Echo 4000 strimmer engine

[arabbadot]

The engine starts well but stops when full throttle is applied.
I have cleaned out the filters. I cannot seem to find adjustment screws which I presume exist to control fast/slow as well as idler speed. Can anyone help please?

[Clanad]

Check here: http://www.gardenguid...cho-line-trimmer.html

This procedure works for mine here in the U.S.

[arabbadot]

Thanks for the steer Clanad. Unfortunately on my machine I cannot see any adjustment screws apart from the idler screw. One feels so stupid .... But could you tell me where to look next..
Thanks

[HowardKennitby]

Do you not have a manual for this?

How about here

http://lawnandgarden..../mfg/echo/rm4000.html

[arabbadot]

Yes I have the manual but all the adjustment I can see relates to the idler screw. I cannot find any other screws, the idler screw seems to control the throttle only.