I have stripped my carb on a Hayter Harrier 41 and put it back together, at least it now runs, but it hunts with revs going up and down and I can see the idler rocking back and forwards in time with the revs I think I have put the spring likage arms back in wrongly does anyone have a photo from the top showing where they fit? Mine is a Tecumesh autodrive 3.5hp about 10 years old.
Thanks

Ray, April 2011

Sounds like it's loping. There is a small screw which can adjust the air fuel mix. That should fix it but it may be caused by an underlying problem such as fuel blockage.

Jules, May 2011