My 79' Honda Twinstar cm185t has a problem with its odometer. I went for a ride that was aprox 1.5 miles and the odometer box was making a strange noise like a high speed wind up toy. The faster I went, the louder it got, and when I'd come to a stop it would take a second, but the noise would go away. When I got back and looked at the Tripometer (which I had reset before I left) it read 177 miles. Has anyone ever seen this before?