stottering

[mickheike]

• Welke model tomos heb je? 70cc
  Uit welk jaar komt de tomos ? 1981
  Is het een snor of een brommer? brommer
  Wanneer ontstond het probleem? always
  
  
  Heb je onlangs iets veranderd aan je tomos? yes I have a70cc motor with 12 volt optic ignition
  
  
  Wat is het probleem?

My problem is the motor stutters when I give gas From the ignition come two cables one to the coil and on to engine kill and one to the lights no reglaar fitted 15-15 carb two timing marks? which one is correct it doesnt seem to matter which I use it still stotters.

[keesos]

Check the color of your spark-plug, if its a little bit black colored Try a smaller jet. i think that should solve the problem

[PimW]

did you install the right fuel jet? If it is too smal or too big your engine will not perform well.
And maybe you have a leak somewhere, this can lead to a stuttering engine. If you have an electronic ignition there will be two marks on the carter. You should use the top one. This gives you a right spark advance. From your ignition come two wires: a yellow wire for lights, and a black one that will go to the kill switch and then to your cdi.