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Denver jetting help

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Old 12-22-2009 | 09:34 AM
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Denver jetting help

Anyone with an 02ish with devil high mounts?

What main(front/rear) / pilots and needle clip position.

Thanks for any advice
Old 12-22-2009 | 12:00 PM
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Do you have a Factory Pro or a Dynojet jet kit?
Old 12-22-2009 | 12:13 PM
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no need for a kit... just want to know what mains pilots clip position people have come up with
Old 12-22-2009 | 12:20 PM
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Stock needles have no clip positions.. The only way to adjust the stock needles is to shim with washers.
Old 12-22-2009 | 02:22 PM
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+1
Lots of info on shimming. Search on shimming and needles. You'll see a variety of preferences from .020 to .060
Old 12-22-2009 | 03:42 PM
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Originally Posted by coba
no need for a kit... just want to know what mains pilots clip position people have come up with
There is no such thing as "needle position" on the OEM carb set up.

Unless you tell us how your carbs are set up now and what air filter you're using, there's no intelligent/informed way to answer your question.
Old 12-22-2009 | 05:53 PM
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Stock

My bad... didn't know that about these carbs ie needles... just assumed and we all know what that means Its a bone stock 02, i will be putting on high mount devils and a stock or BMC filter. I have not torn down the carbs yet to see what mains and pilots are in there now.
Old 12-22-2009 | 06:00 PM
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Stick with the stock filter, not even Moriwaki was able to get more power with different filters, so the only reason to go to a different one is to not have to replace it, and replacing it requires more drastic jetting changes.

So with a stock bike and devil exhaust in Denver you probably don't need to do much if anything to the jetting at all. A small shim at the most since higher altitude wants leaner jetting..

edit: You may want to disable the PAIR system though with that exhaust to not get too much backfiring.
Old 12-23-2009 | 06:02 AM
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JEt kit

Looks like a jet kit will include needles that have clip positions, way easier then shimming... so this may be the way to go.

Never had a bike that didn't run better at these altitudes (6000 denver to 12000 up over passes) without doing mains pilots etc vs needle and fuel screw only adjustments, but maybe this bike is different.

I see factory jet kit is more popular... any sources to buy one, the dyno kit is easier to find and if anyone put one of these kits in colorado if they know where they ended up main pilot clip wise it would be appreciated.
Old 12-23-2009 | 09:14 AM
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Originally Posted by coba
Looks like a jet kit will include needles that have clip positions, way easier then shimming... so this may be the way to go.

Never had a bike that didn't run better at these altitudes (6000 denver to 12000 up over passes) without doing mains pilots etc vs needle and fuel screw only adjustments, but maybe this bike is different.

I see factory jet kit is more popular... any sources to buy one, the dyno kit is easier to find and if anyone put one of these kits in colorado if they know where they ended up main pilot clip wise it would be appreciated.
Well adding your exhaust will lean the bike out some, so while it probably would improve with a jet kit, you are already heading that way..

My bike with stock jetting and MIG exhausts is a little lean for Phoenix (where I live) but just perfect in Prescott 5400ft and the mountains around there where I ride the most.

I actually have a Factory kit I need to install some day, but I am not in a hurry.

Oh and you can buy the factory kit direct from them: http://www.factorypro.com/Prod_Pages/prodh77.html
Old 12-24-2009 | 11:32 AM
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jets

good information and thanks to everyone, thanks lazn
Old 12-24-2009 | 01:21 PM
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I'm basically at the same elevation as you, 5,368', running Yoshimura RS3 slip-on's, K&N filter, mild port & polish, Factory Pro +4° advancer and stock jetting with great results. The devils are much more open than the RS3's, so you will me a little leaner than me, but unless you plan on riding at lower elevations I would try running it before dropping the coin on a jet kit.
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