Yamaha - one engine - two tach's, false readings

[TonyNoriega]

I recently finished the installation of a helm tower on my Pathfinder with a (year 2001) 200hpdi and I used the wiring bundle from one half of a Yami dual engine installation. Everything works great with one exception:

Both tach's are giving me some incorrect info. The RPM reading is good but both have a blinking low oil indication (and I'm sure the oil is fine) and also, the trim indicator is way off. The two tach's are a little different - the orig is a 2001 and the one I installed is a 2003. Also, I'm assuming the dip switches are set correctly since the 2003 was used on a 2-stroke.

Before the installation and connections the lower tach was displaying just fine....no blinking and an accurate trim indication.

Does anyone have a clue to what the problem is???

Thanks in advance!!

Tony in Tampa

 

[rodbolt]

Re: Yamaha - one engine - two tach's, false readings

never assumje anything, you will most likly be wrong.
switch settings for your engine are 2 stroke,12 pole and 2 wire trim. 1=on,2=0ff 3=on

 

[TonyNoriega]

Re: Yamaha - one engine - two tach's, false readings

never assumje anything, you will most likly be wrong.
switch settings for your engine are 2 stroke,12 pole and 2 wire trim. 1=on,2=0ff 3=on

Yep, assuming stuff has gotten me in trouble before! I'll pull the tach and check out the dip switch settings.

Thanks Rodbolt!

 

[TonyNoriega]

Re: Yamaha - one engine - two tach's, false readings

Well here's the conclusion of the problem:

A friend of mine had a Yami tech come over and he found the problem right away. When the upper station tach was installed the connections were reversed! I had actually thought about checking that out since the connectors are identical (with different colored wires) but I was hesitant to do it for fear of frying something (I'll stick with fried snook and redfish!).

So once that was corrected, the trim indicator still wasn't working.....that was just a matter of loosening the sticky sender at the motor. I'm a happy guy now!