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General Category => General Discussion => Topic started by: yamanx on May 08, 2015, 03:06:46 PM

Title: 78 1000SP filter box questions
Post by: yamanx on May 08, 2015, 03:06:46 PM
Hello all, I have a 78 1000SP which has been handed down to me. I love the bike because no one else has them and always pulls attention. But I can't sit on it without making it my own. Because I have I have started to change things to my liking. Firstly I want to open the mid engine area up. Use K&N filters and breathers for the case vents but I can't find exactly what I need for the case vents. I have read several different things but figured I'd ask you all here and see what you though. Do I just need a breather filter or will they need check valves as well? I want a little as possible under the seat besides maybe the battery. Thanks for any input!
Title: Re: 78 1000SP filter box questions
Post by: Antietam Classic Cycle on May 08, 2015, 03:20:08 PM
Use this:

(http://www.mgcycle.com/images/atrex/14155700.jpg)
http://www.mgcycle.com/index.php?main_page=product_info&cPath=71&products_id=490 (http://www.mgcycle.com/index.php?main_page=product_info&cPath=71&products_id=490)

and remove the check valve inside the big breather tube on the engine. You'll need the short hoses that go between it and the engine:

(http://www.mgcycle.com/images/atrex/14157400.jpg)

(http://www.mgcycle.com/images/atrex/14157500.jpg) (5/16" 30R7 hose will work)

and the longer one that goes from the breather to the atmosphere/ground:

(http://www.mgcycle.com/images/atrex/95985136.jpg)
Title: Re: 78 1000SP filter box questions
Post by: HDGoose on May 08, 2015, 03:29:27 PM
Quote from: Antietam Classic Cycle on May 08, 2015, 03:20:08 PM
Use this:

(http://www.mgcycle.com/images/atrex/14155700.jpg)
http://www.mgcycle.com/index.php?main_page=product_info&cPath=71&products_id=490 (http://www.mgcycle.com/index.php?main_page=product_info&cPath=71&products_id=490)

and remove the check valve inside the big breather tube on the engine. You'll need the short hoses that go between it and the engine:

(http://www.mgcycle.com/images/atrex/14157400.jpg)

(http://www.mgcycle.com/images/atrex/14157500.jpg) (5/16" 30R7 hose will work)

and the longer one that goes from the breather to the atmosphere/ground:

(http://www.mgcycle.com/images/atrex/95985136.jpg)

That's what I used on my 1979 SP1000
Title: Re: 78 1000SP filter box questions
Post by: JoeW on May 08, 2015, 06:49:14 PM
Make sure you remove the check ball in the vent pipe.
Title: Re:
Post by: yamanx on May 08, 2015, 06:58:34 PM
That's good info! Thanks. Are there any routes without the box or is that a must?