Dr.Ben Elite Veteran Location: Richmond, VA, USA
| Ron lund might have on up on his website. For now, though, the smaller of the two needles is the high speed needle. The larger one that sticks out a bit further is the hover needle. To start, adjust the high spped about one full turn open and the hover needle about 1 1/2 -1 3/4 turns open. The motor will be on the rich side with these settings. As you work the needles in, the high speed will end up at about 3/4 turn open and the hover needle will be about 1 1/2 to maybe 1 1/4. Idle needle is the little screw in the side of the barrel. Adjustment is entirely conventional, with out being richer and in being leaner. If the needle is a bit further out than flush with the side of the barrel, you'll be at a starting point from which you can adjst for best idle.
As you tune the hover needle, remember it will affect the WOT mixture. Work both needles in carefully to avoid gross mixture changes in the transition from hover to WOT.
This is a set and forget motor once it's even close to broken in.
Ben Minor |