Back in 1968, Yamaha XS-1 650 was the most advanced engine in its class. It has 654cc, 4-stroke, parallel twin, air cooled, SOHC, 2 valves per cylinder, which made it has 53 bhp at 7000 rpm. Below schematic illustrates the Yamaha XS-1 650 Wiring Diagram and Electrical System Circuit. The electrical system consists of: 12V 5.5AH battery, regualtor, contact breaker, condenser, coil, horn, tachometer, speedometer, headligh, high beam indicator, tail stop light, etc.
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