I've test run my OS91 for the first time this evening. It is in a Byron F16. 16oz saddle tanks plumbed in series. 5% byron fuel OS#8 plug.
It is slobbering rich at only 2.25 turns out on the high speed needle. I have not changed the factory setting on the low speed needle.
Floods really easy unless I pinch the line with hemo's until right before I hit it with the starter. I'm assuming that is because it is inverted.
Should I be starting this with the plane upside down?
Does anyone out there know what their high speed needle setting is?