The big Suzuki was never built to win a 1/4 mile drag race, never a top-end race, and was one of the heaviest motorcycles out of Japan for the time. The GT750 engines were Water-Cooled 2-Strokes yet among the quietest engines ever installed in a motorcycle. The water-cooling allowed for closer tolerances between the pistons and cylinders plus the thick water jackets in the head and cylinder bank (one piece) made them almost sound-proof.