Garmin 60c Randomly Shuts Off... in GPS technology and devices Posted September 19, 2006 I tried using the remedy you speak of just a couple of months ago. It worked flawlessly until about 2 weeks ago. Now what is happening is the added pressure (coupled with high RPM's from the motor - my bike is at 6,000 - 7,000 RPM at highway speeds) has worn off the golden-metallic conductors on the green circuit board. My next trip is to have a drop of solder added to each of the two contacts on the circuit board to create a better connection. This is very annoying and I hope GARMIN can come up with a HIGH RPM solution sometime soon, as I love riding with navigation.