Yamaha has recalled all '03 through '05 FJR1300 models (Link). On certain motorcycles, an improperly designed throttle position sensor could cause an intermittently unstable idle when the engine is at idling speed when the motorcycle is stopped or during low-speed operations. The engine could stall as a result. If the engine stalls after the operator disengages the clutch in a low gear while riding, the rear tire might slip momentarily if the operator abruptly re-engages the clutch. 39,000 motorcycles are affected.
https://motorcycles.about.com/b/a/257717.htm
Could this explain Ron's accident??