Tachometer 4,000 RPM
2" round
std pt ign, 2 imp/rev ( 4 cyl )
6 volt, pos or neg grd
Note !   On pos. ground engines this will work with points only.  On neg. ground engines it will work with points or electronic ignition.
With chrome bezel 
6 Volt light kit 186-6A2 sold separately
 
Instructions