🏷️ Basic Information

Make:

Yamaha

Model:

TTR 90

Year:

2000-2002

Type:

Dirt Bike

Chassis Code Range:

Likely identified by specific VIN sequences for 2000-2002 models, detailed within the manual.

👋 Introduction

Target Audience:

Young riders and beginners in off-road motorcycling.

Segment:

Entry-level youth dirt bike.

Competitors:

Honda CRF50F, Suzuki JR80, Kawasaki KLX110 (though slightly larger displacement).

Ease Of Use:

Designed for simplicity and ease of operation for novice riders.

Durability:

Known for Yamaha's reputation for reliable construction.

📋 Manual Details

Systems Covered:

Engine, Transmission, Chassis, Electrical System, Fuel System, Ignition System, Cooling System, Lubrication System, Suspension, Brakes, Wheels & Tires, Bodywork, Troubleshooting, Maintenance

Estimated Pages:

Approx. 200-300 (typical for this model and era of service manual)

Type:

Service Repair Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Engine Overhaul:

Detailed disassembly, inspection, and reassembly procedures for the entire engine.

Transmission Service:

Clutch operation, gear shifting mechanisms, and lubrication.

Electrical Diagnostics:

Wiring diagrams, component testing, ignition system troubleshooting, lighting, and charging system.

Fuel And Carburetion:

Carburetor adjustment, cleaning, and jetting information.

Suspension And Steering:

Front fork service, rear shock absorber maintenance, and steering head bearing adjustment.

Braking System:

Brake lever, caliper, and pad maintenance; brake fluid replacement.

Routine Maintenance:

Oil changes, filter replacements, chain adjustment, and spark plug checks.

Troubleshooting Guides:

Systematic diagnostic steps for common operational issues.

Repair Procedures:

Step-by-step instructions for component replacement and repair.

Technical Specifications:

Torque values, clearances, fluid capacities, and electrical resistances.

Engine Disassembly:

Step-by-step guides for removing and breaking down engine components.

Suspension Rebuild:

Instructions for servicing front forks and rear shock absorbers.

Depth:

Comprehensive, covering both basic maintenance and in-depth mechanical repairs.

Diagnostic Capabilities:

Includes diagnostic charts for troubleshooting common problems, guiding users to identify root causes.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely searchable text content for easy navigation.

Illustration Quality:

Illustrated with clear, step-by-step instructions (as per description).

Printability:

Designed for clear printing of text and diagrams.

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Completeness:

Comprehensive service and repair information for the specified model years.

⚙️ Engine Specifications

Engine Type:

Four-stroke, SOHC, Air-cooled

Displacement:

88 cc

Bore X Stroke:

Approx. 47 x 50.6 mm (typical for this displacement)

Compression Ratio:

Approx. 9.5:1 (typical for this era)

Starting System:

Kick Start

Valve Train:

SOHC (Single Overhead Camshaft)

Horsepower:

Estimated 6-7 HP (typical for this class)

Torque:

Not prominently advertised, but sufficient for its intended use.

Fuel Delivery:

Carburetor

Carburetor Model:

Yamaha VM17 (common for this model, may vary slightly)

Fuel Type:

Unleaded Gasoline

Fuel Tank Capacity:

Approx. 3.0 Liters (0.8 Gallons)

🔧 Transmission

Transmission Type:

Automatic (Centrifugal Clutch)

Gear Selection:

Forward 3-speed, Neutral, Reverse

Clutch Type:

Wet, multi-plate, automatic

Final Drive:

Chain Drive

📐 Dimensions

Overall Length:

Approx. 1565 mm (61.6 in)

Overall Width:

Approx. 725 mm (28.5 in)

Overall Height:

Approx. 975 mm (38.4 in)

Seat Height:

Approx. 730 mm (28.7 in)

Wheelbase:

Approx. 1085 mm (42.7 in)

Dry Weight:

Approx. 70 kg (154 lbs)

Wet Weight:

Approx. 75 kg (165 lbs) (with fluids)

🛡️ Safety Features

Safety Compliance:

Designed to meet relevant safety standards for off-road recreational vehicles.

Brakes:

Front and rear drum brakes.

Frame Construction:

Durable steel frame designed for off-road use.

💡 Technology Features

Features:

N/A (This is a basic dirt bike with no electronic infotainment features).

🔧 Maintenance

Engine Oil Change:

Every 1,000 km (620 miles) or 6 months.

Air Filter Cleaning:

Every 500 km (310 miles) or as needed based on conditions.

Spark Plug Inspection:

Every 1,000 km (620 miles).

Chain Lubrication Adjustment:

Every 300 km (185 miles) or as needed.

Engine Oil Type:

Yamalube 4 (or equivalent SAE 10W-30 API SE, SF, SG or SH classified)

Engine Oil Capacity:

Approx. 0.90 Liter (0.95 US qt)

Brake Fluid Type:

DOT 3

Carburetor Clogging:

Can occur with infrequent use or poor fuel quality, requiring cleaning.

Chain Wear:

Regular adjustment and lubrication are key to longevity.

Starter Lever Issues:

Proper maintenance of the kick-start mechanism is recommended.

📚 Vehicle History

Manufacturer:

Yamaha Motor Corporation is a Japanese manufacturer known for its broad range of products including motorcycles, marine products, and musical instruments.

Ttr Series:

The TTR line represents Yamaha's durable and user-friendly off-road motorcycles, often targeted at recreational riders and younger enthusiasts.

Production Years:

The TTR 90 was produced for a number of years, with this manual specifically covering the 2000, 2001, and 2002 model years.

🏆 Awards & Recognition

Industry Perception:

Generally well-regarded as a reliable and fun entry-level dirt bike for its era.