AZLOGGER
ArboristSite Guru
- Joined
- Jan 20, 2006
- Messages
- 558
- Reaction score
- 125
Well I finally did it, converted a fairly good MS 290 to a MS 390 with a MM. I had a MS 290 that was straight gassed, P/C not good at all, so I installed a complete new 039 engine on it. I did a MM but as you can see a little different approach than some of you AS members have done. The original owner ran out of mixed gas, so he used straight gas to finish out a load of firewood (not a good oop:'n idea) he said that he didn't think a little straight gas would hurt it for a few more cuts (wrong). I also put the MS 390 carb on it along with a MM, I started it up to re-tune it and this sucker does not even sound like a STIHL chainsaw any more. Well better go out and find the sweet spot on the carb adjustment.