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post #1 of 5 (permalink) Old 04-08-2010, 10:56 AM Thread Starter
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new here - thinking about ear shave.

Hey!

A friend that also rides a vn recommended I check out this forum.

I'm interested in doing the ear shave on the air filters- does that always require re-jetting?


Nathan
99 Vulcan 750
(just sold 1978 honda cx500)
Atlanta, GA
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post #2 of 5 (permalink) Old 04-08-2010, 11:11 AM
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Welcome, you've come to the right place. Yes, removing the stock air filters and replacing with aftermarket usually requires either shimming, rejetting or both. If you tell lance328 (who's in Buford and a top VN7XX mechanic) what filter you are going with, he will probably be able to tell you what setup you need.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
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1989 VN750 acquired December, 2008, 6,711 miles
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post #3 of 5 (permalink) Old 04-08-2010, 01:34 PM
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I believe Lance and others even sell kits with everything you need to do this mod, including the filters and jets. Years ago, it was a very "experimental" mod, and people who did it were pretty much on their own, sometimes having to pull the carburetors and rejet several times before getting it right. Now enough people have done it, and everything has pretty much been figured out, so it's mostly just a bolt on mod. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
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post #4 of 5 (permalink) Old 04-08-2010, 01:58 PM
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Welcome to the Vulcan madness Nathan. I am not sure that doing JUST an ear shave requires re-jetting or shimming the carbs. If you also install aftermarket exhaust, then you have to, as the higher airflow will cause a lean fuel mixture. Check with lance328, he is a GA boy too, and one of our top goto guys here.

Gordon

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Purchased May 16, 2008
Approx.19,300km (12,000 miles)

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July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
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post #5 of 5 (permalink) Old 04-08-2010, 02:14 PM
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I left my intake system completely stock, but installed V&H pipes, and rejetted according to Lance's advice. It seems to be perfect, the plugs are just the right color after several hundred miles. I would think that installing individual filters would lean the mixture even more than installing aftermarket pipes, but that is just a guess, as I have had no experience with either, other than following someone else's jetting advice with the pipes. But I also live at 1200 feet. If you live at 10,000 feet, that will make a major difference. The stock filters, or actually the stock airboxes, are fairly restrictive, with that tiny little square hole in them. I did remove the square rubber grommets from the square holes. That didn't really make much of a difference in size, it just got rid of more unnecessary parts on a bike that IMO already has way to many parts. Jerry.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
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