For those of you that have the Evo Motors, what cure is there for the needle valves backing out on the rich side. I have two that does the same thing. A 46 and a 1.00. I am pretty much satisfied with performance and such but this little problem keeps them from being a great engine. I know I could buy another brand of engine but I am sure someone on the board here has come up with a fix for this problem. Any help appreciated.

Thanks
Rustybucket

The ratchet spring is loose. The one from OS will fit but you could get new ones from Horizon or Hobby People.

They are all the same

http://www.horizonhobby.com/Products...odID=EVO100833

http://www2.towerhobbies.com/cgi-bin...?&I=LXCU03&P=Z

http://www.hobbypeople.net/gallery/281901.asp

I take forceps and stretch a short section of TYGON fuel line over mine. Also, eliminates any possible air leaks.