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aux fuel tank

7927 Views 26 Replies 14 Participants Last post by  BudgetBiker
Has anyone fit an auxiliary fuel tank/cell to the Valkyrie? I know many sport touring people do it for their rides, but have not seen any done for the Valk.
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this is not answer to your question, but why? 6 gallons seems plenty huge miles (300) and why exposed carry potential dangerous flammable self incinery fluid ? crikey! you'd think you was crossing the outback!
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Poncho, you're
saying your bike gets 50mpg? Mine is more like 30.
Poncho, you're saying your bike gets 50mpg? Mine is more like 30.

FF, yeppers. I picked it up april 19 and rode to Indy anna. I-70 70mph some small variations. first tank 250 miles 5 gal. I rode to Nashville 250 miles, 5 gal. I rode to Tupelo Ms. 250 miles, 5gal. I rode to Natchez Ms. 250 miles, 5 gal. I rode to Jasper, Tx. 250 miles, 5 gal. I rode to Bryan Tx. 250 miles, 5 gal. I rode to Austin, Tx. 250 miles, 5 gal. I did some riding around here 250 miles, 5 gal. seems pretty consistent to me. 50mpg. The bike is new nakid and most of my riding is 50-70mph. I ride easy steady and am not a hot dog just because I have all this power on tap.


I do have, had had many bikes. I find its my riding style that gets the most out of my machines and loooooong tire life. Others write they go thru fuel and tires at a fast clip. I suspect that is how they ride their bikes. not me.


Perhaps when this new batwing is installed next week it might inflict more drag and require more hp/fuel to push it. At speeds maybe. at 50mph I doubt it. My big Chief gets 50mpg. it has all the dash computer Avg and Instantaneous... plus I always top off my tanks exactly the same and calc the pump numbers against mileage.. all I can say is I get good service on my machines. Maintenance, Care and no abuse. poncho
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Yea. I get about 38 to 40 mpg, no matter how I ride. I have a windshield and hard bags but that can't be that much of a difference for mileage.
Poncho I think you have a rare duck. Keep it that way for sure.
Poncho I think you have a rare duck. Keep it that way for sure.
I have been called many things. never a rare duck b4. is that like when its not cooked well?


I am not sure that 50mpg needs be the exception. I did read elsewhere another rider was getting same/similar mileage. But I do believe that my riding style has a LOT to do with it. IF I ride any motor bike hard and/or in bad weather aka wind, mileage will suffer. my chieftain only got 33mpg going north 2 weeks ago into that big artic wind blowing out of Canukistan.


the chief has a power windshield, when down it is slippery'er. Up it is a sail. Bags for all their curvy shape still resembles the back of a semi truck and is a huge DRAG. it takes hp/fuel to PULL all that dead air behind you. if you are going fast.. er. poncho
Poncho. I didnt call you a rare duck. The bike is a rare duck, like a gem, something not ordinary.
Poncho. I didnt call you a rare duck. The bike is a rare duck, like a gem, something not ordinary.

often I use self deprecating humor to lighten a conversation.. ducks can be,, well ducky! if you have never seen this video, its one of my favorites "the Original Duckumentary".. everything you never wanted to know about ducks.. and more! poncho
FF, yeppers. I picked it up april 19 and rode to Indy anna. I-70 70mph some small variations. first tank 250 miles 5 gal. I rode to Nashville 250 miles, 5 gal. I rode to Tupelo Ms. 250 miles, 5gal. I rode to Natchez Ms. 250 miles, 5 gal. I rode to Jasper, Tx. 250 miles, 5 gal. I rode to Bryan Tx. 250 miles, 5 gal. I rode to Austin, Tx. 250 miles, 5 gal. I did some riding around here 250 miles, 5 gal. seems pretty consistent to me. 50mpg. The bike is new nakid and most of my riding is 50-70mph. I ride easy steady and am not a hot dog just because I have all this power on tap.


I do have, had had many bikes. I find its my riding style that gets the most out of my machines and loooooong tire life. Others write they go thru fuel and tires at a fast clip. I suspect that is how they ride their bikes. not me.


Perhaps when this new batwing is installed next week it might inflict more drag and require more hp/fuel to push it. At speeds maybe. at 50mph I doubt it. My big Chief gets 50mpg. it has all the dash computer Avg and Instantaneous... plus I always top off my tanks exactly the same and calc the pump numbers against mileage.. all I can say is I get good service on my machines. Maintenance, Care and no abuse. poncho

What's the octane you're using? If it's 86 it'll explain it. These bikes need at least 87. Sounds petty but kind of a deal. Mine with the oem tall windshield and pipes is around 190miles till the light pops on. I think it's like 40mpg.. 87 octaine. With that 86 stuff? 36mpg.
What's the octane you're using? If it's 86 it'll explain it. These bikes need at least 87. Sounds petty but kind of a deal. Mine with the oem tall windshield and pipes is around 190miles till the light pops on. I think it's like 40mpg.. 87 octaine. With that 86 stuff? 36mpg.
RW, not knowing any better and not having had read the manual yet, this was my ride home ~7days 2k smiles. I topped off with 91-93 octane premium. I know its really not premium but retarded fuel, but some machines, air cooled Vtwins seem to need it.? so, it is what it is. This past week I topped off with standard 80something, 81, 83? I didn't really pay attention. the manual said to use regular, so I did. At present I have 197 miles and it was 3 bars showing when I pulled in yesterday. 2 are showing now, unstarted. I suspect it will go another 25-50 miles till just 1 bar. and I only saw it flicker one time, that was after I got back home. I have never seen any fuel lite come on. Is there a low fuel light? poncho
My final bar started flashing over the weekend around 170 miles; I think it's all about how you ride. I spent most of my time at 85mph+. 180 is the farthest I've gone before the bar started flashing. Those RPMs get high pretty quick.
I purchased my '14 brand new last July & have just over 1000 miles on it, have the little honda batwing windshield and honda leg wind deflectors and mostly ride between 57-64mph (whether the speed limit is 50 or 55) I seem t get between 35-38 mpg so far, fyi I don't ride like a Sally lol I'm 5'10" 210lbs
Its not how fast do you go, as long as you still get there. It is the journey and not just the destination. I use to ride fast and tear it up. Now, more so, I prefer to mozey along and enjoy the scenery and sites and the scents of middle America where the real people live. the last 20 years and 20 bikes have racked up over 300k smiles..
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this is not answer to your question, but why? 6 gallons seems plenty huge miles (300) and why exposed carry potential dangerous flammable self incinery fluid ? crikey! you'd think you was crossing the outback!
300 miles? Are you pushing your bike? I get 190.
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300 miles? Are you pushing your bike? I get 190.

No. not yet. I just picked it up and rode it home. the long way. 2k smiles ~7 day including 3 day w/family. I didn't know better or different, so I top off with 93 octane. Since I am on the long road traveling, I fill up to the top consistently the same. burp it, fill, burp, fill. I ride smooth and steady 50 on the backroads, 70-75 on interstates. The fuel indicator finally shows 1 bar at 250 miles. that is when I stop and refuel. It will never take more than 5gal. and it does it consistently. 50mpg.
Picked up bike in St. Charles, Mo. started with a full tank from the dealer. First leg I70 to Indy anna 250 miles, she drank 5 gal. visited my bro and nephews families and then rode I65 to Nashville, Tn. 250 miles, 5 gal. 50 mpg. Jumped on the Natchez Trace parkway 45mph to north of Tupelo. 250 miles, 5gal. Next day rode the Trace to Natchez Ms. 250 miles, 5gal. Next day rode west thru La to Tx border, 250 miles, 5gal. the weather had been favorable so I pressed on to Bryan Tx is where I met the rain. 250 mile another 5 gal. With only a 150 miles to go and still mid afternoon, I rode thru lite rain. Until I didn't. the rain came down in buckets. literal buckets were bouncing off the hiway, I might as well have been dodging buckets because I could not see diddly squat. but out in farm land with nowhere to stop and get cover, I kept riding. Until the wind gust went crazy. I came to a small town and pull into a station and sat until it let up. But this whole story is post Uno. So eventually I got to my shop and sighed a big relief. then the sun came out and dried up all the rain. a few days later I finished that tank of gas at 250 miles and again it will only take 5 gallons all the way to the top, including burping, filling, burping, filling. I rode that tank out and filled it with 5 gal of 83 octane. Its back to raining this week but have 197 miles and the indicator just switched from 3 bars to 2 bars. I have another 50 mile before it needs topping off. Only 1 time did I ever see one bar blinking and that was here home after finishing that last travel tankful. 1 bar started flashing on my way to the gas station.


So all I can say is my rubber duck bike is getting 50 mpg pretty dang consistently. I have a batwing fairing due here tomorrow. I might get it installed this weekend. day runs to the lake thru the canyons, the fairing wont affect mileage. A week long cross country run that might involve some highway miles at speed, I would expect some drop off.. we will see. poncho
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Has anyone fit an auxiliary fuel tank/cell to the Valkyrie? I know many sport touring people do it for their rides, but have not seen any done for the Valk.





I never got around to fitting an aux to my Valkyrie. I did a couple of Iron Butt rides on it including a 50CC and rode through the outback with a 20L jerry can on the back.



I had it mounted on a rigid alloy plate that was in turn mounted to the rear subframe bolts where the pillion grab handles are bolted.



That was how I would have mounted a JAZ 19L drag tank like the one seen here on a few other bikes I've owned:





















All were gravity fed.



Accessing the Valkyrie main tank can be via drilling a hole into the tank itself or drilling through the fuel pump plate. ALternatively if you mount the auxiliary cell high enough then you can use the main tank's vent like (like the TMax scooter and the white BMW F800GT above).


this is not answer to your question, but why? 6 gallons seems plenty huge miles (300) and why exposed carry potential dangerous flammable self incinery fluid ? crikey! you'd think you was crossing the outback!
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I prefer your original solution of just carrying a spare fuel tank on the back and then stopping and refilling by hand when / if necessary. This is a sometimes solution for a sometimes problem. Taking the gas can off the bike when you get back to civilization.


3 years ago, I carried a 1 gallon can in a saddle bag on my Scout when touring Idaho and Montana. We were scheduled to ride to Banff, Lake Louise and Jasper, but rain kept us in the states. the Scout has a 3.5 gal tank. Only 1 week old, I didn't know how far it would go. Turns out that in the mountains Premium gas has NO ethanol (10% corn oil) and that 1000cc motor got 65mpg. I could ride 200 miles b4 the low fuel lite came on. I never had to use my spare tank the whole trip. poncho


btw, I really like your gun cases on the side of your f6c. those hard plastic cases are water tite and lockable. you can put a lot of contraban in them.
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I ride long distances regularly and the convenience of reaching back to flip the tap is gold, especially on 1200+ mile days. I've had 2 Teneres and maybe a total of 1 month without an aux bolted where the back seat should be. The set-up with the alloy flatbed tank is very convenient. My current FJR has a custom cell that is quick easy to remove and I use the JAZ tank mounted to a Givi rack when I'm doing a long ride with a pillion.


I love those hard plastic bags. On the Valkyrie coast to coast ride I removed the Honda leather-like bags and installed the pelican style ones for a bit more carrying capacity, plus the absolute waterproof feature.


I've used them on heaps of other bikes:














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My cut off is @ 180. I’ve never had a tank this size and I’m still giddy about it. There is NO light!

You get a flashing bar and then gas up.
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