🏷️ Basic Information

Make:

Yamaha

Model:

JOG

Year:

1996

Chassis Code:

Likely 3KJ or similar variations for the era

Engine Code:

Likely 5BM or similar for the 49cc 2-stroke air-cooled engine

👋 Introduction

Vehicle Segment:

Lightweight 50cc scooter, popular for urban commuting and recreational use

Target Audience:

Young riders, commuters, hobbyists

Competitors:

Honda Dio, Suzuki Address, Aprilia SR50 (in some markets)

Engine Type:

Compact, fuel-efficient 2-stroke engine

Transmission:

Automatic CVT for effortless riding

Handling:

Agile and lightweight for easy maneuverability

Styling:

Sporty and youthful design

📋 Manual Details

Coverage Scope:

Comprehensive service, repair, and maintenance

Page Count:

Estimated 150-250 pages (typical for this type of manual)

Manual Type:

Factory Service Manual (FSM) / Workshop Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine System:

Disassembly, assembly, inspection, troubleshooting, tuning of the 2-stroke engine

Fuel System:

Carburetor (VM12 or similar), fuel lines, fuel tank, fuel pump (if applicable)

Ignition System:

CDI unit, ignition coil, spark plug, wiring

Exhaust System:

Muffler, exhaust pipe, gasket replacement

Transmission System:

CVT (Continuously Variable Transmission) belt, clutch, drive variator, driven pulley inspection and replacement

Cooling System:

Air-cooled engine specifics

Chassis Frame:

Frame inspection, front fork, rear shock absorber, swingarm

Suspension System:

Front fork overhaul, rear shock absorber specifications and replacement

Braking System:

Front drum brake, rear drum brake, brake shoe replacement, brake cable adjustment

Wheel Tire System:

Wheel removal and installation, tire pressure, bearing inspection

Electrical System:

Lighting system, horn, battery, starter motor (kick start primarily), wiring diagrams

Bodywork Exterior:

Panel removal and installation, seat, fairings, plastics

Routine Maintenance:

Oil changes (gear oil), spark plug inspection/replacement, air filter cleaning/replacement, CVT belt inspection

Engine Repair:

Top-end rebuild (piston, rings), cylinder head service, crankshaft bearing replacement

Carburetor Service:

Cleaning, adjustment, jet replacement, float height setting

Transmission Service:

CVT drive face, sheave, torque driver inspection, roller weight inspection

Brake Adjustment Service:

Brake shoe replacement, brake cable adjustment, drum cleaning

Troubleshooting Guides:

Diagnostic flowcharts for common starting, running, and electrical issues

Wiring Diagrams:

Detailed electrical schematics for troubleshooting and repairs

Specifications Torque Values:

Engine bolt torques, suspension mounting torques, wheel nut torque

Depth:

Comprehensive, suitable for DIY enthusiasts and professional technicians

Diagnostic Capabilities:

Includes detailed troubleshooting steps for various symptoms

Rebuild Procedures:

Step-by-step instructions for major component overhauls

📊 Manual Specifications

File Type:

PDF

Searchability:

Text-searchable (OCR enhanced where applicable)

Printability:

Printable

Image Resolution:

High-resolution scans of original diagrams and photos

Binding:

N/A (Digital Product)

Paper Type:

N/A (Digital Product)

⚙️ Engine Specifications

Engine Type:

2-stroke, air-cooled

Displacement:

49 cc

Bore X Stroke:

Approx. 39.0 mm x 41.4 mm

Compression Ratio:

Approx. 7.2:1

Horsepower:

Approx. 5.5 - 6.5 PS @ 7000 RPM (varies by market and tuning)

Torque:

Approx. 5.0 - 5.5 Nm @ 6500 RPM (varies by market and tuning)

Carburetor Model:

Mikuni VM12 or similar

Fuel Type:

Unleaded gasoline

Fuel Mixture:

Requires 2-stroke oil mixed with gasoline (typically 100:1 or 50:1 depending on oil specification)

Fuel Tank Capacity:

Approx. 4.0 - 5.0 Liters

Oil Type:

Yamalube 2-stroke or equivalent API TC, JASO FD rated oil

Gear Oil Type:

Yamaha Gear Oil 10W-30 or equivalent API GL-4

Gear Oil Capacity:

Approx. 80-100 ml

🔧 Transmission

Transmission Type:

Automatic V-belt transmission (CVT)

Clutch Type:

Centrifugal clutch

Drive System:

V-belt, automatic variator and torque driver system

Gear Reduction:

Reduction gear system (e.g., 10.583 / 7.644)

📐 Dimensions

Overall Length:

Approx. 1680 mm

Overall Width:

Approx. 640 mm

Overall Height:

Approx. 1020 mm

Wheelbase:

Approx. 1175 mm

Dry Weight:

Approx. 70-75 kg

Curb Weight:

Approx. 77-80 kg

🛡️ Safety Features

Crash Test Ratings:

Not applicable (scooter segment typically not subjected to automotive crash testing standards)

Braking Type:

Front drum brake, Rear drum brake

Lighting:

Halogen headlight, LED taillight, turn signals

Frame Construction:

Steel tube frame

Rider Protection:

Seat belt: Not applicable. Recommended safety gear: Helmet, gloves, protective clothing.

💡 Technology Features

Infotainment System:

Basic instrumentation: speedometer, odometer, fuel gauge, indicator lights.

Driver Assistance Features:

None (typical for this class of vehicle).

Connectivity Features:

None (typical for this class of vehicle).

🔧 Maintenance

Engine Oil Change:

Check and top-up 2-stroke oil level frequently; change gear oil every 3,000-5,000 km or annually.

Spark Plug Inspection:

Inspect every 1,000 km, replace as needed.

Air Filter Cleaning:

Clean every 1,000-2,000 km, replace as needed.

Cvt Belt Inspection:

Inspect belt wear and condition every 2,000-3,000 km, replace if signs of cracking or excessive wear.

Brake Adjustment:

Adjust brake free play monthly or as needed.

2 Stroke Oil Spec:

API TC, JASO FD (or equivalent)

Gear Oil Spec:

SAE 10W-30 API GL-4

Common Wear Items:

CVT belt, brake shoes, spark plug, air filter, piston rings (due to high usage)

Carburetor Clogging:

Common in older scooters due to fuel deposits or sitting unused.

2 Stroke Engine Maintenance:

Requires proper premixing of fuel and oil; decarbonization of exhaust port and piston crown may be needed over time.

📚 Vehicle History

Manufacturer History:

Yamaha Motor Corporation is a Japanese manufacturer of motorcycles, marine products, and other motorized products. Founded in 1955, it has a strong heritage in performance and engineering.

Jog Lineage:

The Yamaha Jog series is a long-running line of 50cc scooters, first introduced in the 1980s. The 1996 model represents an evolution of this popular platform, often featuring updated styling and minor mechanical revisions.

Manufacturing Location:

Primarily Japan, with potential assembly in other regions for specific markets.

Production Span:

The Jog line has been in continuous production for decades, with numerous variations and generations.

🏆 Awards & Recognition

Model Specific Awards:

No widely publicized awards for this specific model year, but the Jog series is recognized for its reliability and popularity.

Customer Satisfaction:

Generally high due to simplicity, affordability, and ease of maintenance.