Dual Outboard Trim Synching

[Eric314]

Greetings!
New member, first post.

I bought a project boat, a Chris Craft Stinger 314 whose repairs required to splash her are nearly complete, Yahooo!
It’s got a pair of 2001 Mercury XL (I believe) 2 stroke 250 outboards.

Ive never owned a twin engine boat before and would imagine that being able to trim both engines simultaneously would be helpful. The independent switches on the throttle handles work, but are a tad awkward to hit both at the same time.

Does anyone have any idea how to wire a separate switch to either: 1) Allow either trim switch on the throttle handle to run both motors together, or 2) Have a separate 3 position (momentary, center off) switch which trims both motors together?

Thanks all!

 

[dingbat]

Never really felt the need to have separate trim controls on twins.

My boat has a 3-5 degree running angle. I typically set a neutral trim and make minimal, if any corrections, throughout the day.

Any corrections to compensate for unbalanced loads, running angle, etc. are done using hydraulic trim tabs

 

[sam am I]

Add and turn on S3.......Using S1 or S2 (throttle switches or trailer switches) trims both, same direction, same time.......Turn off S3 and they go back to normal/independent. Assumes 3 wire trim motors

 

[Chris1956]

You may find that the motors do not trim at the same rate. So you will need to do final trimming independently.