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xs650 > > Motorcycle Systems > > Fuel > > Standard tank on a Special bike |
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Standard tank on a Special bike
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nj1639 Full Member


Joined: Aug 22, 2007 Posts: 839 Location: Switzerland County, Indiana
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Posted: June 5, 2009, 7:41 am Post subject: Standard tank on a Special bike |
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Anybody else running one?
I found that with the single petcock setup there's a good bit of fuel left in the right side of the tank when approaching empty.
I'm using an aftermarket dual output petcock from Old Bike Barn. Took the base off a stock vacuum petcock and put a simple lawn mower fuel shut off valve in one of the holes and J.B. welded it and the other hole. Then ran a fuel line to the unused input/output of the aftermarket petcock.
Reserve/reserve.
_________________ "Go ahead, turn the damn power and water off, I'm ready!
'83 xs650sk
www.650rider.com/index...pic&t=5392 |
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dpmphoto Full Member


Joined: Apr 18, 2007 Posts: 485 Location: syracuse NY
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Posted: June 13, 2009, 1:02 pm Post subject: Re: Standard tank on a Special bike |
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Yes I'm running one,no problem junked the carbs used older petcocks
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bbjsw10 Full Member


Joined: Jul 15, 2009 Posts: 64
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Posted: August 10, 2009, 9:26 pm Post subject: Re: Standard tank on a Special bike |
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Rather than starting a new post on this, does anyone have a picture of the 2 side by side. I was thinking of doing the swap as well, building a scrambler and more range would be nice.
I just wanna see a side by side for size comparison or if someone could measure theres for me, L x W x H?
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IAmGrowler Full Member


Joined: May 04, 2009 Posts: 97 Location: Seattle, WA
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Posted: August 10, 2009, 9:40 pm Post subject: Re: Standard tank on a Special bike |
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bbjsw10 wrote: |
Rather than starting a new post on this, does anyone have a picture of the 2 side by side. I was thinking of doing the swap as well, building a scrambler and more range would be nice.
I just wanna see a side by side for size comparison or if someone could measure theres for me, L x W x H? |
No photo, but I have a '79 Special with a '77 Standard tank with no issues whatsoever.
_________________ The Voices In My Head Tell Me Things -- Bad Things. |
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bluebikerblan Full Member


Joined: Apr 18, 2007 Posts: 336 Location: Brigham City, Utah
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Posted: August 10, 2009, 10:19 pm Post subject: Re: Standard tank on a Special bike |
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Ditto on using "Standard" model tanks on Specials. I've used several from 75,76 & 77 models on 78 & 79 Specials. Usually for reasons of extra capacity although I also prefer the standard tanks shape .
I also usually dump the vacuum valve part of the specials petcocks and convert them via the Wikipedia modification to manual operation with a shut-off while I'm at it. I've had too many problems depending on the aged vacuum valves to shut off fuel. As an aside, I always dump those
"roto-tiller" specials handlebars too. Best, Blue
ps.....here's the link to the 650wiki.org procedure for making the petcock
conversion from vacuum to manual. It'a a repeat......
650wiki.org/index.php/...Conversion
_________________ Biker Up & Buckle Down
Last edited by bluebikerblan on August 11, 2009, 10:10 am; edited 1 time in total |
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jayel 650Rider Supporter


Joined: Apr 16, 2006 Posts: 3417 Location: SE Iowa 1974 TX650A
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Posted: August 11, 2009, 9:43 am Post subject: Re: Standard tank on a Special bike |
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bbjsw10 wrote: |
Rather than starting a new post on this, does anyone have a picture of the 2 side by side. I was thinking of doing the swap as well, building a scrambler and more range would be nice.
I just wanna see a side by side for size comparison or if someone could measure theres for me, L x W x H? | Standard is 12" at the widest Special is 10 1/2" at the tail Standard is 7" Special is 6" no difference in height or lenght... Standard tank is 74 model 74-83 Special is 79 or later, will interchange no problem
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_________________ all it takes is time and money -- Where are we going and why are we in this hand basket? |
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yamaman Support Staff


Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: August 11, 2009, 10:17 am Post subject: Re: Standard tank on a Special bike |
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I like the cigarette lighter Jayel, where's the ash tray?
_________________ Its not enough to have an aim in life, you have to pull the trigger! |
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jayel 650Rider Supporter


Joined: Apr 16, 2006 Posts: 3417 Location: SE Iowa 1974 TX650A
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Posted: August 11, 2009, 12:58 pm Post subject: Re: Standard tank on a Special bike |
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from the looks of things the floor of the shed.....
_________________ all it takes is time and money -- Where are we going and why are we in this hand basket? |
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pumps 650Rider Supporter


Joined: May 29, 2007 Posts: 1993 Location: Kansas City, Missouri, U.S.A.- 1977 XS650 "D" Standard
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Posted: August 11, 2009, 2:38 pm Post subject: Re: Standard tank on a Special bike |
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An old retired firefighter friend of mine built a log splitter and put a lighter and a radio on it.
_________________ You don't HAVE to be crazy to run into burning buildings, but it HELPS!
On an XS you won't pass yourself on the road everyday. 
My Bikes |
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bbjsw10 Full Member


Joined: Jul 15, 2009 Posts: 64
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Posted: August 11, 2009, 5:49 pm Post subject: Re: Standard tank on a Special bike |
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Jayel, that is exactly what I wanted Thanks !! Great pic to compare them. I almost like the standard tank better, nice shape to it.
Now to see if I can find someone who would trade their standard tank for my special. Anyone?
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Imcgyver Full Member


Joined: Jun 25, 2008 Posts: 15
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Posted: December 20, 2009, 5:11 pm Post subject: Re: Standard tank on a Special bike |
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Hello I was wondering what the capacity difference was between the standard and the special tank?
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nj1639 Full Member


Joined: Aug 22, 2007 Posts: 839 Location: Switzerland County, Indiana
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Posted: December 20, 2009, 5:25 pm Post subject: Re: Standard tank on a Special bike |
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1 gallon more with the standard.
_________________ "Go ahead, turn the damn power and water off, I'm ready!
'83 xs650sk
www.650rider.com/index...pic&t=5392 |
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pamcopete 650Rider Supporter


Joined: Oct 10, 2008 Posts: 875 Location: South Carolina
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Posted: December 20, 2009, 5:25 pm Post subject: Re: Standard tank on a Special bike |
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Standard tank: 3.96 US Gal. Special tank: 3.04 or 2.9 US Gal.
_________________ Ride.Enjoy.Life is simple |
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royfisk Full Member


Joined: May 24, 2006 Posts: 1597 Location: winchester, new hampshire usa
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Posted: December 20, 2009, 8:23 pm Post subject: Re: Standard tank on a Special bike |
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My 75 b xsl bike in my gallery has a special tank. The 81 8 hour reserection has a standard tank on it. Dont like the single petcock tanks but they do interchange. I was told that the earley 70's pre 441 tanks will not interchange, can anyone verify that? Will a 73 tank fit a 75? Also will a 70 / 71 rear fender and brackets fit a 75?
_________________ build them , ride them, tear them down, rebuild them, ride them, etc. etc. etc.. They only get better and better |
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