Originally Posted by
cdrc1
Having an transition problem with my Saito 100. It is mounted upside down in a TF warbird; has a OB glow driver, and a pump. When transitioning from idle, the engine is sagging around mid range and then some times just stalls. If I slowly take the throttle up it seems to be fine. At high RPM is running around 8900 RPM. Also the high speed needle is very sensitive to adjustments. Checked the valves and they are good. The low speed needle is in along ways which is interesting. If I run slightly rich on the low speed it floods easy at idle and will stall. Any ideas?
Sounds like too much pump pressure or your glow driver quit working. Is this a new problem with an existing set up or a new set up? What prop? What pump?
If it's a new problem I'd try a new glow plug first. If that doesn't fix it I'd bypass the pump, disable the glow driver and retune. You shouldn't need either to run your fa100 in a TF warbird unless they botched the fuel tank location.