petrol - air fuel pre mixed and sent to engine. quality cannot be changed (rich or lean mix). By operating the throttle / accelerator the quantity of fuel is varied ( other than starting idling etc)....
sateesh
Mar 18th, 2015
Basically petrol engines are quantity governing b coz , in this
case fuel is mixed in the carburetor , so to change the speed we need to control the quantity of mixture that is going in the cylinder....
