RE: Saito FG-20 or 21
I bought one of these and put it in a Gee Bee R3 and will be test flying the airplane tomorrow .
I did have the same problems you guys are having and played with it about an hour then came in
and went right for my computer . Found this thread and read about the 4 1/2 turns on the low speed
needle which is also listed under support right below the engine manual on the product page .
Having enough light left I went back out and set the low speed and then the high speed and the
problem seems to be solved . I will post again after the test flight .
My experience with gas engines has told me that you always get the low speed needle right first
and then set the high speed . The instructions for this engine say the opposite . I paid very close
attention to getting the low speed exactly flush with the throttle linkage and then set the low speed
in 4 1/2 turns started the engine and then set the high speed . Runs great so far .Hope others find
this to be true .