Bought a Accu Tach used and ran only 8 times and I ran it 1st time and worked well after Hot Laps/Heat Race but I guess battery was low and would not work after A Feature.
Changed Battery and ran it a 2nd time and worked well again after Hot Laps/Heat Race but would not work after A Feature.
Wondering if it might be grounded wrong or something draining the battery??.
Run a Vertex Mag and white wire run to side post of mag and ground wire run to back of head on motor, should that matter or should I ground it to the chassis??.
Anyone advice?
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