The design of the valve train was the first experience for Yamaha motorcycle engineers, therefore the technology was transferred from the Automobile Division in Yamaha. Although the cam arrangement was changed from DOHC (2000­GT) to SOHC, the diameter of the valves, valve angle, valve stem dimension were taken over completely. For example the valve retainer is the same part as on the 2000GT.

(Note: If you are travelling in the Netherlands you can visit the Nationaal Automobile Museum in Raamsdonksveer (near 'Breda), which is owned by the Dutch Toyota Importer, and you can see the only 2000GT's in Europe and further­more the Toyota "7" racing car, which was totally developed by Yamaha, and which has world's first twin turbo charged 5 litre V-8 racing engine).