tick over problems

  1. #1
    my wifes s plate vtr starts ok and drives ok, only problem is to start with on tick over rev counter drops intermitantly rises high and settles to normal as if it has a quick surge on auto choke . sudden fuel starvation then increase, then tick over is normal. any ideas.????? this problem has now happening while driving now. help????
  2. #2
    idle control valve remove it clean it with brake cleaner re-fit then try that if it still the same replace and all will be fine.