Frustrated,<br /> I have a Honda BF100 and it will only run wide open or at high rpm, as soon as you start to back throttle off to try and idle or Troll it dies and is hard to re-start. While the engine is running, If you pull choke on, the engine will rev up and run smoother, Or if you put your hand on carb. intake the engine revs up, Or if you spray carb. cleaner on any carb or intake gaskets it will rev up..Now to me that says it is sucking air bad somewhere ???. I've replaced carb gaskets and intake gaskets and still runs exactly the same, No improvment at all. What else could cause this ??, Why does it still act like sucking air, Can valve adjustment or timing cause it to act this way. I've worked on cars and Heavy trucks all my life and I usually figure things out eventually, but this one has got me.. Need help fast,, missing some good fishing. <br /> Thank You, HDCOHEE