Timing belt. misfiring engine
A sloppy, worn out of adjustment timing belt.
The car might skip or jump when given gas if the gas has water in it or if your fuel lines have air in them. This problem is not uncommon when a gas filter is clogged or dirty.
jump on the car
What can cause the RPM on a car to jump while driving is a problem with the transmission. It could be a problem with the gears in the transmission itself.
It needs a tune-up..ie spark plugs air filter new wires etc
Jump in My Car was created in 1975.
If you have a worn timing chain that hasnt been changed before, that can cause the timing to jump and cause your car to run very rough or not run at all
The jump is caused by G forces. The car is moving and you stop the car, but you dont stop right away. You keep going until another force acts upon you, which is yourself and gravity. This applies to the car too. First the brakes stop the wheel, then the wheel stops the axles... and so on. This causes the "jumping forward".
timing belt, spark plugs, wires, fuel/air mix, fuel injectors
This may be a sign that your battery needs to be replaced. However, there may be other causes as well.
Yes, a lawn tractor can be jump started with a car battery, in the same manner as another car can be jump started.