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Yamaha TZ125 TZ125G1 1990-2005 Workshop Service Manual PDF Download

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Basic Information Identification Make: Yamaha Model: TZ125G1 Production Years Covered: 1990-2005 Codes Manual Code: Not Specified Introduction Market Position Segment: Performance Racing Motorcycle Usage: Track days, club racing, high-performance riding....
Tipo: Marine
Proveedor:
SKU: 56705
Etiquetas: Sterndrive Yamaha
Yamaha TZ125 TZ125G1 1990-2005 Workshop Service Manual PDF Download
Basic Information
Identification
Make: Yamaha
Model: TZ125G1
Production Years Covered: 1990-2005
Codes
Manual Code: Not Specified
Introduction
Market Position
Segment: Performance Racing Motorcycle
Usage: Track days, club racing, high-performance riding.
Competitive Analysis
Competitors 125Cc Class: Honda RS125, Aprilia RS 125 (though TZ is more track-focused).
Key Features
Engine Type: High-revving two-stroke, liquid-cooled, single-cylinder.
Chassis Design: Lightweight, race-bred chassis for exceptional handling.
Tuning Potential: Designed for extensive tuning and modification for racing.
Suspension: High-performance adjustable front forks and rear shock absorber.
Manual Details
Coverage Areas
Primary Coverage: Workshop Service and Repair
Secondary Coverage: Periodic Maintenance, Troubleshooting, Overhaul Procedures, Wiring Diagrams
Page Count
Estimated Page Count: Hundreds (as per description)
Manual Type
Type: Workshop Service Manual / Repair Manual
Language
Language: English
Format
Format: PDF Download
Manual Coverage
Systems Covered
Engine System: Complete engine overhaul, tuning, carburetor, ignition system, cooling system (if applicable), lubrication.
Transmission System: Gearbox inspection, maintenance, repair, clutch operation.
Chassis System: Frame inspection, suspension (front and rear), steering, wheels, tires.
Electrical System: Wiring diagrams, lighting, ignition, charging system, battery, instrumentation.
Braking System: Brake caliper, master cylinder, brake lines, fluid replacement, adjustments.
Bodywork And Trim: Fairings, body panels, seat, controls, exhaust system.
Carburetor System: Detailed breakdown, adjustment, cleaning, and jetting information for Mikuni carburetors.
Fuel System: Fuel tank, lines, fuel cock, carburetor.
Procedures Included
Maintenance: Regular scheduled maintenance, oil changes, filter replacements, chain adjustment, spark plug service.
Troubleshooting: Diagnostic procedures for common and uncommon faults, symptom-based solutions.
Repair: Step-by-step instructions for component disassembly, repair, and reassembly.
Overhaul: Detailed procedures for engine, gearbox, and other major component rebuilds.
Engine Tuning: Information on port timing, exhaust modifications, and ignition curve adjustments.
Diagnostics: Systematic diagnosis of electrical and mechanical faults.
Technical Depth
Depth: Comprehensive, suitable for professional technicians and advanced DIY enthusiasts.
Detail Level: Detailed diagrams, torque specifications, clearances, adjustment procedures.
Manual Specifications
File Format
Format: PDF
Requirements: Adobe PDF Reader, WinRAR
Compatibility: All Versions of Windows & Mac
Print Quality
Printability: Full Printable
Zoom Capability: YES (Zoom IN/OUT)
Binding Type
Binding: Digital Download (Printable)
Paper Type
Paper Type Suggestion: Not Applicable (Digital)
Engine Specifications
Primary Engine
Engine Type: Liquid-cooled, 2-stroke, reed valve induction, single-cylinder
Bore X Stroke: Typically around 56 mm x 50.7 mm (subject to specific TZ125 variant evolution).
Displacement: 124 cc
Compression Ratio: Variable, typically high for racing (e.g., 10.0:1 or higher).
Cooling System: Liquid-cooled
Performance
Horsepower: Estimated 30-40+ HP (depending on year, tuning, and exhaust).
Torque: Not typically the primary focus for this class, but significant at high RPM.
Fuel System
Carburetor: Mikuni VM series (e.g., VM28SS or similar high-performance variant).
Fuel Type: High-octane gasoline, often mixed with two-stroke oil.
Ignition System
Ignition: CDI (Capacitor Discharge Ignition), often with adjustable timing.
Transmission
Standard
Type: 6-speed constant mesh
Optional
Features: Close-ratio gear sets for optimal track performance.
Features
Clutch Type: Wet, multi-plate
Dimensions
Exterior
Length: Approximately 1915 mm (varies slightly by year).
Width: Approximately 690 mm (varies slightly by year).
Height: Approximately 1050 mm (varies slightly by year).
Weights
Dry Weight: Around 90-95 kg (highly dependent on year and specific race configuration).
Fuel Capacity: Approximately 9.5 - 10.5 Liters.
Safety Features
Ratings
Classification: Competition Motorcycle (not street legal in most configurations).
Active Features
Handling: Designed for extreme lean angles and precise control.
Passive Features
Frame Construction: Lightweight aluminum alloy frame for rigidity and mass centralization.
Technology Features
Infotainment
Features: Basic instrumentation focused on essential riding information (tachometer, speedometer, temperature).
Driver Assistance
Features: None (This is a pure racing machine).
Connectivity
Features: None.
Maintenance
Service Intervals
Oil Change: After every few race sessions or as specified for track use (pre-mix or oil injection system).
Spark Plug: Regularly inspected and replaced based on plug type and usage.
Chain Adjustment: Frequent checks and adjustments required due to high performance.
Engine Rebuild: Typically performed after a set number of race hours or performance degradation.
Fluid Specifications
Coolant: High-quality motorcycle-specific coolant with anti-corrosion additives.
Transmission Oil: Yamaha's recommended 2-stroke transmission oil or equivalent.
Brake Fluid: DOT 4 or DOT 5.1, depending on specific brake system requirements.
Premix Ratio: Specific ratio for two-stroke oil to gasoline as per manual or manufacturer recommendation.
Known Issues
Two Stroke Tuning: Sensitivity to fuel quality, jetting, and environmental conditions.
Clutch Wear: Can experience rapid wear under aggressive track use.
Engine Seals: Regular inspection and replacement of crank seals are crucial.
Vehicle History
Brand Heritage
Yamaha Racing Legacy: Yamaha has a long and illustrious history in Grand Prix motorcycle racing, with the TZ series being a cornerstone of their 125cc and 250cc efforts.
Model Evolution
Tz Lineage: The TZ125 evolved from earlier Yamaha racing designs, becoming a dominant force in its class for many years.
Production
Manufacturing Location: Japan
Production Duration: The TZ125 model line spanned several decades, with the G1 designation representing a specific period of its development.
Awards & Recognition
Recognitions
Racing Success: The TZ125 platform has a long history of championship wins and podium finishes in various national and international 125cc racing series.
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