SELETTRA NO 2019 analogue racing ignition - Yamaha TT, XT. SELETTRA Analogue ignition Yamaha TT, XT. The ignition works independently of the battery. And generates the spark itself. The coil is the brain of the whole system. This ignition doesn't re-charge the battery! Yamaha TT 500 (1976 - 1981). Yamaha XT 500 (1980 - 1981). Yamaha XT 500 L (1984 - 1986). Yamaha XT 500 T (1988 - 1989). Yamaha XT 500 Z Tenere (1987 - 1990). Coil + spark plug cap. With base plate in size 90 mm. With maximum speed: 27 000 rpm! The spark starts at 400 rpm. Your satisfaction is our priority! ...