Probably asked over a 1000 times but... I have the White bros R-4... K&N filter.... I didn't think I would need to spend the money on a whole jet kit when I can just buy the Mikuni jets that I need. But does anyone know what that jet size should be on the main and do you think the primaries need any changing.... I don't think so but????I'm in Phoenix area and at about sea level but I do want to go to the mountains at around 5000 feet in Flagstaff later in the summer.[img]i/expressions/face-icon-small-confused.gif[/img]

 

dude just buy the whole kit thats what i do with all of my quads[img]i/expressions/face-icon-small-happy.gif[/img]

 

does the kit tell you what sizes to use at different elevations or is it all trial and error???

 

call the 800 # for Whitebrothers. They've sold tons of pipes and, could prolly tell you exactly what you need better than anyone.