Vskills Certified Motorcycle Mechani Table of Content

Table of Content

Working Principal of Clutch

  • Working of a clutch (Single Plate, Dry, Coil Spring Type)
  • Different Types of clutch Used are

Working Principle of Constant Mesh Gear Box

  • Working Principle of Constant mesh Gear Box
  • Advantages

Valve Timing of 4 Stoke Petrol Engine

  • Valve timing of 4 Stroke petrol engine

Construction and Operation of Different Circuits in a Latest Carburettor of a Motorcycle

  • Starting Circuit
  • Off-idle circuit
  • Main/Acceleration Circuit
  • Econostat /power circuit

Procedure for Dismantling and Assembling of a Carburetor

  • Dismantling
  • Cleaning
  • Checking
  • Assembling

Procedure for Checking Compassion Pressure

Procedure for Reading Micrometer and Dial Gauges

  • Types of micrometer
  • Outside micrometer
  • Inside micrometer
  • Dial Gauges are used for

Procedure for Dismantling, Checking Components & Assembling of Engine & Transmission

  • Dismantling of the vehicle
  • Cleaning
  • Checking
  • Assembling


  • Analog type Multimeter
  • Digital type Multimeter
  • Current to Voltage Converter
  • AVO Meter
  • Ohm’s Law, Series Circuit, Transistor
  • Ohm’s Law
  • Ohm’s Law defines
  • Simple Electric Circuit
  • Open Circuit
  • Parallel Circuit
  • Series Circuit
  • Transistor Biasing
  • Operation of PNP transistor
  • Wiring Colour Code
  • Description of Cables
  • Colour Code in Cables
  • Purpose of Colour code

Working Principle of Starter Motor and Alternator

  • Starter Motor
  • Operation of starter motor
  • Need of alternator
  • Operation of Alternator

Electronic Ignition System

Fault Finding Procedure in Ignition System

Working Principle of Brakes (Disc and Drum)

  • Need for a Brake
  • Different parts of a Drum brake
  • Working principle of Disc Brake
  • Working principle of Drum brake
  • Latest Emission Norms, Controls Available to Meet the Norms & Their Working
  • Principle
  • Overview of the emission norms in India
  • Light Duty Gasoline Vehicles
  • 3-and 2-wheel vehicles
  • Controls available to meet the norms and their working principle
  • Catalytic Converter
  • Secondary Air Injection (SAI)

Purpose and Function of a Shock Absorber, Procedure for Overhauling a Shock Absorber

  • Shock Absorbers
  • Mechanical Type
  • Hydraulic Type
  • Construction of a Shock Absorber
  • Advantages of a Gas Filled Shock absorber
  • Factors affecting Suspension
  • Effects of Weak Suspension
  • Overhauling of Shock absorber
  • Bearings-Types, Handling Procedure for Assembling and Dismantling
  • Bearings
  • Details of Engine Bearings
  • Engine bearings
  • Qualities of engine bearings
  • Fatigue strength
  • Conformability
  • Embeddability
  • Surface action
  • Temperature strength
  • Thermal Conductivity
  • Bearing materials used
  • Bearing Spread
  • Bering Crush
  • Methods of Bearing Failure Fatigue Failure
  • Foreign matter on bearing surface
  • Improperly seated bearing
  • Connecting rod Mis- alignment
  • Connecting rod and camshaft bearings
  • Crankshaft Bearings
  • Thrust Bearings
  • Camshaft bushings
  • Small end of connecting rod
  • Load on the precision insert bearing
  • Handling of Bearings


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