🏷️ Basic Information

Make:

Yamaha

Model:

TW200

Year:

1987

Chassis Code:

TW200-4CS

👋 Introduction

Description:

The Yamaha TW200, introduced in the mid-1980s, carved out a niche as a go-anywhere dual-sport motorcycle. Known for its distinctive fat rear tire, it offered a unique blend of trail capability and street usability. This manual is essential for owners seeking to maintain and repair their classic TW200, ensuring longevity and optimal performance.

Competitors:

Competed with other small-displacement dual-sport or trail bikes, though its unique tire setup gave it a distinct advantage in certain soft terrain conditions. Examples include Kawasaki KLR250, Suzuki DR200, Honda XR250L (though the TW200 often targeted a more casual rider).

Vehicle Key Features:

Fat rear tire for excellent traction in sand/mud, torquey engine, simple and robust design, lightweight and maneuverable.

📋 Manual Details

Primary Coverage:

Service and Repair

Secondary Coverage:

Maintenance, Troubleshooting, Adjustments

Estimated Page Count:

Approximately 200-300 pages (typical for this era/type of manual)

Type:

Factory Service Manual

Language:

English

Format:

Likely Printed/Paper (original), PDF (digital reproduction)

📖 Manual Coverage

Engine:

Complete overhaul, disassembly, assembly, inspection, timing, valve adjustment

Carburetion:

Carburetor identification, disassembly, cleaning, adjustment, jetting, synchronization

Chassis:

Frame, suspension (front forks, rear shock), steering, wheels, tires, brakes (front and rear drum/disc), swingarm, bearings

Electrical:

Ignition system, lighting, charging system (stator, rectifier/regulator), battery, wiring diagrams, switches, fuses

Maintenance:

Oil changes, filter replacements, spark plug service, air filter cleaning, chain adjustment, lubrication points, brake pad inspection/adjustment

Troubleshooting:

Diagnostic procedures for common starting issues, running problems, electrical faults, performance issues, based on symptoms

Repair:

Step-by-step instructions for component disassembly, repair, reassembly, and installation

Adjustment:

Carburetor idle/mixture, clutch cable, throttle cable, brake levers, suspension preload

Depth:

Comprehensive: Covers everything from routine maintenance and adjustments to complete engine and chassis rebuilds, including diagnostic procedures.

📊 Manual Specifications

Digital Format:

PDF (searchable text, printable pages recommended)

Print Quality:

High-resolution scans of original factory documentation for clarity of diagrams and text.

Binding:

Original: Staple-bound or paperback. Digital: Accessible on multiple devices.

Paper Type:

Original: Newsprint or standard paper. Digital: Standard electronic document viewing.

⚙️ Engine Specifications

Engine Type:

Four-stroke, SOHC, air-cooled, single-cylinder

Displacement:

196 cc (12.0 cubic inches)

Bore X Stroke:

67.0 mm x 55.7 mm (2.64 in x 2.19 in)

Compression Ratio:

9.5:1

Valve Train:

SOHC, 2 valves

Horsepower:

Approx. 15-17 HP @ 7,500 RPM (Estimate based on similar era bikes)

Torque:

Approx. 12-14 lb-ft @ 5,500 RPM (Estimate)

Fuel Delivery:

Carburetor

Carburetor Model:

Mikuni VM28SS (Typical for this model)

Fuel Tank Capacity:

Approx. 1.7 US gallons (6.4 liters)

Oil Capacity:

Approx. 1.6 US quarts (1.5 liters) with filter change

Recommended Oil Viscosity:

10W-40 (API SG or higher)

Ignition System:

CDI (Capacitor Discharge Ignition)

Cooling Method:

Air-cooled

🔧 Transmission

Transmission Type:

Constant mesh, 5-speed

Clutch Type:

Wet, multi-plate

Final Drive:

O-ring sealed chain drive

Transmission Oil Type:

Yamalube SAE 20W-40 API SE, SF or SG (or equivalent)

Transmission Oil Capacity:

Approx. 0.8 US quarts (0.75 liters)

📐 Dimensions

Overall Length:

Approx. 83.1 inches (2110 mm)

Overall Width:

Approx. 32.3 inches (820 mm)

Overall Height:

Approx. 43.9 inches (1115 mm)

Wheelbase:

Approx. 51.4 inches (1305 mm)

Ground Clearance:

Approx. 8.3 inches (210 mm)

Dry Weight:

Approx. 258 lbs (117 kg)

Wet Weight:

Approx. 275 lbs (125 kg) (Estimated)

Front Tire Size:

2.75-21 4PR (Dunlop or similar)

Rear Tire Size:

180/80-14M/C 6PR (Dunlop Trailmax or similar) - Distinctive 'fat tire'

Front Suspension Type:

Telescopic fork

Front Suspension Travel:

Approx. 6.3 inches (160 mm)

Rear Suspension Type:

Swingarm, single shock absorber (Monoshock)

Rear Suspension Travel:

Approx. 5.5 inches (140 mm)

Front Brake Type:

Drum brake (typically 180mm diameter)

Rear Brake Type:

Drum brake (typically 130mm diameter)

Front Wheel Size:

21 inch

Rear Wheel Size:

14 inch

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycle, not subject to automotive crash testing standards of the era)

Braking System:

Dual drum brakes, requiring rider input for effective stopping.

Lighting:

Headlight, taillight, brake light, turn signals (standard for road legality).

Visibility:

Mirrors, reflectors (standard).

💡 Technology Features

Infotainment System:

N/A (This is a 1987 motorcycle; infotainment systems were not applicable.)

Driver Assistance Systems:

N/A (Motorcycle without electronic rider aids.)

Connectivity Features:

N/A (No electronic connectivity features.)

🔧 Maintenance

Engine Oil Change:

Every 3,000 km (1,860 miles) or 6 months

Air Filter Cleaning:

Every 1,000 km (620 miles) or 3 months

Spark Plug Service:

Inspect every 3,000 km (1,860 miles), replace as needed

Valve Clearance Check:

Every 6,000 km (3,720 miles) or 12 months

Chain Cleaning Lubrication:

Every 500 km (310 miles) or after riding in wet/dusty conditions

Brake System Inspection:

Every 3,000 km (1,860 miles)

Fork Oil Type:

Yamaha No. 10 (or SAE 10W)

Fork Oil Quantity:

Approx. 237 cc (8.0 oz) per fork leg

Common Wear Items:

Clutch plates, brake shoes/pads, fork seals, carburetor jets due to age and use.

Electrical Components:

CDI unit and rectifier/regulator can be prone to failure over time; wiring harnesses may degrade.

Carburetor Performance:

Can become clogged with debris or varnish if not maintained, leading to poor running conditions. Carburetor sync might be required periodically.

Rear Shock ABSorber:

May lose damping effectiveness with age and mileage, potentially requiring rebuild or replacement.

📚 Vehicle History

Heritage:

Yamaha Motor Company, Ltd. is a Japanese manufacturer of motorcycles, marine products, and other motorized products. Founded in 1955, Yamaha has a long-standing reputation for innovation, performance, and reliability in the powersports industry.

Model Introduction:

The TW200 was introduced to the North American market in 1987. It built upon Yamaha's experience with off-road and dual-sport motorcycles, differentiating itself with its signature wide rear tire, designed to provide superior flotation and traction on loose surfaces.

Model Lifespan:

The TW200 had a continuous production run from 1987 through 2001 in North America. It was later reintroduced as the TW200E with minor updates, and the TW225 was produced for other markets.

Manufacturing Location:

Japan

🏆 Awards & Recognition

Model Recognitions:

While not typically receiving formal 'awards' in the automotive sense, the TW200 is widely recognized among enthusiasts for its unique capabilities and enduring simplicity. It has cultivated a dedicated following for its off-road prowess, particularly in sand and soft terrain.