OS 55 AX mid range problem
 

Bax,
I have an unusual problem with the mid range on the OS 55. It runs perfectly at idle and screams at high end however when you set it at half throttle, it loads up and quits. Is there an adjustment to lean the mid range?
Paul

RE: OS 55 AX mid range problem
 

You'll need to lean the idle mixture a bit and then adjust the idle RPM to compensate. Usually, your difficulty is caused by a too-rich idle mixture and a too-low idle RPM.