Author Topic: What can anyone tell me about the 1984 Kawasaki KZ700? (bought it, need help)  (Read 16004 times)

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Offline joesmotos

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It makes a huge difference..if the carbs are truly clean and you have a stock airbox on it,it should start and run on the choke but thats about it..

those bikes run REALLY lean(to pass emmisions at the time)and removing the airbox or filter really aggravates the situation..

You MIGHT could get it to work ok with a jet kit with those pod filters but if its all stock running the airbox is the way to go..

I had also seen people stuff rags under the seat(for what reason im not sure,maybe they just liked having a rag handy) but it ended up blocking off the air intake..once saw a KZ440 that had sucked the rag into the intake and it got stuck under the intake valve..which was actually pretty humorous(to me anyway)...

oh yeah one more thing i just thought of....on the carburetors,theres a hose running off of one of the carbs to the vacuum fitting on the fuel petcock...if its not hooked up,or plugged off,you will have a massive air leak to that one carb which will make the bike run like doo doo..are there little rubber caps on 3 of the carbs covering the tubes you hook up to to synchronize the carburetors?Or one hose that connects all 4 carbs together with little *t* fittings?(THe 4th one will have a black hose that goes to the gas tank petcock,it supplies vacuum to the petcock to make it open in the *on* and Reserve* positions..

When the petcock is in the*Prime* position it allows fuel to flow freely,but will run the tank dry if you ride it that way.

What im getting at is if any of those vacuum fittings are missing it will have a air leak and run bad or not at all..

So check those vacuum fittings on the carbs...

If you go one You Tube and type in *KZ750 carburetors rebuild* or something to that effect theres some videos i think..i learn all sorts of stuff from You Tube..

Offline joesmotos

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Heres a pic i stole off Ebay,where my custom red and yellow circles are...thats the barbs that you use for carb sync...in this pic theres no hoses interconnecting them but there is one hose coming off the # 3 carb(thats the one that hooks to the fuel petcock)...if youre trying to start the bike,using a remote fuel tank,all those barbs need to be plugged off..if youre using the stock fuel tank,then that #3 barb wit hthe hose can be hooked to the tank or plugged and the petcock turned to *Prime*(usually the center position i think)...

Offline nitsua93

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Heres a pic i stole off Ebay,where my custom red and yellow circles are...thats the barbs that you use for carb sync...in this pic theres no hoses interconnecting them but there is one hose coming off the # 3 carb(thats the one that hooks to the fuel petcock)...if youre trying to start the bike,using a remote fuel tank,all those barbs need to be plugged off..if youre using the stock fuel tank,then that #3 barb wit hthe hose can be hooked to the tank or plugged and the petcock turned to *Prime*(usually the center position i think)...

Why do they have to be plugged with a remote fuel tank and not with the stock fuel tank? I don't see how that would make a difference.

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Offline joesmotos

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I was saying that the barbs need to be plugged off..so theres no air leaks...

Ok let me start over...if you are using the stock fuel tank to feed gas to the bike....plug off all the barbs except the one that hooks to the gas tank..that one will supply vacuum to the fuel petcock,if youre just turning the petcock to *On* or*Reserve*If youre running it in the *Prime*position,fuel will flow from the petcock without vacuum.

If you have a remote fuel tank,plug all the barbs..hook the line from the remote tank to the fuel line from the carbs..turn it on..then you have fuel to the carbs.

Hope that clarifies things some..


Offline nitsua93

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I was saying that the barbs need to be plugged off..so theres no air leaks...

Ok let me start over...if you are using the stock fuel tank to feed gas to the bike....plug off all the barbs except the one that hooks to the gas tank..that one will supply vacuum to the fuel petcock,if youre just turning the petcock to *On* or*Reserve*If youre running it in the *Prime*position,fuel will flow from the petcock without vacuum.

If you have a remote fuel tank,plug all the barbs..hook the line from the remote tank to the fuel line from the carbs..turn it on..then you have fuel to the carbs.

Hope that clarifies things some..
Ah I gotcha! Thanks a lot man. Maybe with all this info I can get this sucker started this week!

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