1999 ec300 wont idle. uk
 

went to look at one the other week and it wouldnt idle. im new to 2 strokes and dont like carbs. i am tempted to go and have another look and have a fiddle with the idle speed screw. do you think thats worth a go? I got him down to ?1000 its a bit tatty but seems ok other than this issue.

When you say "won't idle", does the engine rpm drop off and stall or does it try to "idle" at half throttle?

it cuts out. you have to apply a bit of revs to stop it. i think the lads been running it on choke :-/

Surely if it was just the idle screw he would have wound that in himself? Reeds, crank seals, or worn top end maybe. Or just crap in the carb, old fuel ect. I'd proceed with caution. :D