ox66 questions

[Rlbol]

Where do I attach the tubing from the water pressure gauge on a 97 ox66 ?
I have looked through manuals as well as all over the engine and cant find the connection any where.

I also need to run tubing up to the console for the speed tube. what size tubing do I need?

I am also looking for wiring instructions for the multifuunction tach and speedo but I cant locate any model numbers on either side of the gauges?

Last question, I am moving my batteries, what gauge and can I get the nice Yamaha conected wiring to replace the existing?
thanks

[bigfish1229]

if you look atop the heads you will see a ss plug on each side remove one of those and install a fitting there for the wster pressure guage

[boats.net]

Water pressure port.
V4-V6 WaterPressureport.JPG

Use like 1/8 tubing for speedo hose. Wire size depends on length of wire probably need 2 gauge.
6YRW0035F2Wiring.JPG

[Rlbol]

Thank you both so much!!
one more question
is there a way to adjust the friction on the throttle on a yamaha 703 throttle assembly? mine is so lose if you take your hand off it goes back to idle.

[bigfish1229]

there is a screw on the frint of the box, this should work for you