help with OS .46
 

My Os .46 run great on my trainers. now it is on my fun star and is runs great on the ground but once i get in the air it runs fine for about 2 min and then it just bogs down and i have to keap it under 1/4 throttle or it will stall. could it be that the OS.46 is nearly inverted. Please help.

RE: help with OS .46
 

No, inverted isn't the problem, but something else is. It sounds to me like you have it too lean on the high-speed needle. The ability to run OK at low throttle settings, but not at full power, suggests a lean condition, or overheating (which could also come from being too lean). Did you ever overheat it in the past -- this can also cause a failure like the one that you described. Another possibility that I hesitate to mention is a peeled liner. Or it could be as simple as something may be wonky in your fuel delivery system (tank, vent, fuel lines).

Good luck