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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #1  
Old 4th September 2006
coaltal coaltal is offline
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Default Need help with CV w/thuderslide installed

Hello all, I just got a CV carb off Ebay to replace the leaking Bendix that is on the 83 XLX I just got. The CV came with a thunderslide kit already installed. After reading all the post I think now I would have perfered it without the Thunderslide kit installed. My question is does anyone have any suggestion for Jetting on a CV/thunderslide on an Ironhead. From what I've read here so far 45slow and 175main tend to be the ideal start for jetting, but how much would a thunderslide kit throw that off. Oh, I also have new cycle shack pipes coming and am looking into a new air cleaner. Any thought are greatly appreciated.
Thanks
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  #2  
Old 4th September 2006
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chrishajer chrishajer is offline
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The addition of the Thunder Slide does not change the jetting requirements for your bike. Start with Jetting 101 by stevo, and tune by paying attention to the symptoms. 45/175 should be fine to get you running.

--Chris
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Old 4th September 2006
coaltal coaltal is offline
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Thanks again, you guys are a wealth of information. One more thing if anybody knows. Could I re-jet with the main with a stock Keihin main jet or does it have to be a Dynojet main jet. From what i understand this kit when installed comes with a Dynojet emulsion tube and main jet.
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Old 4th September 2006
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spatial.hd spatial.hd is offline
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I'm pretty sure your stock main won't fit in a Dynojet emulsion tube. Today I tried the other way around and found the Dynojet main jet to be too small in diameter for the stock emulsion tube.
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Old 4th September 2006
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You need the BJ style jets specific to the Thunderslide even. Regular Dynojet DJ jets won't fit. There are at least 3 different threads on jets that I know of for the CV:

stock
Dynojet - DJ style jets
Thunderslide - BJ style jets

I can't even guess what the thread pitches and diameters are, but they are all different and not interchangeable. You need Thunderslide jets.

--Chris
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  #6  
Old 4th September 2006
coaltal coaltal is offline
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Thanks again guys.
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