speedo and trim tab help

boat4fun83

Seaman Apprentice
Joined
Oct 19, 2008
Messages
45
Just bought a new to me 2001 rinker fiesta vee 27 ft mid cabin. Had a new bravo 3 put on in 2013 due to sheared gears. All paperwork is accurate. My speedo doesn't work. Where should i start? I believe there is an input that is read on the lower unit to determine speed.

2nd, i have one trim tab that doesn't work. Im guessing its the switch. I can unhook it and manually extend and retract the mechanism. Can someone tell me how to test the switch short of completely swapping the two switches?
 
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