🏷️ Basic Information

Make:

Yamaha

Model:

TT350 / TT350S

Model Codes:

TT350, TT350S

👋 Introduction

Segment:

Dual-sport / Enduro Motorcycle

Competitors:

Honda XR series, Kawasaki KLR series, Suzuki DR series

Attributes:

Reliable air-cooled engine, robust chassis, capable off-road performance with street legality

📋 Manual Details

Applicable Years:

1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Complete engine overhaul, tuning, troubleshooting, component identification, specifications

Transmission:

Gearbox inspection, repair, clutch service, shift mechanism, lubrication

Fuel System:

Carburetor disassembly, cleaning, adjustment, fuel pump, fuel lines, tank maintenance

Electrical System:

Ignition system, stator, CDI unit, lighting, wiring diagrams, battery service, starting system

Suspension:

Front forks (telescopic), rear monoshock, linkages, adjustments, servicing

Brakes:

Front and rear brake system maintenance, caliper overhaul, pad replacement, fluid bleeding, drum brake service

Frame And Bodywork:

Chassis inspection, swingarm, steering head bearings, body panel removal and installation, seat, fenders

Wheels And Tires:

Wheel bearing service, spoke tensioning, tire selection and installation, rim maintenance

Routine Maintenance:

Oil changes, filter replacements, chain adjustment, lubrication points, spark plug service

Troubleshooting:

Diagnostic procedures for common problems, electrical faults, engine performance issues

Repair:

Step-by-step repair instructions for all major components and systems

Disassembly And Assembly:

Detailed guides for dismantling and reassembling various motorcycle parts

Depth:

Comprehensive coverage from basic owner maintenance to full engine and transmission rebuilds

📊 Manual Specifications

Compatibility:

Compatible with all PDF readers on PC, Mac, tablets, and smartphones

Quality:

High-resolution scans for clear text and diagrams

Type:

N/A (Digital Download)

Type:

N/A (Digital Download)

⚙️ Engine Specifications

Type:

4-stroke, Single-cylinder, SOHC

Displacement:

347 cc (approx.)

Bore X Stroke:

74.0 x 80.0 mm (Typical for this era and displacement)

Compression Ratio:

9.5:1 (Approximate)

Cooling System:

Air-cooled

Ignition:

CDI (Capacitor Discharge Ignition)

Horsepower:

Approx. 25-30 HP (Estimated based on typical class performance)

Torque:

Approx. 20-24 Nm (Estimated)

Carburetor Type:

Single Mikuni carburetor (e.g., VM34 or similar)

Fuel Type:

Unleaded gasoline (87 octane or higher recommended)

🔧 Transmission

Type:

5-speed constant mesh

Clutch:

Wet, multi-plate

Drive Type:

Chain Drive

📐 Dimensions

Length:

Approx. 2170 mm (Varies slightly by year/spec)

Width:

Approx. 830 mm (Handlebar width)

Height:

Approx. 1220 mm (Seat height varies)

Dry Weight:

Approx. 125-130 kg

Fuel Tank Capacity:

Approx. 10 Liters (2.6 US gal)

🛡️ Safety Features

Crash Test Data:

N/A (Motorcycle specific crash ratings not typically applicable in the same way as cars)

Braking System:

Front: Disc brake, Rear: Drum brake (early models) or Disc brake (later/S models)

💡 Technology Features

Features:

N/A (Basic motorcycle instrumentation: speedometer, odometer, neutral indicator, high beam indicator)

Features:

N/A (No electronic rider aids typical for this era of dual-sport)

🔧 Maintenance

Oil Change Interval:

Every 3,000 km or 6 months (refer to manual for specifics)

Air Filter Cleaning:

Every 1,000 km or as needed in dusty conditions

Spark Plug Replacement:

Every 6,000 km (or check gap and condition)

Engine Oil Type:

SAE 10W-40 API SG or higher (e.g., Yamalube 4-stroke motorcycle oil)

Engine Oil Capacity:

Approx. 1.6 Liters without filter change, 1.8 Liters with filter change (confirm in manual)

Brake Fluid Type:

DOT 3 or DOT 4 (Check caliper/master cylinder for specific recommendation)

Transmission Oil Type:

Refer to engine oil specifications, as it's often a shared sump.

Common Wear Items:

Cam chain tensioner, carburetor jetting issues due to age, fork seal leaks, exhaust pipe corrosion.

Electrical Quirks:

Stator output degradation over time, CDI unit failure (less common but possible), aging wiring harness insulation.

📚 Vehicle History

Heritage:

Yamaha's long-standing reputation for reliable and performance-oriented motorcycles, especially in off-road and dual-sport categories.

Evolution:

The TT350 was part of Yamaha's 'True Dual-Purpose' line, evolving from earlier TT models and contributing to the development of modern dual-sport bikes. The 'S' designation often indicated sportier or slightly upgraded features, potentially including disc brakes front and rear or revised suspension.

Production Period:

1985 - 2000

🏆 Awards & Recognition

Historical Acclaim:

The TT350 series was generally well-regarded for its reliability and balance of off-road capability and street manners within its class during its production run. Specific awards are not widely documented for individual model years.