Target Audience:
Yamaha TY350 Trials owners, mechanics, and restoration enthusiasts seeking detailed technical guidance.
Advantage:
Provides dealership-level repair information, often more detailed and accurate than generic online guides. Instant digital delivery avoids shipping delays.
Delivery Method:
Instant digital download.
Usability:
Printable sections for clean workshop use.
Cost Effectiveness:
Offers significant cost savings compared to physical manuals and dealership service costs.
Covered Systems:
Engine, General Information, Transmission, Chassis, Lighting, Steering, Seats System, Clutch, Suspension, Locks, Brakes, Lubrication, Electrical, Frame, Fuel System, Battery
Estimated Page Count:
Varies by specific manual section, but comprehensive coverage implies a substantial document (typical for full service manuals of this era).
Type:
Service Repair Workshop Manual
Digital Format:
Adobe Acrobat PDF
Engine:
Detailed breakdown of all engine components, including top-end (cylinder, piston, rings, head), bottom-end (crankshaft, connecting rod, bearings), valve train, cooling system (air-cooled specifics), ignition system, and lubrication system.
Transmission:
Complete coverage of the gearbox, clutch assembly (disassembly, inspection, reassembly), gear selection mechanism, and lubrication.
Chassis And Frame:
Frame inspection, welding points, swingarm assembly, pivot points, and general chassis setup.
Suspension:
Front fork (telescopic) disassembly, service, oil replacement, and component inspection. Rear suspension (monoshock or twin shock specifics for the era) service, including shock absorber and linkage maintenance.
Brakes:
Front and rear brake system service, including drum brake or disc brake components (if applicable), hydraulic lines, master cylinders, calipers, and brake shoe/pad replacement. Adjustment procedures.
Electrical System:
Wiring diagrams, lighting system (headlight, taillight, indicators), ignition system components (CDI, coil, stator), battery maintenance, charging system, and troubleshooting common electrical faults.
Fuel System:
Carburetor disassembly, cleaning, adjustment, jetting information, fuel tank inspection, fuel lines, and petcock service.
Steering:
Handlebar assembly, steering stem bearings, fork yokes, and steering head bearing service and adjustment.
Lubrication:
Recommended lubricants, oil change intervals, gearbox oil specifications, and lubrication points throughout the motorcycle.
Maintenance:
Routine maintenance checks, lubrication schedules, filter changes, spark plug replacement, and general upkeep procedures.
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly for all major systems.
Troubleshooting:
Diagnostic procedures for identifying and resolving common problems, including symptoms, causes, and corrective actions.
Adjustments:
Detailed instructions for adjusting clutch, brakes, carburetor, and suspension components.
Torque Specifications:
Crucial torque values for all fasteners to ensure correct assembly and prevent damage.
Depth:
Comprehensive. Covers from basic maintenance to complete engine and transmission rebuilds, including detailed component identification and service procedures.
Engine Type:
Air-cooled, 2-stroke, single-cylinder
Displacement:
Approximately 325cc (actual 323cc)
Bore X Stroke:
64.0 mm x 60.0 mm
Compression Ratio:
Approx. 7.0:1 (static, actual may vary based on condition and tuning)
Ignition:
CDI (Capacitor Discharge Ignition)
Carburetor:
Mikuni VM Series (e.g., VM28SS or similar)
Horsepower:
Estimated 20-25 HP (varies by tuning and model year).
Torque:
Not prominently published, but designed for low-end tractability in trials riding.
Fuel Type:
Unleaded gasoline with 2-stroke oil mixture (ratio specified in manual, typically 50:1 or 100:1 depending on oil quality and manufacturer recommendation).
Fuel Tank Capacity:
Approximately 4.5 - 5.5 liters (refer to specific model documentation for exact figure).
Oil Change Engine:
Refer to manual, typically every 1000-1500 km or annually, with frequent checks for 2-strokes.
Spark Plug Replacement:
Refer to manual, typically every 3000-5000 km, or as needed based on performance.
Air Filter Cleaning:
Frequent checks and cleaning recommended, especially in dusty trials conditions. Refer to manual for specific interval.
Clutch Adjustment:
Periodic checks for proper free play, as per manual specifications.
2 Stroke Oil Mix:
Yamaha 2-Stroke Oil or equivalent high-quality 2-stroke oil, mixed at the ratio specified in the manual (e.g., 50:1 or 100:1).
Fork Oil:
Yamaha Fork Oil or equivalent motorcycle fork oil with specified viscosity (e.g., 5W or 10W). Capacity per leg specified in manual.
Transmission Oil:
API GL-4 SAE 80W/90 gear oil (confirm specific grade in manual).
Carburetor Fouling:
Can be susceptible to fouling from old fuel or improper jetting, requiring regular cleaning and adjustment.
Clutch Wear:
Clutch plates can wear over time, especially with aggressive trials riding. Manual provides wear limits and replacement procedures.
Ignition Component Reliability:
Older CDI units can sometimes fail. Manual aids in troubleshooting ignition system faults.
