This is the O.S. Max Two-Stroke 1.20AX Ringed Engine with Muffler. Needle Settings: High Speed: 2 - 2.5 turns out from fully closed Low Speed: 3/4 turn out fro...More

This is the O.S. Max Two-Stroke 1.20AX Ringed Engine with Muffler. Needle Settings: High Speed: 2 - 2.5 turns out from fully closed Low Speed: 3/4 turn out from fully closed with the throttle fully closed COMMENTS: For version without muffler, order OSMG0651. The version without the muffler does not include the muffler extension or the 90¦ adapter. At this time one would not be able to use the muffler extension and 90¦ adapter at the same time. The long muffler bolts are too long. jxs 10/25/05 Updated JBM 12-20-05 updt WM 11/29/05 ir/jxs updt lmm 3/30/09Less