Ok I was trying to sync my carbs on my 98 600 and on the third carb port (the vac tube going to the tank) do you use the brass tube that comes with the kit or the nippel comig out of the head? I tried to get the nippel out and couldn't! It's still all apart so let me know what you think by Saturday!

Just put the hose that goes into your gauges straight onto the nipple that is already in the carb

ok I only asked because it looked like it was a different diameter. Thanks