Other Rickter Fr-2 Question

[Dega]

Hey guys startred my build a while ago, but got a quick question sorry if this is a stupid question but its my first build.

In this first pic i have 5 pipes that go from the insdie of the ski back wall to the outside to the pump area, im not 100% sure what each one is i did a light test and from that i can see only 4 of the 5 holes go to the back im not sure where the other one goes.... The one that dose not go to the back of the ski is #4

1. Trim system?
2. Water line?
3 Water line?
4. Do not go to the back of the ski not sure where it goes.....
5. Steering cabe?

Silver pipe trim?
Black pipe to Brass fitting?

Black pipe to brass fitting?
Black threaded pipe for steering system?

Any input you guys could give me would be great thanks so much.

 

[eastcoastjumper]

#1 steering cable, #2&3 water to motor and pump, #4 or 5 is for your trim setup, I used # 4 so the cable was in the right spot. #5 looks like an extra for another cooling line if you have a 1000cc+ motor.