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Long time rider. First KZ750
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GPzMOD750 wrote: I'm using an infiltro filter.and I know emgo has one as well. I bought a Fram first but was warned very strongly not to use it as they are known to disintegrate.
A Fram filter is fine. Silly.
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- Jsolonka89
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Changed it per the manual I found under the seat. WHO KNEW. *also was the original warranty paper from 1983*
I also found a plugged vacuum line on the carb and a broken line off the petcock.
Well I replaced that hose.
Started the bike up and it idled extremely high.
Tweeked the idle screw.
Idle evened out with the choke off
I took it up the street and when I pulled the clutch in to shift my RPM's Sky rocketed.
Cut the motor off dropped in neutral and rolled my butt home. *thank god I live on a hill*
Attached are a few pictures one of the idle screw
One of the plugged line on the carb
The other hanging off the petcock.
Once home I started it up and the idle at neutral with choke off is perfect right at 1100.
Once reved it hung. Pictures are not in order but should explain themselves I hope
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- Jsolonka89
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Pictures
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- GPzMOD750
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You are describing a classic symptom of a vacuum leak. you need to check that all the vacuum lines that might be coming from the carbs aren't leaking or the ports are plugged. Also you need to make sure the carb holders (intake boots) aren't leaking. Make sure the clamps are tight and the rubber isn't cracked and they are tight to the head. Start the bike and let it idle. it will probably be fast. Take some spray carb cleaner and spray it around the boots and vacuum lines. If the idle drops or stalls yoy have found a leak. Most likely you will have to replace the boots and vacuum lines. This bike is 30 yrs old so it stands to reason.
Oh, BTW you need to download the service manual. I'd also recommend printing it out or buying a hard copy as well.
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- Jsolonka89
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Jsolonka89 wrote: I am not sure I have a original tank on this bike. I drained the tank and found there is no float mechanism. There are no wire's coming from the take to indicate that it has a fuel float. Any suggestions?
The 83 750L model bike should have a fuel level sending unit in the tank. Not sure what to suggest other than maybe shooting some photos of the tank from the underneath side so we can see.
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- SWest
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- 10 22 2014
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Steve
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- GPzMOD750
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It should look like this. (ebay listing out of The Netherlands for a KZ700 tank)
I just noticed you had tucking the tail light under the seat as a potential mod. I would discourage you from cutting the frame. You could adapt a ZR7 tailight like I did if you don't want the big glowing brick.
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- 650ed
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GPzMOD750 wrote:
I just noticed you had tucking the tail light under the seat as a potential mod. I would discourage you from cutting the frame. You could adapt a ZR7 tailight like I did if you don't want the big glowing brick.
Excellent advice!! Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Steve
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- mopguy
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I have a 1980 Kawasaki KZ750 Ltd. I bought new. I recently managed to get it out of my garage after 28 years and put it on the road again (2010). I feel like a kid all over again. Since I have acquired 3 78 KZ1000 Ltd, 1 1981 KZ1000 Ltd, and another 1980 KZ750 Ltd. Love the LTD's.
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