Hey I was wondering if anyone could tell me where to find a wiring diagram for my boat .  Its a 87 bass hawk.   thanks

You won't find one.

Boats in that vintage were rigged at the dealer.  In other words, the wiring was some basic stuff done at the factory with the rest of it done by the riggers after the purchase at the dealer.  There are some basic marine color coding used in the industry though it's not set in stone.

Grey usually is nav lights

Brown is for pumps

Red is 12v feed to switches

Orange is often 12v main

Blue, red and green are for trim

Black is ground of course.

There are others I've long since forgotten.  

Thanks for the reply cart ,Ill take a note of that.