1988-1991 Yamaha Snoscoot SV 80 E Snowmobile Service Repair Manual

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Taper: Snowmobile

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UGS: 122115

Mots clés: 1988 1989 1990 1991 Motorcycles Snoscoot SV 80 E Snowmobile SV Models Yamaha

Variantes de produits

Description

This manual covers the Yamaha Snoscoot SV 80 E snowmobile, produced from 1988 to 1991. Designed as an entry-level, youth-oriented recreational machine, the Snoscoot SV 80 E emphasizes lightweight construction, user-friendly operation, and maneuverability. Its compact size and accessible controls make it ideal for young riders and beginners seeking an enjoyable and uncomplicated snowmobiling experience. Yamaha's reputation for engineering quality and reliability underpins this model, offering a unique blend of fun and dependability in a lightweight package. This comprehensive service and repair manual provides detailed information essential for maintaining and repairing your Yamaha Snoscoot SV 80 E. It covers all major systems, including the engine, drivetrain, chassis, suspension, and electrical components. Within its pages, you will find step-by-step repair instructions, routine maintenance procedures, diagnostic flowcharts for troubleshooting common issues, and precise technical specifications. This manual is an invaluable resource for owners, mechanics, and technicians alike, ensuring the continued optimal performance and longevity of your snowmobile.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

Snoscoot SV 80 E

Type:

Snowmobile

Product Type:

Service Repair Manual

Generation

Production Years Covered:

1988, 1989, 1990, 1991

Codes

Model Code:

SV 80 E

👋 Introduction

Market Position

Segment:

Entry-level, youth-oriented, lightweight recreational snowmobile.

Target Audience:

Young riders, beginners, casual snowmobilers looking for an accessible and fun machine.

Competitive Analysis

Key Competitors:

Arctic Cat Jag, Polaris Indy Lite, Ski-Doo Safari (similar displacement/performance class).

Key Features

Design Philosophy:

Lightweight, user-friendly, maneuverable, and affordable.

Unique Selling Points:

Compact size, easy handling, reliable Yamaha engineering, suitable for smaller riders.

📋 Manual Details

Coverage Areas

Overall Scope:

Comprehensive service and repair information for the Yamaha Snoscoot SV 80 E.

Page Count

Estimated Pages:

Over 250 pages (typical for this era of service manual)

Manual Type

Type:

Factory Service Manual / Workshop Manual

Language

Primary Language:

English

Format

Digital Format:

📖 Manual Coverage

Systems Covered

Powertrain:

Engine overhaul, lubrication system, cooling system, fuel system, exhaust system.

Drivetrain:

Clutch system (primary and secondary), drive belt, chain case, drive axle, track system.

Chassis And Suspension:

Front suspension (spindles, shocks, springs, steering), rear suspension (skid frame, shocks, idler wheels, track), skis, steering system.

Electrical:

Ignition system, lighting system, charging system (stator, rectifier/regulator), battery, starter motor, wiring diagrams.

Bodywork And Controls:

Handlebars, controls, seat, body panels, decals, storage.

Procedures Included

Maintenance:

Routine inspections, lubrication points, belt inspection/replacement, spark plug checks, filter cleaning/replacement, track tension adjustment.

Troubleshooting:

Diagnostic flowcharts for common starting, running, and performance issues.

Repair:

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

Diagnostics:

Detailed diagnostic procedures for engine, electrical, and chassis components.

Specifications And Tolerances:

Torque specifications, clearances, fluid capacities, electrical resistance values.

Technical Depth

Depth:

Comprehensive. Covers everything from basic maintenance to full engine and transmission overhauls. Suitable for both DIY enthusiasts and professional technicians.

📊 Manual Specifications

File Format

Format:

Searchability:

Fully searchable text for quick access to information.

Print Quality

Resolution:

High resolution, ensuring clarity of diagrams and text.

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

2-stroke, reed valve, air-cooled

Displacement:

79 cc

Bore X Stroke:

48.0 mm x 44.0 mm

Compression Ratio:

6.4:1

Carburetor:

Mikuni VM20SS

Ignition:

CDI (Capacitor Discharge Ignition)

Performance

Horsepower Estimate:

Approximately 8-10 HP (engine output)

Cooling System:

Fan-assisted air cooling

Fuel System

Fuel Type:

Unleaded gasoline

Oil Mixture Ratio:

50:1 (Yamaha Premium 2-M Marine Oil or equivalent 2-stroke oil)

Engine Maintenance

Spark Plug Gap:

0.6 - 0.7 mm (0.024 - 0.028 in)

Spark Plug Type:

NGK BR9ES or equivalent

🔧 Transmission

Standard

Type:

Automatic CVT (Continuously Variable Transmission) with forward and reverse

Drive System:

Chain drive (from transmission to drive axle)

Features

Clutch System:

Dry centrifugal clutch (primary) and adjustable clutch (secondary)

Maintenance

Chain Case Oil Type:

Yamaha Gear Oil for Outboard Motors or equivalent SAE 80 API GL-4

Chain Case Oil Capacity:

Approximately 120 ml (0.12 L / 4 oz)

📐 Dimensions

Exterior

Overall Length:

Approx. 1960 mm (77.2 in)

Overall Width:

Approx. 910 mm (35.8 in)

Overall Height:

Approx. 975 mm (38.4 in)

Weights

Dry Weight:

Approx. 105 kg (231 lbs)

Track Width:

Approx. 800 mm (31.5 in)

Dimensions

Ski Stance:

Approx. 710 mm (28.0 in)

Track Dimensions:

Standard: 305 mm x 1920 mm (12 in x 75.6 in)

🛡️ Safety Features

Ratings

Certification:

N/A (Consumer recreational vehicle, not typically crash-tested or rated like automobiles)

Active Features

Braking System:

Disc brake, operated by left handlebar lever.

Kill Switch:

Thumb throttle with safety interlock and emergency kill switch (lanyard type).

Passive Features

Lighting:

Headlight and taillight for visibility.

Ergonomics:

Designed for smaller riders with accessible controls.

💡 Technology Features

Infotainment

Display:

Basic gauge cluster: speedometer, tachometer (optional/integrated), engine temperature warning light.

Driver Assistance

Features:

N/A (Basic recreational vehicle, no modern driver assistance systems).

Connectivity

Features:

N/A (No electronic connectivity features).

🔧 Maintenance

Service Intervals

Initial Service:

Break-in period service recommended at 10-20 hours or 100-200 miles, involving initial clutch/belt inspection and chain case lubrication.

Regular Maintenance:

Check track tension and condition every 50-100 hours, inspect drive belt wear every 100 hours, clean/inspect carburetor and air filter every 100-200 hours, change chain case oil annually or every 200 hours.

Fluid Specifications

Engine Oil Type:

Yamaha Premium 2-M Marine Oil or equivalent API-TC, JASO FD rated 2-stroke oil.

Chain Case Oil Type:

Yamaha Gear Oil for Outboard Motors or equivalent SAE 80 API GL-4.

Fluid Capacities

Fuel Tank Capacity:

Approx. 7.0 Liters (1.8 US Gallons)

Known Issues

Common Wear Items:

Drive belt, carbides on skis, track (due to age/use), suspension bushings, carburetor adjustments.

Common Issues

Carburetor Clogging:

Common with older fuel systems; requires regular cleaning and proper fuel storage.

Clutch Slippage:

Can occur due to worn belt or clutch components; requires inspection and adjustment/replacement.

Maintenance Tips

Storage:

Proper off-season storage procedures (fuel stabilizer, fogging oil, battery care) are critical for longevity.

📚 Vehicle History

Brand Heritage

Heritage:

Yamaha Motor Corporation is a global leader in powersports, known for innovation, quality, and reliability in motorcycles, ATVs, personal watercraft, and snowmobiles.

Model Evolution

Snoscoot Line:

The Snoscoot series was Yamaha's entry into the lightweight, youth-oriented snowmobile market, offering an alternative to larger, more powerful machines.

Production

Manufacturing Origin:

Japan (Yamaha's primary manufacturing hub for snowmobiles during this era).

Lifespan:

The SV 80 E model was produced for a relatively short period, focusing on its niche market.

🏆 Awards & Recognition

Recognitions

Market Reception:

The Snoscoot SV 80 E was generally well-received in its niche for its ease of use and Yamaha's reputation for quality, though its performance was modest.

Ratings

Consumer Feedback:

Praised for its suitability for younger riders and beginners, and its lightweight design.