Quote Originally Posted by Av8r3400 View Post
Yes the small line is for a manifold pressure sensor.

I had synced and synced my carbs with analog and digital manometers and could never get the midrange roughness to go away. Now it's gone. Smooth idle to 1400 with no chatter.


Very happy with the mod. No regrets.
Thank you sir! This is also the RPM range that I can't seem to get the 'shake' out. The roughness in that RPM, especially when I am over all the trees around my strip, is never comforting. If I can relieve this I would be a much more ardent Rotax supporter. It just bothers the bejeesus out of me when I am landing and the motor is rough.