
Component inspection guidelines for wear, damage, and proper function
Electrical Diagnostics:
Wiring diagrams and electrical system troubleshooting
Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds
Diagrams:
Exploded diagrams included for each disassembly section to aid identification
Engine Type:
2-stroke, single-cylinder, reed valve, liquid or air-cooled (depending on specific year/variant, typically air-cooled for most YFS200)
Bore X Stroke:
66.0 mm x 57.0 mm
Carburetor:
Mikuni VM26SS (typically)
Ignition:
CDI (Capacitor Discharge Ignition)
Starting System:
Kick starter
Horsepower:
Approximately 20-25 HP (varies by year and tuning)
Torque:
Approximately 15-18 lb-ft (varies by year and tuning)
Fuel Type:
Unleaded gasoline, 91 octane or higher recommended
Fuel Tank Capacity:
Approximately 2.4 US gallons (9 Liters)
Oil Mixing:
2-stroke oil mixed with gasoline at a ratio specified in manual (e.g., 50:1 or 100:1)
Length:
Approximately 68.9 inches (1750 mm)
Width:
Approximately 43.3 inches (1100 mm)
Height:
Approximately 41.9 inches (1065 mm)
Wheelbase:
Approximately 49.2 inches (1250 mm)
Dry Weight:
Approximately 310 lbs (141 kg)
Ground Clearance:
Approximately 4.7 inches (120 mm)
Atv Safety Standards:
Adheres to industry safety standards for ATVs of its era
Throttle Limiter:
Some models may have had adjustable throttle limiters for novice riders (check manual)
Footwells:
Full floorboards with heel guards for rider foot protection
Handlebar Guards:
Standard handlebar design with potential for aftermarket guards
Oil Change:
Refer to manual for specific transmission oil change intervals (typically every 100-200 hours or annually)
Air Filter Cleaning:
Frequent cleaning or replacement recommended based on operating conditions (e.g., every 10-20 hours)
Spark Plug Replacement:
Inspect and replace as needed, typically every 100-200 hours or annually
Chain Lubrication Adjustment:
Lubricate chain every 20-30 hours; adjust tension as per manual specifications
Transmission Oil:
Yamalube 10W-30 or equivalent API SE, SF, SG, SH, SJ service classification (verify with manual for precise type)
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid
2 Stroke Oil:
API-TC, JASO FD, or higher rated 2-stroke engine oil
Carburetor Clogging:
Common with older 2-strokes; requires regular cleaning and proper fuel storage
Clutch Slipping:
Can occur with heavy use or worn clutch plates; clutch adjustment and plate replacement as per manual
Suspension Wear:
Bushings and seals may wear over time, affecting handling; manual provides inspection and replacement guides
Electrical Connection Corrosion:
Common in off-road environments; manual guides in inspection and cleaning of electrical contacts
Yamaha Atv Legacy:
Yamaha has a long history of producing durable and performance-oriented ATVs
Blaster Introduction:
The Blaster was introduced in 1988 as Yamaha's answer to the growing demand for lightweight sport ATVs, offering a fun and accessible experience.
Key Upgrades:
Over its production run, the Blaster received minor updates to suspension, brakes, and styling, but the core platform remained consistent. The manual covers the evolution within the specified years.
Manufacturing Location:
Primarily Japan
