Segment:
High-performance sport ATV (All-Terrain Vehicle)
Target Audience:
Enthusiasts, racers, and owners seeking to maintain and repair their YFZ350 Banshee.
Key Rivals Era:
Suzuki LT250R, Honda TRX250R, Kawasaki Tecate-4
Legendary Status:
The YFZ350 Banshee is renowned for its powerful two-stroke engine, exceptional performance, and long production run.
Manual Value Proposition:
Provides essential knowledge for owners to keep this iconic performance machine running optimally, reducing reliance on expensive dealer service.
Applicable Years:
1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Estimated Pages:
Varies by edition, typically 300-500+ pages for comprehensive coverage
Type:
Workshop Service Repair Manual
Engine:
Top-end rebuild, bottom-end rebuild, cooling system, lubrication, tuning, carburetor adjustment, ignition system, exhaust system
Transmission:
Clutch, gearbox (shifting mechanism, gears, bearings), final drive (chain and sprockets)
Suspension:
Front suspension (forks, springs, damping), rear suspension (swingarm, shock absorber, linkage, bearings)
Brakes:
Front and rear hydraulic disc brake systems, master cylinders, calipers, brake lines, bleeding procedures
Electrical:
Wiring diagrams, lighting system, ignition system, battery, starter motor, charging system, fuses, switches
Chassis And Bodywork:
Frame, handlebars, steering system, wheels, tires, body panels, seat, footpegs, fuel tank, fenders
Routine Maintenance:
Oil changes (2-stroke premix), chain lubrication and adjustment, air filter cleaning/replacement, spark plug inspection/replacement, brake fluid checks
Repair Procedures:
Engine disassembly and reassembly, transmission overhaul, suspension component replacement, brake caliper rebuild, carburetor cleaning and tuning, electrical component diagnosis and replacement
Troubleshooting:
Diagnostic charts for common starting issues, running problems, electrical faults, and performance issues
Specifications And Data:
Torque specifications, clearances, fluid capacities, jetting recommendations, electrical resistance values
Depth:
Comprehensive from basic user maintenance to full engine and drivetrain rebuilds, including electrical system diagnosis.
File Type:
PDF (Portable Document Format)
Searchability:
Text-searchable, allowing for quick location of specific information
Print Readability:
Designed for clear viewing on screen and print, often includes high-resolution diagrams and photos
Binding:
N/A (Digital Download - PDF)
Paper Quality:
N/A (Digital Download - PDF)
Engine Type:
Liquid-cooled, 2-stroke, 2-cylinder, reed valve inducted
Bore X Stroke:
64.0 mm x 54.0 mm
Compression Ratio:
6.6:1 (varies slightly by year)
Ignition:
CDI (Capacitor Discharge Ignition)
Horsepower Estimate:
Approximately 45-50 HP (stock, varies by year and tuning)
Torque Estimate:
Approximately 30-35 lb-ft (stock, varies by year and tuning)
Carburetors:
Dual Mikuni VM26SS (or similar depending on year)
Fuel Type:
Unleaded gasoline (octane rating specified in manual, typically 91+)
Fuel Mixture:
Pre-mix (50:1 or 100:1 ratio of 2-stroke oil to gasoline, specified in manual)
Type:
6-speed manual, constant mesh
Clutch:
Wet, multiple disc, cable-operated
Reverse:
Included (on most models)
Final Drive:
O-ring sealed chain drive
Length Estimate:
Approximately 70-73 inches
Width Estimate:
Approximately 46-49 inches
Height Estimate:
Approximately 42-44 inches
Dry Weight Estimate:
Approximately 360-380 lbs
Fuel Capacity:
Approximately 2.5 - 3.0 gallons
Atv Safety Considerations:
ATVs are specialized vehicles; proper training, protective gear, and adherence to safe riding practices are paramount. Manual will cover safety warnings and precautions.
Braking System:
Hydraulic disc brakes front and rear for strong stopping power.
Chassis Design:
Sturdy frame providing a stable platform.
Engine Oil Level Check:
Check before every ride
Air Filter Cleaning:
As needed, depending on riding conditions (refer to manual for specifics)
Spark Plug Inspection:
Every 100-200 hours or as recommended in manual
Chain Lubrication Adjustment:
Every 20-30 hours or after washing/wet riding
2-Stroke Oil:
High-quality 2-stroke synthetic or semi-synthetic motorcycle oil meeting specific JASO FD or ISO-L-EGD standards (refer to manual for exact specifications).
Coolant:
Permanent type antifreeze coolant (50/50 mix with distilled water). Refer to manual for specific type and capacity.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid (refer to manual for exact specification).
Gear Oil Capacity:
Approximately 0.8 L of API GL-4 SAE 80 hypoid gear oil (refer to manual for exact specification and change interval).
Carburetor Tuning:
Can be sensitive to altitude and temperature changes; requires precise jetting and adjustment for optimal performance. Manual provides detailed procedures.
Top End Wear:
Due to the high-revving nature of the 2-stroke engine, regular top-end maintenance (piston, rings, cylinder) is crucial. Manual details rebuild procedures.
Clutch Wear:
Clutch wear can be accelerated with aggressive riding. Manual covers clutch inspection, adjustment, and replacement.
Yamaha Atv Legacy:
Yamaha has a long and successful history in ATV development, known for performance and reliability.
Banshee Development:
The YFZ350 Banshee was introduced as a high-performance successor to earlier Yamaha sport ATVs, quickly becoming a dominant force in racing and recreational riding.
Production Run:
1987-2006 (with significant updates throughout the early years, this manual covers the 1987-2003 era).
Key Updates Era:
Included chassis refinements, suspension improvements, and engine tuning updates over its initial production life covered by this manual.
