Anyone else experiencing an intermitent fault where the engine acts like it is only firing on 3 cylinders. If I stop, turn off and restart it is fine. Until it happens again.

What is your question?

Always starts perfectly when cold. the fault occurs randomly but generally around town after 10 km or so. Rarely happens on long trip ( 300km + ) Motor wobbles as if unbalanced lacks power but NEVER stops completely. NO fault codes and mostly fixes itself within a few km . Very ODD. And while my profile says NJ I'm actually from NEW ZEALAND!!