vacuum pipes

Hi all, im new to the forums, I have searched but not found what im looking for, I have a KZ750e2 which im currently fixing up, it was standing for a long time before I got it and im at the point of balancing the carbs after stripping and cleaning, it started and idled at the first push of the button so im pretty happy about that, my question is the bungs that I take off to fit the vacuum guages to, my KZ has a pipe from carb#2to #3 and a pipe from #1 to#4 which is T'd to the petcock is this normal? Im assuming I take these off and fix the vacuum guages to these? Apologies but I want to make sure im doing it right as ive never done this before, thanks all

Do you have a manual?
Steve

Where are you MrMower - what country model do you have ?

Im in the UK but the bike is a US spec imported here last year, ill try to upload the pic of carbs without the pipes on them, I do have a haynes manual steve but it doesnt cover these pipes, ive read that sometimes they just have bungs on, or 3 bungs and a pipe from#2 to the petcock so I'm getting confused

Hi Mr. Mower,

You'll need to switch the petcock to the prime position so that fuel will flow without a vacuum signal while you are using the gauges. There's nothing wrong with the way the bungs were plumed. You can return them to the way you found them after you're done balancing the carbs.
Welcome to KZR!
Bill

MrMower there are several DL's for Kawasaki KZ 750 Manual on net - i have it if you cant find one - 44 meg covers all models 1980 - 88. Go real slow with your adjustments and small adjustments - give the throttle a little blip in between adjustments and let gauges settle and check before you continue - doesnt sound like you are far out
Adjust at "slightly" above normal idle - do you have another fuel supply ? - might need it first time but can usually do it with fuel in bowls when they are close to sync. Go real easy when you nip up lock nuts - can throw out you sync.Try to get all gauges less than 2 cmHG difference to each other -
1 - adjust left adjuster first - get 1 and 2 same or very similar
2 - adjust right side adjuster - get 3 and 4 same
3 - adjust middle adjuster to get 1 / 2 as close to 3/4 as possible.
Have a fan on front of motor if it is taking a while - dont forget to switch fuel tap back to on after you have finished
Hope that helps mate.

Thanks for the replies, I'm trying to do most of this by myself and have lurked on these and other forums for a long time, the first thing I did was buy a manual and it helped a lot with all my wiring how to get the carbs off etc, not knowing the po meant I wasnt sure what he she may have changed from standard so thst was why I asked about the pipes, originally thr T'd pipe to the petcock had a bolt in it, im not young but this kz is the first bike since 1990 when I sold my KZ 750 L, im really enjoying my time in the garage with this, thanks again for the help everyone

Typically in the USA: the #1 & #4 vacuum ports are for the Kawasaki clean air system --- tubing is routed from those vac ports to the clean air smog stuff. The #2 vac port is for the petcock & #3 is capped w a rubber vacuum cap.

If your bike does not have the clean air system, you would cap 3 ports. use automotive vac caps.
And if there's no smog stuff and it has a manual fuel valve, then cap all 4.

From your description it sounds like there isn't a clean air system or it's disabled.
And the bolt stuffed in the tubing is goofy. not completely uncommon, but still goofy.

None of that pollution crap here - beauty of fuk all people i guess

He said the bike is an imported USA model. I don't have a problem with the system. When functioning, it doesn't hurt anything --- I don't think it has any effect on engine performance & the thing might actually do some good, burning raw fuel & gases n stuff. If it tests defective, then I could either chuck it or get a vac switch valve from a late model ZR750. I guess if no vehicles etc had the smog control stuff, we could all live like they do in Beijing.

Going to my daughter's the other day reminded me of what it was like in the 70's. Going down that grade towards LA, the smog hung like fog. Stink. :sick: Smells so bad it burns my eyes. In China there are millions of bikes every day, here just a few. A good running bike will put out less than anything else on the road. They choked them up so much, they ran like crap until hot, then put out even worse emissions. That's the lib. way. Try to fix something by making it worse.
Steve

WTF are you on about csr - you have to put up with that pollution shit - we dont.