21
z No fuel
z Dirty fuel filter
z Obstructed fuel tubing
z Obstructed ventilation tubing of the fuel tank
z Poor carburetor buoyant needle valve
z Carburetor buoyant with impurities
z Poor carburetor buoyant
z No skip in spark plugs
z Poor skip in spark plugs
z Dirty spark plugs
z Incorrect spark plugs gap
z Dirty and wet spark plugs
z Loose adjustment screws in the carburetor
z Carburetor choke
z Obstructed carburetor slow nozzle
z Ailing carburetor threshold
z Obstructed air filter grill
z Leakage in cylinder washer
z Seriously damaged cylinder, piston, piston
z Dead battery
z Poor contact of battery pin and conductors
z Starting switch with poor or failure
z Starting relay with broken wire or short circuit
z Loose contact and wiring
z Starting gear and speeding clutch gear seriously worn
z Starting gear and speeding clutch gear in poor engagement
z Poor starting motor