idling problem
 

Any ideas as to why my ec 300 wont idle very well after its had a little throttle and is then left to idle?:confused:

Most likely jetting. Air screw, pilot jet and needle are the usual suspects.

However, before you tweak jetting, check your spark plug to see if it is fouled.

I never got my 300 to provide a stable idle despite trying all sorts of jetting. I could get it to idle for a minute max. Rumour has it you need a leaner slide on some.