Auxiliary Fuel Tank


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silverbullett
Posts: 9
Joined: Wed Jun 01, 2011 7:23 am
Location: Teague,Texas
Motorcycle: 2008 GL1800Abs/Navi

Auxiliary Fuel Tank

Postby silverbullett » Sat Jul 02, 2011 8:33 am



4.6 gallons, will fit 1800 or 1500, sits on pillion, gravity feed, all necessary hardware and fittings, complete.$650 shipped in CONUS. Contact silverbullett130@yahoo.com



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ramdam1
Posts: 92
Joined: Wed Oct 14, 2009 12:12 pm
Location: Bethpage, NY
Motorcycle: 1981 GL 1100 Interstate
2011 Kawasaki Nomad

Re: Auxiliary Fuel Tank

Postby ramdam1 » Sat Jul 02, 2011 8:25 pm

Wow an additional 4 gallons. At 5.3 gallons and 46 mpg that is enough with out getting off for 5 minutes for fuel and bathroom.

silverbullett
Posts: 9
Joined: Wed Jun 01, 2011 7:23 am
Location: Teague,Texas
Motorcycle: 2008 GL1800Abs/Navi

Re: Auxiliary Fuel Tank

Postby silverbullett » Sat Jul 02, 2011 8:41 pm

You know what they say......If you can't run with the big dogs, don't get off the porch !! Also have a catheter available as an option!!!

silverbullett
Posts: 9
Joined: Wed Jun 01, 2011 7:23 am
Location: Teague,Texas
Motorcycle: 2008 GL1800Abs/Navi

Re: Auxiliary Fuel Tank

Postby silverbullett » Fri Feb 01, 2013 7:28 am

Still have 2 left. Will lower price to $625 to move

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sparrowhawwk
Posts: 79
Joined: Mon Nov 02, 2009 10:09 am
Location: Enumclaw WA
Motorcycle: 78 GL
83 Int
76 Moto Guzzi Convert
73 Moto Guzzi Eldorado
76 Convert #2
83 Goldwing #2

Re: Auxiliary Fuel Tank

Postby sparrowhawwk » Sun Feb 03, 2013 1:15 pm

Have you actually hooked one up to an 1800? Because the 1800 is fuel injected and the fuel system is pressurized I'm wondering how you connect a gravity fed tank into the system?

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themainviking
Posts: 2575
Joined: Wed Sep 29, 2010 6:59 pm
Location: North Bay, Ontario, Canada
Motorcycle: 2009 GL1800 AD

Re: Auxiliary Fuel Tank

Postby themainviking » Sun Feb 03, 2013 2:46 pm

sparrowhawwk wrote:Have you actually hooked one up to an 1800? Because the 1800 is fuel injected and the fuel system is pressurized I'm wondering how you connect a gravity fed tank into the system?


Actually, the GL1800 fuel system runs at vacuum, therefore, it would suck the fuel out of the auxilary tank. However, it would eliminate the vacuum while doing so, so you would be correct in assuming that the bike would not run well. It would probably lower the fuel economy from 46MPG to about 30MPG. (I have never gotten 46MPG out of my GL1800 ever, anyway. The best I have ever gotten might be 42MPG on our bigger Canadian gallon)

Now, Silverbullet, can you redesign this tank to fit inside the trunk? It is too ungodly awful looking to install as is. Maybe if it were chromed, or at least color matched to my bike.
It ain't about the destination - it's all about the journey

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User avatar
sparrowhawwk
Posts: 79
Joined: Mon Nov 02, 2009 10:09 am
Location: Enumclaw WA
Motorcycle: 78 GL
83 Int
76 Moto Guzzi Convert
73 Moto Guzzi Eldorado
76 Convert #2
83 Goldwing #2

Re: Auxiliary Fuel Tank

Postby sparrowhawwk » Sun Feb 03, 2013 8:57 pm

themainviking wrote:
sparrowhawwk wrote:Have you actually hooked one up to an 1800? Because the 1800 is fuel injected and the fuel system is pressurized I'm wondering how you connect a gravity fed tank into the system?


Actually, the GL1800 fuel system runs at vacuum, therefore, it would suck the fuel out of the auxilary tank. However, it would eliminate the vacuum while doing so, so you would be correct in assuming that the bike would not run well. It would probably lower the fuel economy from 46MPG to about 30MPG. (I have never gotten 46MPG out of my GL1800 ever, anyway. The best I have ever gotten might be 42MPG on our bigger Canadian gallon)

Now, Silverbullet, can you redesign this tank to fit inside the trunk? It is too ungodly awful looking to install as is. Maybe if it were chromed, or at least color matched to my bike.


Not sure I agree with that as with fuel injection a higher pressure fuel pump continually circulates the fuel through the system and the excess back to the tank. Either way it is a closed loop with the tank included. I have put auxiliary tanks in sidecars with two lines running to the bike. It's been a while so I'll have to look up what I did at the time and get back to you. It's an old timers thing. :D




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