Causes of Problem

Remedy

• Incorrect Electrode gap of spark plug

• Electrode worn out

• Fouled spark plug

• Shorter reach plug used

• More than one gasket used

• Aged spark plug

• Interrupted/Insufficient/Wrong polarity/High Tension Voltage reaching spark plug terminals

• Compression low

• Valves sticky

• Valve springs weak

• Tappet clearance incorrect

• Valve timing incorrect

• Fuel-air mixture too lean

• Correct

• File and adjust gap

• Clean

• Use correct reach plug

• Remove extra gasket

• Replace

• Check ignition System and rectify the problem

• Rectify

• Rectify

• Replace

• Adjust

• Adjust

• Adjust carburettor