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80 KZ440B Carbs
- pjed
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Question on 80 KZ440B carbs. The PO changed the jets on the bike and installed velocity stacks. The bike is REAL cold blooded...I have to feather the clutch when taking off from a stop in the first 5-10 minutes of riding or it will die. I'd like to try pod filters and a change in the jets. Can someone confirm the appropriate jet size (main and idle?) with pods?
Also, the PO fabricated an exhaust can for the bike that is very loud and guessing creates less back pressure than stock. Is that going to be a real factor as well?
Thanks,
Paul
1976 KZ400 D3
2008 Kawasaki Ninja 250 (sold)
2005 Kawasaki ZX6RR (sold)
2013 Harley Davidson 883 Iron
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- bountyhunter
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1979 KZ-750 Twin
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- pjed
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1976 KZ400 D3
2008 Kawasaki Ninja 250 (sold)
2005 Kawasaki ZX6RR (sold)
2013 Harley Davidson 883 Iron
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- bountyhunter
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OK, understand. It can probably be tuned to run halfway OK. I have not tuned a 440, but with pods and a very low restriction exhaust, you typically would have to go up two or three sizes on main jets and maybe one on pilot (that's a guess). You may have to screw with needle position to try to get the needle taper to track the new airflow profile. It will definitely give you a new hobby.:laugh:Can't go back to stock airbox...the bike's been significantly modified. Really hoping it can tuned with pods.
You may want to hang some kind of reasonable can on the exhaust. It will save your ears and be easier to tune.
1979 KZ-750 Twin
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- JMKZHI
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- loudhvx
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1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- pjed
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Any advice on a decent end can? Don't know what the stock one looked like but the one I have is a small megaphone style that sits under the right rear-set. I like the placement and look but want something quieter.
1976 KZ400 D3
2008 Kawasaki Ninja 250 (sold)
2005 Kawasaki ZX6RR (sold)
2013 Harley Davidson 883 Iron
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- flht1997
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Matt Milwaukee, WI
75' KZ400, (5) 78' KZ400, 76' KZ 750, 78' KZ650
78'CB750F, 78' CB550K
89' BMW R100RT
05' H-D Electra Glide
06' KLR650
Do it right or don't bother doing it at all.
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- JMKZHI
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Others have oft reported the difficulties of tuning the 440 for pods, including as mentioned some experienced vintage Kaw mechanics. Ya never know sometimes, though.
The 78 is a 400 w different carbs, so that example doesn't really apply.
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- flht1997
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you might want to run over to kz400.com and read a few of the carb articles over there lots of good info.
Matt Milwaukee, WI
75' KZ400, (5) 78' KZ400, 76' KZ 750, 78' KZ650
78'CB750F, 78' CB550K
89' BMW R100RT
05' H-D Electra Glide
06' KLR650
Do it right or don't bother doing it at all.
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- JMKZHI
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