RE: hangar 9 tachometer
I had a similar problem with the Hangar 9 tachometer. Im trying to break in a Saito .91 four stroke for my Hangar 9 Hellcat 60. At full throttle and the engine screaming, the tach only reads about 991. This is my first four stroke, so maybe I'm not used to the lower RPMs verses two stroke. I'll try the lamp trick to see if I can get a better reading.