On cold days (45 degrees or so) this winter my '02 R1150RT started doing something weird. I had not been able to ride it for a few weeks, but on one warm day I went out to crank it up and go for a spin but the clock read 0:00 so before I cranked it up I put it on the charger for a few hours until it was charged. Cranked the RT up, set the clock, and away I went. I went out a couple of more times in the next few days and all was well.
Another cold snap, and the bike sat for a couple of weeks until the next warm day. Again the clock said 0:00, but I heard the fuel pump kick in, so I tried the starter. Started right up! Set the clock and went.
Another cold snap for about a week, then warm. This time the clock read right, and the bike started fine, but the clock dropped back to 0:00 when I hit the starter. Reset the clock and rode off.
Next cold snap, and the clock was back to 0:00, but the fuel pump whined and started ok.
TODAY I cranked up the bike (clock read correct), ran about 5 miles on a errand, parked and went into the store and when I came out the clock was back to 0:00. I hit the starter and it fired right up. That running engine sounded good. I double checked the heated grip switch, and looked it over but could not find any electrical drain left on. Back home I let the RT sit for a hour or so and it fired right up and the clock still read OK.
The Question Is...Do the clocks on the R1150 RT function as a "low battery indicator"? Does it take more amperage than a starter??? I do have to say that I am planning on dropping a new battery in anyway (already have it in the garage) because the previous owner said that he had replaced it but did not remember when; but this clock thing seems curious. My guess it is due to a drop in amperage, but why would a digital readout shut off when there is still enough power to crank a R1150 engine?