My 2000 R1100R has always had a slow crank in warm weather or cold. New battery, didn't make a difference. It just doesn't seem right that a big engine would have a starter that just barely cranked enough to turn over the engine.
Here's what I was going to check: Ground connections, starter button contacts and connections on the starter.
Any other things I should consider? Oh and the alternator belt was replaced at about 44k it now has 55k on it so I don't think that's the issue.
Or is it just time to get the starter rebuilt or a new one? My mechanic didn't seem to think it's a problem...but he's not going to be the one stuck out somewhere with a non starting bike.