I just moved to Santa Fe, New Mexico, located at 7000+ feet above sea level. My 1992 Honda Nighthawk 750 made the trip fine in a truck and seems to ride well, with enough power once it gets going. But it can be slow to fire up when I try to start it. There's plenty of juice in the battery. Do I need to adjust the carbs or choke? Thanks for any advice from others living and riding at high altitude.