can't say anything about your tach setup, but for the start situation, obviously you wired something very wrong - need to work with the wiring diagram carefully, you probably have some wires to the wrong terminals on the switch

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics