1994 225hp johnson tach reading high rpms

ctswf

Chief Petty Officer
Joined
Aug 7, 2012
Messages
424
Hi,

the motor in question is a 1994 johnson 225 vro and the tach on the boat is a honda brand

at idol the tach is reading 3000rpms and at about half throttle its off the gauge over 7k

the motor sounds normal to me, although my experiance is limited im pretty sure its not nearly that high

I attached a picture can anyone tell me if this is wired wrong, the grey wire is on a number 4, this is a 6cyl motor, number 6 does not have a way to attach the wire...

cluld the tach be not compatible, or defective?

thanks, my buddy just got the boat this is how its wired
 

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boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Check with a Honda Dlr and see what they have to say about using the tach on an OMC product.
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
I don't believe you can make a 4-stroke Honda tach work with a two stroke.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
I would call Honda and ask them.. Some tachs are interchange able. .
 
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