[DML] Tachometer incorrect

[stephen.liggett@xxxx]

My tach appears to read 50% of what it should. That is, when it reads
1000 rpm my outboard tach reads 2000 rpm. Interestingly, when the key
is off the tach reads 1000. When the key is on it reads 0.

I'm wondering if there are some things that I can check to see exactly
what the problem is. If I need a new tach, has anyone rebuilt one? 


Steve Liggett