i found a 1985 evin. 150 to replace 1995 evin 150, i thought i might get away without changing the controls, the '85 has sidemount controls and a tilt motor box. my boat is a center console, are the controls easily adaptable for these two year motors?? the guy thats selling the motor seems to think that i might not have to change the controls. i hope not, does anyone have any input on this? thanks