Hi all,
I bought a Stihl 390 today, at a nice price, now I'd like to ask a couple of questions.
1.) I'm planning on breaking it in with 3 tanks of fuel tomorrow and some easy cutting, any other suggestions?
2.)I plan on opening up the muffler afterwards. I plan on simply cutting out a rectangular piece of the muffler to give the exhaust a straight shot out, and trim the outer cover accordingly. I plan on keeping the stock screen in place for now. Any suggestions?
3.)Do I need to adjust the fuel mixture after the muffler is cut? This is the part that I am most concerned about. How do i adjust the idle mixture to prevent over-revving? Came some one give some basic directions on adjusting the mixture screws?
Thanks in advance.
Andy1234
I bought a Stihl 390 today, at a nice price, now I'd like to ask a couple of questions.
1.) I'm planning on breaking it in with 3 tanks of fuel tomorrow and some easy cutting, any other suggestions?
2.)I plan on opening up the muffler afterwards. I plan on simply cutting out a rectangular piece of the muffler to give the exhaust a straight shot out, and trim the outer cover accordingly. I plan on keeping the stock screen in place for now. Any suggestions?
3.)Do I need to adjust the fuel mixture after the muffler is cut? This is the part that I am most concerned about. How do i adjust the idle mixture to prevent over-revving? Came some one give some basic directions on adjusting the mixture screws?
Thanks in advance.
Andy1234