81 kz650 carb problems, i think...

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02 Oct 2010 23:48 #403631 by lobstermobster
81 kz650 carb problems, i think... was created by lobstermobster
Soooo about a year ago I took my bike apart...nothing internal just making it look more my style. With that I did take off the air box and currently rocking those generic pod filters. So it took me forever to get my bike back together and now that the frame and electrical are all good to go, the bike doesnt run now :(

the ONLY thing changed that would affect the way it runs is the pod filters. I do not know carbs at all so my pops is helping me since hes been riding since he was younger than i am. He said he adjusted the fuel mixture and what not and checked the jets. and i do not know the specific settings but he stated that at best, he could get the motor idling good and sounding strong (before it would putter and make a gargling sound) but with those settings it just had no power at all. He said the stock jets on there are really small, and his best guess is that the engine is not getting enough fuel since the pods have almost no air restriction.

Only solution we know is to get the stage 3 dyno jet kit, which is the only one available i believe.I do not have aftermarket exhaust but was going to make my own.

if any of you have some expert advice on whether that is the way to go or not please chime in. im still new to bikes and have no clue. thanks

1981 kz650 w/ flux capacitor

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03 Oct 2010 08:00 - 22 Jan 2013 01:41 #403706 by H1Vindicator
Replied by H1Vindicator on topic 81 kz650 carb problems, i think...

Last edit: 22 Jan 2013 01:41 by H1Vindicator.

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03 Oct 2010 11:47 #403784 by lobstermobster
Replied by lobstermobster on topic 81 kz650 carb problems, i think...
I do not have the airbox anymore. and if i did there is not room for it anymore.

1981 kz650 w/ flux capacitor

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03 Oct 2010 14:06 - 22 Jan 2013 01:41 #403820 by H1Vindicator
Replied by H1Vindicator on topic 81 kz650 carb problems, i think...

Last edit: 22 Jan 2013 01:41 by H1Vindicator.

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03 Oct 2010 17:03 #403859 by lobstermobster
Replied by lobstermobster on topic 81 kz650 carb problems, i think...
cool. i guess that stage 3 kit is the way to go, but i noticed it doesn't come with pilot jets. just two sets of main jets. I looked through all the pilot jets that came up when searching under my bike model and year but all that came up never said anything about fitting the 650 models only the bigger bikes. maybe I'm missing something.
if anyone has links to or can tell me what size pilots to get if i need to get them separately that would be cool

1981 kz650 w/ flux capacitor

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03 Oct 2010 18:32 #403875 by 650ed
Replied by 650ed on topic 81 kz650 carb problems, i think...
Pods :laugh:

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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03 Oct 2010 18:56 #403884 by lobstermobster
Replied by lobstermobster on topic 81 kz650 carb problems, i think...
I'm sure writing something useful would have taken less energy than you trying to figure out how to attach a smiley face old man.

1981 kz650 w/ flux capacitor

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03 Oct 2010 18:57 #403885 by 650ed
Replied by 650ed on topic 81 kz650 carb problems, i think...
Pods :laugh: :laugh:

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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03 Oct 2010 19:00 #403889 by lobstermobster
Replied by lobstermobster on topic 81 kz650 carb problems, i think...
No worries though. Must not have much useful information anyway since you've only had to change the oil on your stock bike for 33 years

1981 kz650 w/ flux capacitor

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04 Oct 2010 04:28 - 04 Oct 2010 04:32 #403949 by JMKZHI
Replied by JMKZHI on topic 81 kz650 carb problems, i think...
It might be cheaper to just buy the jets. The stock jet needles don't have any grooves for adding clips, but I believe you can use shims of some sort (small washers?). From what others have reported the jet needles in some kits have the wrong taper. However, I don't know much about this kind of stuff, so do whatever seems appropriate.

Edit - PS: the pods will probably be less problematic than on some other bikes since you don't have CV carbs (assuming the carburetors are stock). I think pods work better w mechanical slide carbs... pretty sure anyway.
Last edit: 04 Oct 2010 04:32 by JMKZHI.

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