Upgraded from 2 stroke to 4 stroke Yamaha, need guages

brodmann

Chief Petty Officer
Joined
Jun 17, 2008
Messages
429
After many years and thousands of hours, I had to say goodbye to my '98 Yamaha 115. I've recently hung a 2006 Yamaha F115 4 stroke. I plugged my wiring into the "new" motors 10 pin harness and it fired right up. However, my 1998 6Y5 tachometer isn't communicating with the motor very well. My existing gauge is digital, but with only 2 switches or "dips" inside. I've been told that I need to replace the tachometer and probably run some wiring to the motor or use some type of adapter. I am currently using the existing harness from the helm back to the motor. Any advice on how to achieve what I'm looking for. I don't want to put it in the water until I know that I have functioning temp alarm, low oil pressure alarm and a tilt gauge would be very nice, but not entirely necessary. And yes, I'm a boater on a budget! The two things don't seem to go together though.
Thanks in advance for any suggestions you might have.
 
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