Target Audience:
Owners, mechanics, and enthusiasts of the 1995 Yamaha TZ 125 G1
Value Proposition:
Comprehensive repair guidance to save costs and ensure longevity of the motorcycle
Manual Benefits:
Instant download, printable pages, detailed diagrams, step-by-step instructions
Primary Systems:
General Information, Specifications, Regular Inspection and Adjustment, Engine, Chassis, Electrical, Tuning
Chassis Components:
Front fork (suspension, damping), rear shock absorber (suspension, damping), steering system, wheels, tires, braking systems.
Bodywork:
Fairings, seat, fuel tank, fenders - inspection, removal, and reinstallation.
Exhaust System:
Two-stroke expansion chamber and silencer inspection, maintenance, and potential repair.
Repair Procedures:
Step-by-step instructions for disassembly, assembly, repair, and maintenance
Diagnostic Procedures:
Troubleshooting guides and diagnostic flowcharts
Tuning Procedures:
Carburetor jetting, ignition timing adjustments (if applicable), suspension setup, power valve adjustment.
Troubleshooting Guides:
Systematic troubleshooting for common problems, categorized by symptom.
Detail Level:
Highly detailed exploded pictures and diagrams
Diagnostic Tools:
Manual will likely refer to standard mechanic's tools and potentially specialized tools for Yamaha engines/chassis.
Electrical System:
Wiring diagrams, component testing, ignition system troubleshooting, lighting (if applicable for specific race classes)
Torques Specifications:
All critical bolt and nut torque specifications for engine, chassis, and suspension components are included.
Engine Type:
Two-stroke, single-cylinder, liquid-cooled
Displacement:
124 cc (cubic centimeters)
Cooling System:
Liquid-cooled, with radiator and fan specifications detailed.
Bore X Stroke:
Typically around 56.0 mm x 50.0 mm (exact figures to be confirmed in manual)
Compression Ratio:
Specific ratio will be detailed in the manual, likely in the 8.0:1 to 9.5:1 range for racing two-strokes
Power Output:
Estimated 35-40 hp (at crankshaft), specific figures and power curves may be in manual.
Torque Output:
Specific torque figures will be provided in the manual.
Carburetor Type:
Likely a performance-oriented carburetor, e.g., Mikuni TM series, with specific model and jetting detailed in manual
Fuel Requirement:
Premium unleaded gasoline, often mixed with specific two-stroke oil at a prescribed ratio (specified in manual)
Fuel Tank Capacity:
Typically around 10-12 liters for a 125cc race bike, specific capacity in manual.
Oil Type:
High-quality two-stroke engine oil (specific API or JASO standard and viscosity grade to be confirmed in manual)
Overall Length:
Specification not provided in product info, will be in manual
Overall Width:
Specification not provided in product info, will be in manual
Overall Height:
Specification not provided in product info, will be in manual
Wheelbase:
Specification not provided in product info, will be in manual
Ground Clearance:
Specification not provided in product info, will be in manual
Dry Weight:
Typically around 110-120 kg for this class of race bike, specific value in manual
Wet Weight:
Specification not provided in product info, will be in manual
Payload Capacity:
Not applicable for a racing motorcycle.
Safety Standards:
As a competition motorcycle, standard road safety ratings do not apply. Focus is on mechanical integrity and performance.
Braking System Front:
Hydraulic disc brake, with specific caliper and disc size detailed in manual
Braking System Rear:
Hydraulic disc brake, with specific caliper and disc size detailed in manual
Frame Type:
Aluminum twin-spar frame (common for racing bikes of this era), specific details in manual
Oil Change Interval:
Specific intervals for engine and transmission oil will be detailed in the manual, often based on operating hours for racing bikes.
Spark Plug Replacement:
Recommended replacement intervals based on usage and plug type will be in the manual.
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment intervals are critical and will be covered.
Coolant Type:
Ethylene glycol-based coolant, with specific mix ratio and capacity detailed in manual.
Brake Fluid Type:
DOT 4 or DOT 5.1 hydraulic brake fluid (specific recommendation in manual).
Fork Oil Type:
Specific viscosity grade and quantity for front fork oil will be detailed in the manual.
Common Wear Items:
Piston rings, clutch plates, crank seals, exhaust power valve components are typical wear items for high-performance two-strokes. Manual will detail inspection and replacement.
Carburetor Tuning:
Proper jetting and tuning are critical for performance and reliability; manual provides guidance.
Engine Rebuild:
The manual will cover procedures for top-end and potentially bottom-end engine rebuilds, including torque specifications.
Yamaha Motorcycles:
Yamaha has a rich history in Grand Prix racing and performance motorcycles, with the TZ series being iconic.
Tz Series:
The TZ series represents Yamaha's dedication to road racing, evolving from earlier models with continuous performance improvements.
Manufacturing Location:
Japan (typical for Yamaha production)
Production Period:
The TZ 125 was produced for many years, with the 1995 model being part of a specific generation.
