starts up idles nice leave the drive way and drive about 5 blocks it starts coughing, jerking
it was running fine last yr
Sounds like the mixture is set well for starting, then goes too rich for general driving. When the coughing, jerking symptoms start, try turning the mixture control under the dash (see pic) clockwise 1/8 turn or so at a time until the engine smooths out.
Oh, I forgot to mention - once you get the mixture adjusted perfectly for general driving, you may find that you have to adjust the mixture richer (counter-clockwise) for starting and warmup, then go back clockwise to your driving mixture setting once the engine is warmed up.
Thank you Mark I will try that tonite