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Vespa PK 50 User Manual

Vespa PK 50
69 pages
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Table of Contents

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Vespa PK 50 Specifications

General IconGeneral
Bore x Stroke38.4 mm x 43 mm
Compression Ratio7.5:1
Cooling SystemAir-cooled
Transmission4-speed manual
Front BrakeDrum
Rear BrakeDrum
Width700 mm
Height1, 000 mm
Wheelbase1, 170 mm
Engine TypeSingle-cylinder, 2-stroke
Rear SuspensionCoil spring with hydraulic shock absorber
Front SuspensionSingle arm with coil spring and hydraulic shock absorber

Summary

Modification to the Service Station Manual

General Instructions for Maintenance and Lubrication

Electrical Equipment Diagram (6V, 4-Pole Flywheel Magneto - Basic Version)

Electrical Equipment Diagram (6V, 4-Pole Flywheel - Without Horn)

Electrical Equipment Diagram (6V/12V Mixed, 4-Pole Flywheel - With Turn Signal Lamps)

Electrical Equipment Diagram (6V/12V Mixed, 4-Pole Flywheel - Turn Signals & Stop Light)

Electrical Equipment Diagram (6V, 6-Pole Flywheel Magneto - Basic Version)

Electrical Equipment Diagram (6V, 6-Pole Flywheel - Stop Light & Main Beam Tell Tale)

Electrical Equipment Diagram (12V, 6-Pole Flywheel Magneto - With Turn Signal Lamps)

Electrical Equipment Diagram (12V, 6-Pole Flywheel - DC Horn, No Town Light)

Electrical Equipment Diagram (12V, 6-Pole Flywheel - Battery & DC/AC Regulator)

Electrical Equipment Diagram (12V, 6-Pole Flywheel - Optical Warning Device)

Electronic Ignition System

Main Advantages of Electronic Ignition

Key benefits of electronic ignition over traditional systems.

Electric Nature Advantages

Electrical benefits: stable running, better starting, extended plug life.

Mechanical Nature Advantages

Mechanical benefits: unalterable timing, reduced maintenance.

Device Description (4-Pole Flywheel)

Components and function of electronic ignition for 4-pole flywheel systems.

Device Description (6-Pole Flywheel)

Components and function of electronic ignition for 6-pole flywheel systems.

Rules for Operating Electric Devices

General Information for Electric Device Operation

Basic precautions for handling electronic ignition circuits to prevent damage.

Troubleshooting Ignition System Issues

Procedures for diagnosing and resolving ignition system faults.

Checking Ignition Timing

Guidance on verifying and adjusting engine ignition timing.

Electronic Ignition for Vespa Elestart

Flywheel Magneto LT Section Check (DC)

Testing low tension section of flywheel magneto in DC circuits.

Generator Checking Procedure

Steps for testing the generator's output and performance.

Regulator Checking Procedure

Detailed steps for testing the voltage regulator's functionality.

Vespa Elestart Battery and Starter Motor

Battery Service Instructions (Charged-Dry)

Guide for preparing and activating a dry-charged battery.

Battery Maintenance Procedures

Checking Electrolyte Level

Instructions for verifying and adjusting battery electrolyte levels.

Checking Battery Charge Condition

Assess battery charge using density and voltage readings.

Battery Charging Procedure

Steps for safely charging the vehicle battery.

Electric Starter Motor Features

Starter Revision Bench Tests

Starter Motor Dismantling Procedure

Procedure for safely disassembling the starter motor.

Pinion and Free Wheel Replacement

Steps for replacing the starter pinion and free wheel assembly.

General Disassembly Procedures

Piston and Cylinder Assembly Play

Front Suspension Unit Overhauling

Front Suspension Unit Overhauling Details

Process for overhauling steering unit and front suspension.

Dismantling Front Suspension Components

Guide for dismantling suspension parts like tab washers.

Security Lock Cylinder Replacement

Transmission Outer Cable Lubrication Tool

Carburettor Overhaul Procedures

Flywheel Magneto Testing

Terminal Voltage of Headlamp Bulb

Specifies expected headlamp bulb voltages under various conditions.

Voltage Regulator Checking

Necessary Apparatus for Voltage Regulator Test

Lists required tools and equipment for testing the voltage regulator.

Voltage Regulator Test Procedure

Step-by-step guide for testing the voltage regulator's performance.

Voltage Regulator Test Results Interpretation

Interpreting test results to identify regulator anomalies or failures.

Locking Torque Specifications

Engine Reassembly Procedures

Checking Engine Timing (4-Pole Flywheel)

Procedure for checking engine timing with a 4-pole flywheel.

Checking Engine Timing (6-Pole Flywheel)

Procedure for checking engine timing with a 6-pole flywheel.

Front Suspension Overhaul (PK 80S-125S)

Road Consumption Test Guide

Road Consumption Test Results

Interpreting fuel consumption results from road tests.

Pre-Operation Vehicle Checks

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