Advise on engine electrics PLEASE
While recently replacing battery box and battery (2007 Zodiac Pro Open 5.5) I very briefly connected positive to neg and vice verca. Now, engine (2007 Yamaha 100hp) would'nt start or trim and Yamaha guages d'ont display any info. Boat electrics fine. When I connected ignition to bilge electrics engine started but eventualy blew fuse. Can any one tell me what has gone wrong ? All fuses are ok. Any ideas on this problem would be greatly appreciated.