If I'm wrong, I apologize. But are you sure about what you're saying?
You're correct when you say that every time the spark plug does its thing, most of the mixture is burned. But what determines gas consumption is the amount of fuel in the chamber. What makes you say that there is more fuel in the cylinder? You're foot is totally off the accelerator.. And there is not outboard device that suggets to raise fuel delivery.
Thus, I'm quiet certain the higher rev is due to inertia.
The force that raises the rpm is from the camshaft that rotates faster, and dispatches the pistons with greater velocity. There's your rpm raise..
Do you still think my apprehension of the matter is incorrect?
