kz750 n2 spectre vacume problems

i need to put a vacume line on the fuel tap but i dont know which carb or carbs to put it on. any help would be greatly appreciated

My four cylinder Mikunis have a capped hose fitting on each of the carbs. They are meant for hooking up a manometer to fine tune the carbs. I just used one of those.

I don't know which carbs you have though....
Perhaps they don't have the same hardware.

If you see any capped hose fittings, pull one to see if you create a vacume leak. then use that.

Or pull and replace hoses 'til you find one tha creates a vacume leak, the get a T-fitting and splice your hose into that one.

Just a couple of ideas.

If the carbs are Keihins then attach the vacuum line to the nipple on carb #2.

I have always picked up a T fitting at an auto parts store and tapped #2 and #4 carbs for vaccuum to the fuel petcock.....chris3

thanks for all the input. i am going to be workin on the bike tomorrow. i will let you know how it works out.

well, i got everything done to my bike that i wanted to do. I installed the vacume line for the petcock, fired it up and runs great. i thank all of u for the help, i really appreciate it

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mike