Ox-66 rigging?

[Rlbol]

I am rigging the new to me 99 ox-66 250. Does anyone know where I can find the rigging guide? Either to just read as PDF or download?

I am running the multi function speed fuel management gauge, if I go with the multi function tach will that also cover water pressure or do I need a separate water pressure gauge?

Also what is the best way to hook up 2 batteries? 1 set of battery cables from motor to 2 battery switch and control them via switch or run two separate battery cable from each fuse on the engine to each battery? I understand with each battery wired direct to engine fuses it will maintane the charge on both batteries but yu will have no on and off switch electrically. Verses a battery switch you can just switch to off?

Last question, if I decide to run two ox66 engines. My boat can handle 2 25" motors. I currently have one normal rotation 25" and one normal rotation 30" motor. Could I just replace the mid section and lower unit on the 30" motor and have a counter rotating 25" motor or is the counter rotation in the motor not jut the lower unit?

Thanks again for the great site and all the help!!

[boats.net]

Tach does not show water pressure, will need water pressure gauge.
Connect positive battery cable from engine to common post on battery switch, connect positive cable from each battery to #1 post and #2 post on switch and connect a jumper ground wire between negitive posts on two battery.
Would have to remove extension case, change drive shaft, shift shaft and water tube to change shaft lengths.

[Rlbol]

So I am finally getting around to rigging the new to me 30" ox-66
I was planning on running a newer speed/fuel multigauge which also connects to the fuel management hardware. I was told this has taken the place of the separate fuel management gauge? Which I hope is correct? I am also running the yamaha tach and going to install a water pressure gauge.

If I were to replace tach with the multifunction tach what would I gain in functions? Here is a picture of the current gauges.



The next problem I am running in to is the connections on the engine. I believe one is tilt trim and other set of wires is oil to the gauge? I have posted the pictures of the engine side as well as the wire harness side from gauges. Is there an adapter to connect the different connections or do I need to find a different harness or cut and splice?


These are the engine connectors above.


Above are the harness side connectors. One is the green plug with yellow,yellow/red line, green, and green/black line.
The second picture and connector are just push male/female connectors. There color wires are orange,grey ,pink, and black.

And last question for the moment I am sure!
The battery cables are from yamaha and have a large black wire maybe 4 gauge, and red marked wire about the same size and smaller size wire. Maybe 10 gauge crimped with two red wires that fit in to the large circuit fuse on the engine. On the other end of the battery wiring there are the two red and black wires that will connect to the battery switch but them the smaller wire is about 4 feet longer and terminated with a battery lug. Almost like it is for a different battery? The lower large fuse on the engine does not have any connections just wires that are taped up going no where. I will post a picture of the engine large fuse.



In the picture the three wire yamaha battery cable connects to the negative on starter, positive goes to relay, then the smaller wire goes to a white fitting in the upper large engine fuse. So what is the best way to hock the battery switch and two batteries up?

1) negative from engine starter to negative on battery switch then negative pole on switch to both batteries. Large positive wire from engine relay to engine post on the battery switch. Then 2 positive cables from each battery post to there posts on the switch? If that is correct what do I do with the smaller positive wire from the engine large fusses? What is the purpose of those fusses if not connected?


Thank you again for a great informative website and all your knowledge!

[Rlbol]

This is the picture of the engine large fuse block

[rodbolt17]

those engines have a built in battery isolator.
its used for charging a house battery seperatly from the starting battery.
two ways to do this.
place the isolator and the engine positive together and both will charge 1 battery.
or using a 1,2 and all type switch run the isolator to batt 2,run the engine lead to common and use batt 2 as a house and 1 as starting.
that way if needed you can use all or two for emergency start and using the radio and lights at anchor(switch in position 1) you cant drain the starting battery.

[Rlbol]

Thank you once again!
I will hook the positives through the switch

What do you think about the harness connectors? Do you have a listing for an adapter?

[boats.net]

To connect thoise gauges to that motor would need 61A-ADPKT-94-93 Adapter Harness
But if you change gauges then would need a different adapter depending on gauges used.