RE: ASP FS61AR
My ASP FS61AR in a Thunder Tiger Ready
APC 12x6 propeller: 10,200 rpm.
Powermaster fuel: 15% nitro & 18% oil
Elevation: 3000 ft
Temp: about 60 degrees F.
Glow plug: OS F
Engine has a problem with mid-range. Runs rich between 1/4 and 1/2 throttle. Anyone else have this issue?