2003 wide glide , 88" , stage 1. on the way home from a ride I notice my speedo at first not working , then start working but lagging in accuracy. I come to a full stop, its shows 20kmh then drops to 0 a few seconds latter. I take off and it takes seconds before it starts to register and seems to lag behind in actual speed. battery terminals are tight. signals self cancel. idle is a bit erratic but seems to start and run fine. took voltage at battery tender plugin and reads 12.6 with motor off. go to take voltage at plugin with motor at idle and digital volt meter is bouncing from( 12 -14- 17-11-15-18)volts as soon as I get the meter close to the tender plugin to take voltage. I replace battery in meter and still does the same.(meter is picking up spuratic voltage without the prongs touching the + - terminals, how can this be possible?) ive taken volt reading at tender plug in to check the stator operation in the past (14.5 @ above idle )no issues. then I take voltage at battery terminals with motor running and meter bounces as prior, when I try to take reading at tender terminal without the prongs even touching terminals. whats going on here? vss? voltage reg? stator? why is my volt meter picking up volt readings as soon as the prongs are close to the battery or battery tender terminals with motor running but works normally with motor off.