Distribute high tension current from ignition coil to secondary winding
Distribute high tension current flow ignition coil to spark plugs
Opens and closes the secondary circuit of coil
Distribute low tension current to ignition coil
Distribute high tension current to spark
Insulate spark plug electrodes
Prevents arcs at the points
Open and close the primary circuit
Improve combustion swirl
Increase the fuel pressure
Improve fuel atomisation
Helps for the complete ignition
Helps in easy fitting
Produce correct alignment
Provide clearance space
Produce good sealing
Spark plug will run cooler
Life of spark plug increased
Spark plug will run hot
Improper atomisation