I'm taking my Yamaha BansheeYamaha Banshee on a trip to the mountains next month. Right now I'm at sea level, and it's jetted perfectly for my setup (FMF pipes, K&N filter). The place I'm going is about 5,000 feet. I know I'll need to re-jet, but I'm not sure where to start. I've never done it for elevation before. Any baseline recommendations? Also, while I'm prepping, I plan to shop bikes for some extra spark plugs and a spare air filter just in case. Any other must-have spares for a mountain trip? I want to be ready for anything.