. Very neat Yamaha Waverunner GP 1200 with a 1,131cc 3-cylinder 2-Stroke Yamaha marine engine (135HP). Very neat Yamaha Waverunner GP 1200 with a 1,131cc 3-cylinder 2-Stroke Yamaha marine engine (135HP). Further executed with: Quick Trim Shift System, Yamaha Adjustable Sponge, Tarpaulin. 136 sailing hours. Price includes trailer! Specificaties: