rev limiter will only let the RPM's get so high then it cuts back
you may not be at a high enough rpm
rpm too low maybe you are shifting to soon
o2 sensor
you are going too slow for that gear your engine has very little torque at low rpm
Type your answer here... Your Mass Air FLow sensor might need to be replaced, its going bad.
Adjust your idle.
open or missing thermostat
RPM is short for Revolutions Per Minute. It is the measurement of how many times your engine is rotating each minute. As you accelerate, your RPM will increase until the next gear is selected, lowering the RPM. RPM is the whole reason for transmissions: if there was only one gear the RPM would get so high that the engine would become damaged. By shifting into higher gears, the RPM is lower and you get better gas mileage.
Put the engine into high RPM in neutral or park.
Because bike engines Rev at high speeds typically 10k rpm as compared to 3 or 4 k rpm for a car
when u first start the car it will idle high, around 1.5 rpm to 2 rpm. when its warm up it should idle between 700-1000 rpm
I'd guess a broken motor mount. Releasing the gas pedal would change the rpm of the engine, so you may be feeling the motor shifting as a jerk.