Welcome to the forum. I wouldn't worry about the impedence of the sensor as that is not a reliable test. The only valid thing that will tell you is if it's open (no connection at all) or shorted. I'd consider that reading you got to be in the normal range.
The easiest test would be to ride it until it dies again. After it happens, try to start the engine and watch the tach. No movement of the tach needle while cranking is a sure indicator that either the sensor is bad, or the wiring going to it is damaged.
For some odd reason, the computer does not throw a code when the starter is engaged but, getting no tach signal. I had a completely failed crank angle sensor on 1989 and no codes on the Examinator.
The same bike also had an intermittent road speed sensor that sounded almost the same as what you're experiencing. It would be fine most of the ride, on a cold day. On a warm day, it would get 70-80 miles before the speedo would quit. No other symptoms. Replacing it fixed it for good.
Greg
