tachometer question

cadester

Seaman Apprentice
Joined
Feb 12, 2011
Messages
36
I have a 4 cyl omc inboard, my tach is a us marine, on the back of the tach it has 1-4 postions, its set on 2 is that the right one for a 4 cyl engine? or does it go by the number of poles on the alternator?
 

Howard Sterndrive

Rear Admiral
Joined
Nov 5, 2008
Messages
4,603
Re: tachometer question

pos. 2 is correct for 4 cylinder 4 stroke
it is not connected to the alternator
tach runs off ignition
 
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