I have a chainsaw sthil ms661. Its simple. It has a button with 4 functions. The carb can be adjusted . Can I modify it to M-Tronic? Is it worth it or ?
I'd think it's possible, but you're gonna need several parts. Give a call to Nate, @fordf150. Unless I'm confusing him with someone else, I think he's swapped several 661s from manual to m-tronic. Maybe he's got some spare parts.