Bugaboo wrote on 09/20/08 at 21:42:52:Thanks. Actually, I've had my Savage for 8 or 9 years. It seems like it is revving higher and working harder than before the modifications.
With the new muffler you are getting more sound from the exhaust and engine, and all that
extra mechanical sound makes it SEEM like it is working harder.
from your previous post the engine is running fairly well but a little on the hot side. You said that there are no hard core backfires so the pilot circuit is pretty good. You could check the pilot air adjusting screw again just to make sure it is set perfectly. It is easy to do; just ride the bike for 5-10 min to get it good and warm; then stop and with the engine at idle turn the screw R & L 1/4 turn each way and see if the rpm increases any. If it does, go to the higher rpm setting, then turn another 1/4 turn in the same direction and see if it increases rpm any more. And so on. When you get to where the rpm is maxed out (you can turn the screw 1/8th or 1/16th turn to fine tune) then the pilot is set to the best place. If at this point the engine rpm is higher than you would like then use the idle adjustment screw on the other side of the carb to lower the rpm to the desired speed ... about 1100 rpm.
Now to the midrange... needle adjustment. I suspect that you may be running a bit lean in this range. In order to adjust this, however, requires the carb to be removed and disassembled. So, do you want to go there or not ?
Of course, as mentioned already, you can remove a couple of discs on the S/T and that will help to richen the mix slightly across the board.
Got to go for now.