Could be,worn spark plugs,
bad spark plug wires,
vacuum leak,
contaminated fuel (water),
faulty fuel pump,
faulty fuel pressure regulator,
faulty fuel injector(s),
more info such as the year, make, model and engine would help.
Timing belt. misfiring engine
Misfire is usually caused by faulty wires or spark plugs or both. Throttle position sensor failure generally causes poor response to the throttle. That is poor acceleration, slow to return to idle and rough idle.
Bad plugs/coil/wiring
Poor upkeep try cleanig the airfilter if that doesent work try cleaning out the carburetor I have a yamaha 350 bruin I had the same problem
It could be misfiring. It could be set to idle too low. The timing could be off. Check what your RPMs are when the car is idling- it should be 8,000.
It could be (a) misfiring cylinder(s). Check the condition of your plugs and wires. Also, check if your engine mounts are not worn.
low idle and uneven idle
Could be a number of things. Does it jump when you are driving it and parked? It could be an idle air control valve or even a throttle position sensor, it could be misfiring also. My t/a did the same and it turned out to be the idle air control valve.
Yes, it can. Other causes include ignition and fuel systems.
The Ignition Coil is the one that cause misfire or Spark Plugs
The homophone for "bum" is "bumm."
Vacuum leek