srv220

I need help! I either need to replace or repair my throttle controls. However, there’s several wires which I have zero idea of what they are? Does someone have any knowledge about these shift/throttle controls? Thanks to any and all who are able to help me.

I just purchased a 77 Sea Ray SRV 220 Hard Top with a 351 Ford and 235 OMC outdrive, a classic style that I've loved since I was a kid... Drive engages, Reverse sometimes engages, and then Drive and Reverse will not engage. Any thoughts as to what the problem may be? Also, where can I locate...