Have a 2000 skeeter with a yamaha 130hp. Trim switch on front of boat works both ways. Trim switch on motor itself works both way. Trim switch on the throttle only goes up will not trim down. have checked all the connections and fuses all seem to be good. When you try to trim throttle switch down the switch clicks but nothing in the relays or solenoids does. Anyone have any ideas before I start replacing parts?