is earshave required when emissions are removed - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 10-27-2013, 07:40 PM Thread Starter
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is earshave required when emissions are removed

removing the emissions do i have to do earshave and rejet?
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post #2 of 11 (permalink) Old 10-27-2013, 07:45 PM
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I didn't re-jet using Uni PK-92 pod filters. But no, you don't have to shave to do the coasters. It's just easier to do all at once.

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post #3 of 11 (permalink) Old 10-27-2013, 07:52 PM Thread Starter
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i think i meant when doing the coaster procedure and removing the hoses. would i be able to keep everything else stock such as the stock filters with the ears.

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tp stator
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coil relay mod
other stuff not listed
mustang seat
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post #4 of 11 (permalink) Old 10-27-2013, 07:55 PM
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Yes. (my first post is edited)

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post #5 of 11 (permalink) Old 10-27-2013, 08:07 PM Thread Starter
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cool thanks i may go ahead since my motor is pulled for the stator

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tp stator
dampers
coil relay mod
other stuff not listed
mustang seat
motorcycle repair at a stealership 1 million bucks, repairs with the help of the Vulcan750 forum priceless.
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post #6 of 11 (permalink) Old 10-27-2013, 08:23 PM
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What are you defining as "emissions"?? Only California had emissions crap on the bike. Most states out here don't even require emission testing on motorcycles.

If you consider the reed valve system on the bike an emissions system, then NO, marbling or coastering does not require rejetting.

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post #7 of 11 (permalink) Old 10-27-2013, 08:30 PM Thread Starter
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yeah that's what i meant, sorry about that lol.

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post #8 of 11 (permalink) Old 10-27-2013, 08:52 PM
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What's the purpose of the reed valve setup if not for emissions?

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
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post #9 of 11 (permalink) Old 10-28-2013, 02:34 AM
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The reed valve setup IS an emissions device. It is designed to inject air into the exhaust, to assist in burning the unburned gas that comes out of the combustion chamber. And it does do that. But doing that is not a good idea. It causes the exhaust to run hot, and also causes backfiring. I got rid of mine back when my bike was almost new. I never did get "coasters", I just used black rubber caps made to block off heater hose connections on cars. They were a perfect fit. After you have removed the 3 way valve and all the hoses, there will be a hole in the airbox that will need to be plugged.

In addition to that, I had a CA model, with an evap system, and also removed all of that. By the time I was done, I had a 5 gallon bucket full of junk.

I recommend keeping the "ears" if you want the best filters. If you decide to do the "earshave", the Uni filters should be a lot better than the K&Ns. My opinion of K&N filters is so bad I'm not even going to post it on here. I'll get yelled at for using profanity.

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post #10 of 11 (permalink) Old 10-28-2013, 07:06 AM
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Quote:
The reed valve setup IS an emissions device. It is designed to inject air into the exhaust, to assist in burning the unburned gas that comes out of the combustion chamber. And it does do that. ... It causes the exhaust to run hot, and also causes backfiring.
That's what I thought. If you ever have to remove the carbs, having all that plumbing gone saves you a lot of headaches. You can turn the ears into tool boxes if you want to keep them.

You can catch deals on Uni or K&N at Ebay.

I made my coasters for the price of two stainless bolts, M6x16x1.0.
Making Coasters
https://www.vn750.com/forum/showthread.php?t=32273

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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