Trying to learn to sync my carbs as I work through some of the issues on the bike. I read Snowbum's great article and am following his advice. I bought a carb sync tool but can't seem to figure out where to insert the hose on my carbs to take measurements. Any thoughts? Pictures here:

https://66.media.tumblr.com/ca5adf12...rlqs8z_500.jpg
https://66.media.tumblr.com/1c4e52df...rlqs8z_500.jpg