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What is this and should it be capped like the other side?

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Old Oct 8, 2010 | 11:54 AM
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What is this and should it be capped like the other side?

I have a cap on the front head but there is not one on the rear

Front:


Rear:



I was changing the spark plugs
Old Oct 8, 2010 | 12:03 PM
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Yes. I would not hurt to put a zip tie or a hose clamp on it also.
Old Oct 8, 2010 | 12:32 PM
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Wait, mine doesn't even have those! It just has flat pieces, bolted on with alans. And one of them is stripped. Is this the PAIR system I keep hearing about?
Old Oct 8, 2010 | 12:35 PM
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That is the PAIR breather tube in the first pictures. Obviously someone has removed the system however it might be good to go in the and verify that the reeds are flipped. I would certainly cover up the one that is not done. You can buy a nice set of cover plates from someone on here (name escapes me) for 15 dollars shipped.

7moore7, someone took the extra effort and capped off those vents for you.
Old Oct 8, 2010 | 01:41 PM
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Originally Posted by RWhisen
That is the PAIR breather tube in the first pictures. Obviously someone has removed the system however it might be good to go in the and verify that the reeds are flipped. I would certainly cover up the one that is not done. You can buy a nice set of cover plates from someone on here (name escapes me) for 15 dollars shipped.

7moore7, someone took the extra effort and capped off those vents for you.
So was there a tube or something or were they vented from factory. My rear head has been sucking in dirty air... ****.. Is there a write up on the pair system with pictures? I did my spark plugs and took a picture down sp hole and it looked like this

Does the piston look normal or to dirty for a bike with 16,000 miles.
Old Oct 8, 2010 | 03:53 PM
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Check the Knowlege Base articles, there is a good write up with pictures. That piston looks carboned up and I doubt it's running right.
Old Oct 8, 2010 | 04:08 PM
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Originally Posted by RWhisen
You can buy a nice set of cover plates from someone on here (name escapes me) for 15 dollars shipped.
.
superdutyd..... these are the cats meeeoowwwww!!!!!
Old Oct 8, 2010 | 04:20 PM
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Originally Posted by slapi01
superdutyd..... these are the cats meeeoowwwww!!!!!
I think I got mine off Jamie:

http://www.daughertymotorsports.com/index.html
Old Oct 8, 2010 | 06:45 PM
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Any air that would be sucked in there would just get blown out the exhaust.

superdutyd has PAIR block-off plates for $15/pair, and they're very good quality.
Old Oct 9, 2010 | 10:50 AM
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Ok so would the stock setup suck air in constantly? If I flip the reeds will it stop the airflow? I capped the rear pair valves, there was one on the front already and it seems to be running bad afterwords. The cap is deteriorated at #2 and should the #1 in the picture be capped? Is it leading to the carb if so is it the front one?

Old Oct 9, 2010 | 10:54 AM
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All holes should be capped at all points where PAIR is removed... You are asking these questions in two threads now... Go read both and then stick to one thread as you are making me confused...
Old Oct 9, 2010 | 05:45 PM
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Ok so I capped both pair valves. I didn't flip the reed but I don't know if the previous owner/owners did it. I am going to buy the block plates off of the one SH member for $15 once he PMs me. And I capped the hole that went to the air box but I cant seem to locate the small diameter hose that went to the carburetor for the PV. Also I cannot find a thread that had pictures of someone doing the removal. In it he had pictures but I dont know what the thread was called I searched everything.
Old Oct 9, 2010 | 06:09 PM
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If the system was removed by the previous owner he most likely replaced the short hose with a "T" joint in it that the hose connected to with a single piece of hose... That's a more elegant option than just plugging it...

The reed valves open one way only... If they are turned such a way that they open to let air in they aren't flipped around... When you get the plates, just check and put them the way that won't flow air...
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