2004 hammerhead 150cc Dune Buggy Wiring Diagram? Jul 19, 2012Hello, I just picked up an 2004 hammerhead 150cc Dune Buggy and the Wiring harness and the seats were chewed to bits by a large rott =) Anyone out there have the Wiring Schematics for this buggy? I been searching all day on the net and found a few Close ones along with looking up gy6 schematics and have failed to get this thing back together. 150cc OEM Wiring Harness / Electrical - Buggy Parts Northwest 150cc OEM Wiring Harness / Electrical BPNW carries a wide variety of OEM engine parts. Parts from the diagram below can be found by clicking on the individual products.