Seafoam, Techron, Berrymans B12. If the bike is running well, mix it as the can says. Sluggish at idle. At least double the strength and take a can on the trip to use in multiple tanks.
+1 All good products. I like Berrymans Chemtool to clean things up. Periodically I'll mix a full can to a tank of gas and run it out the same day. Works for me.