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1988 Tomos A3 Automatic Service Repair Workshop Manual
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🏷️ Basic Information Identification Make: Tomos Model: A3 Automatic Model Variant: A3 moped, single-speed automatic transmission Production Years Covered: 1988 (manual is specific to the 1988 model year; A3 series...
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Type: Motorcycles
Forhandler:
Sku: 14453
Tags:
1988
Motorcycles
Tomos
Tomos A3
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🏷️ Basic Information
Identification
Make:
Tomos
Model:
A3 Automatic
Model Variant:
A3 moped, single-speed automatic transmission
Production Years Covered:
1988 (manual is specific to the 1988 model year; A3 series was produced from the 1960s through the early 1990s)
👋 Introduction
Market Position
Target Audience:
Budget-conscious urban commuters; mopeds sold widely in Europe and the United States for low-cost, low-displacement transportation
Class:
49cc moped
Competitive Advantage
Key Advantage:
Simple two-stroke drivetrain with automatic (torque converter) transmission requiring no clutch operation
Ease of Maintenance:
Minimal tools required; design supports owner servicing and rebuilds
Key Features
Engine:
Air-cooled single-cylinder two-stroke, approx. 49cc
Transmission:
Automatic, single-speed
Frame:
Step-through steel frame
Wheels:
Small-diameter spoked wheels typical of the A3 series
📋 Manual Details
Document Facts
Manual Type:
Service Repair Workshop Manual
Coverage:
Complete factory-level coverage: repair, maintenance, rebuild, refurbish and restore
Language:
English
Format & Delivery
File Format:
PDF
Delivery Method:
Instant download upon completion of payment
Printing:
All pages printable; print only the pages you need for the garage
Shipping:
None - no CD or paper manual to wait for
Illustrations:
Detailed illustrations, diagrams, wiring schematics and specifications
📖 Manual Coverage
Systems Covered
Engine:
Complete teardown, inspection, rebuild and reassembly of the two-stroke engine
Fuel System:
Carburetor service, fuel tank, petcock and lines
Ignition System:
Points/magneto ignition service, timing, spark plug specifications
Transmission:
Automatic torque converter transmission diagnosis, service and rebuild
Drive:
Final drive and rear wheel drive components
Wheels & Brakes:
Wheel truing, hub service, brake shoe replacement and adjustment
Suspension:
Front fork and rear suspension service
Steering:
Handlebar, headset bearings and steering components
Electrical System:
Wiring schematics, lighting, horn and switch service
Frame & Body:
Frame, fenders, chainguard and body panels
Procedures Included
Diagnostics:
Troubleshooting charts for engine, ignition, fuel and electrical faults
Maintenance:
Periodic service schedules and adjustment procedures
Repair:
Step-by-step repair instructions with detailed illustrations
Rebuild:
Complete engine and transmission rebuild procedures
Assembly:
Disassembly and reassembly sequences with torque specifications
Technical Depth
Detail Level:
Factory workshop level - every single detail covered
Illustrations:
Detailed illustrations, diagrams and wiring schematics throughout
Specifications:
Full torque, clearance and adjustment specifications
Intended User:
Professional technician or DIY owner
Parts Information
Part References:
Part numbers and exploded views referenced throughout procedures
Wear Items:
Piston, rings, spark plug, brake shoes, bearings and cables covered
Interchange:
N/A - not specified for this model
📊 Manual Specifications
File & Compatibility
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print & Binding
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
⚙️ Engine Specifications
Engine
Engine Type:
Single-cylinder, air-cooled two-stroke
Displacement:
Approx. 49cc
Engine Family:
Tomos A35-type engine used in the A3 series
Cooling:
Forced air cooling
Fuel System
Fuel Delivery:
Carburetor, gravity-fed from frame-mounted tank
Fuel:
Premixed gasoline and two-stroke oil
Ignition:
Magneto ignition with spark plug
Performance
Top Speed:
Approx. 25-30 mph, consistent with US moped regulations
Horsepower:
N/A - not specified for this model
🔧 Transmission
Transmission
Standard Transmission:
Single-speed automatic (torque converter type)
Optional Transmission:
N/A - not specified for this model
Clutch:
Automatic centrifugal / torque converter - no hand clutch
Drive:
Final drive to rear wheel
Features
Operation:
Twist-grip throttle only; no shifting required
Service:
In-manual teardown, diagnosis and rebuild procedures
📐 Dimensions
Exterior
Wheelbase:
N/A - not specified for this model
Length:
N/A - not specified for this model
Wheels:
Small-diameter spoked wheels typical of the A3 series
Weights
Curb Weight:
Lightweight moped, approx. 110-120 lb class
Capacity:
Single rider plus light cargo, typical for the class
🛡️ Safety Features
Active Features
Brakes:
Hand-operated drum brakes front and rear
Lighting:
Headlight, taillight and rear reflectors
Mirrors:
Rearview mirror
Horn:
Electric horn
Passive Features
Frame:
Step-through steel frame for low seat height and easy dismount
Controls:
Simple control layout with automatic transmission
Crash Test Ratings:
N/A - not specified for this model (mopeds not crash tested)
💡 Technology Features
Infotainment
Audio System:
N/A - not specified for this model
Instrumentation:
Speedometer; basic dash controls
Driver Assistance
Driver Assistance:
N/A - not applicable to a 1988 moped
🔧 Maintenance
Service Intervals
Periodic Service:
Manual includes the full periodic maintenance schedule
Routine Items:
Chain/belt check, brake adjustment, tire pressure, spark plug service
Winter Storage:
Storage and recommissioning procedures included
Fluid Specifications
Fuel Mix:
Gasoline premixed with two-stroke oil per manual ratio specification
Gear Oil:
Transmission/gearcase oil type and capacity per manual specification
Known Issues / Common Wear
Engine Wear Items:
Piston, rings, cylinder and crank seals on high-mileage two-strokes
Ignition Wear:
Contact points and condenser require periodic adjustment/replacement
Brakes:
Brake shoe wear and cable stretch are common service items
Carburetor:
Carb cleaning after storage is a frequent need
📚 Vehicle History
Brand Heritage
Manufacturer:
Tomos (Tovarna motornih koles Sezana), founded 1954 in Sezana, Slovenia (then Yugoslavia)
Background:
Built mopeds and motorcycles for European and US markets, including mopeds produced under license for markets such as the Netherlands
Model Evolution
Model Line:
A3 series was Tomos's long-running small moped platform of the 1960s-1990s
Automatic Variant:
A3 Automatic added torque-converter automatic transmission to the basic A3 platform
Production Location
Factory:
Sezana, Slovenia
🏆 Awards & Recognition
Recognition
Awards:
N/A - not specified for this model
Market Note:
One of the most numerous moped imports to the US in the late 1970s-1980s, contributing to a strong enthusiast community today