ConservationNation
ArboristSite Member
So I bought a new 390xp last week, and I've been trying to figure the carb out. I have always tuned in wood, getting it to cut clean and 4 stroking when the load is lifted. I can't seem to get my 390 to 4 stroke though. I set it at the richest the cap would allow and worked my way up to the leanest the cap would allow (maybe 3/4 turn). I couldn't hear any change. Maybe I was sitting at the limiter the whole time? Maybe it runs so much faster than I'm used to that I can't recognize the sound? Any advice?
I set it as rich as I could, and just went ahead with my day as I was already in the field. Probably going to bring it to my dealer and just have him do it, but I'd really like to know how to mess with it for future reference.
Thanks!
I set it as rich as I could, and just went ahead with my day as I was already in the field. Probably going to bring it to my dealer and just have him do it, but I'd really like to know how to mess with it for future reference.
Thanks!