I used the teleflex system for steering coupled to the seadoo cable. At the motor end of the teleflex cable I had to "engineer" a way to couple it to the Seadoo cable. I am out of town so I can't take pictures for you. So far it has worked flawlessly.
I used the Seadoo throttle cable coupled to a side-mount throttle lever I bought on ebay. Again, sorry I don't have a picture for you right now. The only issue is that it does not have a throttle stop so I can't slam the throttle to full. I ease it to full sensing when it is getting to full throttle. I might change this but it is working well so far.
I wanted to have the look of a "real boat" without using Seadoo Controls so it does take some enginuity to get the two to work together. But if you can figure out how to put a jet in an outboard design, you can figure this out also.
Good Luck,
KB
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