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Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

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  #11  
Old 14th July 2008
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OK guys. I ordered the EZ Just idle mixture screw from JCP and it came in Thursday, I installed it today. Then took it back out and put the original mixture screw back in. The original at least has to tension on it.

The EZJust was real loose at two turn out. I think I may know why. Because I read and followed advice on the this and other threads, I was very care to get all the parts out of the idle mixture screw hole. But all I got was the needle screw and the spring. No washer and no rubber o-ring. I am not sure if they were ever there, but the idle mixture screw doesn't seem to have as much turning resistance as it used to have. Maybe just my imagination. I have a reasonably clean garage floor and spent about 30 minutes on hands and knees looking for those parts with a flashlight. Looked around the bike and even used an inspection mirror to be sure they weren't stuck in the screw socket.

So here's my question. What are the implication of those missing parts? I would guess one would be less tension on the adjustment screw. Maybe some fuel leakage? I'm not sure so I naturally came to those who know more than me.

BTW..... I did back to Johns and order the replacement parts. Boy is he proud of them.

Oh and BTBTW (By The By The Way) the EZ Just needle looks different than the original. Not as tapered. How does that affect the bike?
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  #12  
Old 14th July 2008
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I found that just the o ring wanted to stay up there; the washer fell out with the spring. So maybe the washer came out and was lost, but the o ring was still in there? If that's the case, then I think the implication would be that the spring would chew up the o ring.
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  #13  
Old 14th July 2008
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Quote:
Originally Posted by Folkie View Post
I found that just the o ring wanted to stay up there; the washer fell out with the spring. So maybe the washer came out and was lost, but the o ring was still in there? If that's the case, then I think the implication would be that the spring would chew up the o ring.
I thought that too, but couldn't see it with a flashlight and an inspection mirror. I also used a toothpick to try to dislodge it if it were there and I just couldn't see it. Terrible what age does to us, and my eyes are 65 so I didn't want to just trust them. In any case, I believe it is not there now.

Thanks.
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  #14  
Old 18th December 2009
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Quote:
Originally Posted by tchuck View Post
I made my own.

This:



Plus this:



Equals this:



I bought some 3/16" brass tubing and a knurled nut from Ace hardware. If you accidently get solder in the threads, clean them up with a M6X.8 die.

Total parts cost; $1.98
EZ-just cost; $29.99
Savings; $28.01 = 7.39 gallons of gas = 370 miles of riding.
Very Nice Job!!! I'm withya, $29.99 for a screw????? It better have long blonde hair and big kazungas!!
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Old 9th January 2010
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both you guys did a great job with your inginuity and resourcefulness.
I think it is cool that you can make something to make having a Sportster better and to share it with us so we can enjoy it as much.
But I like the cost of tchucks much better. I might have to go and do this.
thanks guys. will try to figure out how to give rep. You both deserve it for sure.
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  #16  
Old 10th January 2011
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I noticed the adjustable mixture screws are on sale for $16.95 and free shipping this month (Jan 2011). Or $9.95 if you order them with a jet kit:

http://www.harley-performance.com/ez-just.html
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  #17  
Old 11th January 2011
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Have you tried the kit? I did try the EZ-just a couple of years ago. The bike ran but the EZ-just screw felt really loose. I decided not to trust it. I still have it though.

Has anyone here used or have experience with Dakota Kid modified CV carbs? http://www.dakotakidcarbs.com/index.html
They seem expensive (currently $325) to rework the Keihin CV but the few testimonials I read all sound great. I'd rather read about it here though.

Last edited by Gone; 11th January 2011 at 15:26..
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  #18  
Old 11th January 2011
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Quote:
Originally Posted by PilotCFI View Post
Have you tried the kit? I did try the EZ-just a couple of years ago. The bike ran but the EZ-just screw felt really loose. I decided not to trust it. I still have it though.
Why would it be loose, the needle part of it is exactly the same as the stock needle?

You didn't fit it without the spring, washer, and O ring, did you?
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Old 12th January 2011
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Quote:
Originally Posted by Folkie View Post
Why would it be loose, the needle part of it is exactly the same as the stock needle?

You didn't fit it without the spring, washer, and O ring, did you?
Actually I did use the spring, washer and O ring. The EZ-just became loose as I backed it out for proper idle mixture. I understand your point, but I saw what I saw.
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  #20  
Old 12th January 2011
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How many turns did you back it out when it became loose?
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