My speedometer kept working! It was only its odometer that froze up.
Chatter on the Classic Motor Works Community Forum tells me that the original equipment speedometers do tend to die at about 40,000 miles.
One forum member, Singhg5, pulled his speedometer apart to see what makes it tick.
"It is pretty much non-serviceable," he wrote. "It is like a fine clock/watch with small, delicate and precise parts inside. ...A small change in its parts or misalignment or loose joint can mess it up. It can't be put back together."
Singh5g posted a helpful YouTube video on how he replaced his old speedometer with a new one.
I decided first to examine my speedometer cable, to make sure it was not the problem. What a surprise I got!
|Speedometer cable on my 1999 Royal Enfield Bullet was begging for trouble.|
View into the nacelle is from right side of the motorcycle facing forward.
Secondly, turning the handlebars to the right pinched the speedometer cable itself between the stops on the frame and forks. The cable's outer sheath was slightly kinked and rubbed down to its metal at the point of contact.
Since the speedometer continues to work, I re-routed the cable back into the nacelle in a way I hope eliminates these two problems.
Even though the outer cable is slightly bent, the inner cable appears to turn normally, so I may put off replacing the speedometer and its cable until the speedometer, too, quits working.