What service tach do y'all use? My calibrated ear drum is getting a little waxed up and I'd like to actually verify the speed settings I have been using. Be good if I could locate a tach that would work for 1 cylinder and two cylinder engines. I have a Case Ingersoll tractor with a Briggs & Stratton 2 cylinder (that fires both plugs in tandem).
Thx,
Ray L.
Thx,
Ray L.