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Aux. fuel tank

Joined Sep 2003
121 Posts | 1+
USA,Eugene, Oregon
I was wondering how practical the under the seat aux. fuel tank is and if it will fit on an 06. I am looking to increase fuel capacity but it seems even in this high tech age its impossible to get a hi capacity fuel tank for a berg. Seems ridiculous to me when you can easily find every known gadget for a stupid honda 50 but dont expect a large tank for a real bike. sorry for editorial. Any of you had experience with aux. tanks, I would appreciate your imput
 
I know of 1 person that has run one in an 04 650- less than impressed with amount of effort to fit it and the fill/empty scenario.

Today, in the mail I recieved my new 06 Force catalogue.
I can buy Husaberg jackets, leathers, backpacks, hats etc etc etc.
The one item I would purchase - a larger capacity fuel tank is conspicuous by its absence.

In fact I believe that Husaberg no longer offer the underseat tank ? or am I wrong on this ?.

There are probaly those who utilise them in a trail/recreational riding enviroment and are satisfied with them, but in a race enviroment where fuel use is an issue ie desert racing a larger main tank would be far more desirable.

Just my opinion. Counts for nothing. :)
 
i am not keen on the aux fuel tank and aware of the poor fuel range .
so i got a large backpack , then bought a 10 litre fuel container . i put 6 liters of fuel in the container and off i went , at 1st you notice the weight , but it gets lighter as you fill up the tank .

it is not the solution , its awkward and with the weight up so high it doesn't feel good . but when i go deep into the australian bush at least i know i am going to make it back .

if a long range tank was available i would get one .
 
I have 2 of the aux. tanks, used on my 00 501 and my 04 550. I trail ride in the California desert mostly, and have an honest 100 mile range with them.

No they are not for racing, if you have to refuel them during the race. You have to remove the seat and an additional fuel cap, takes too much time in a race.

I do like the fact the extra weight is further back on the bike, and very low down.

Joe
 
There is a option from Nomadtanks.com.au

they have several sizes that mount on the rear fender , it uses a t-fitting you can always plug and remove is you are not using.

it seems there are alot more berg's in Australia using this product.

Gee-Bee 8)
 
JoeUSA said:
I have 2 of the aux. tanks, used on my 00 501 and my 04 550. I trail ride in the California desert mostly, and have an honest 100 mile range with them.

No they are not for racing, if you have to refuel them during the race. You have to remove the seat and an additional fuel cap, takes too much time in a race.

I do like the fact the extra weight is further back on the bike, and very low down.

Joe

Joe,

I just ordered the aux. tank for my '03... I was planning on re-locating the rectifier and mounting it under the tank??? Is that what's common for those model years? If not where is another place to re-locate it?
 
I just installed one last week. There was a bit of shove 'n' pull involved with the tank fitting but it did work. I mounted the ignition module right above the battery, that worked out really well. I'll spend some time today photo documenting the installation. I think it's pretty clean. I rode about 400 miles in Mexico last weekend and I got 30+ miles on the extra tank and managed 90 miles between stops with about 3 or so liters of fuel left. Stay tuned for more info...

Bottom line, since there are no large tanks available and carrying fuel on your back sucks, this is the best game in town.
 
kzoo said:
JoeUSA said:
I have 2 of the aux. tanks, used on my 00 501 and my 04 550. I trail ride in the California desert mostly, and have an honest 100 mile range with them.

No they are not for racing, if you have to refuel them during the race. You have to remove the seat and an additional fuel cap, takes too much time in a race.

I do like the fact the extra weight is further back on the bike, and very low down.

Joe

Joe,

I just ordered the aux. tank for my '03... I was planning on re-locating the rectifier and mounting it under the tank??? Is that what's common for those model years? If not where is another place to re-locate it?

Kzoo,

On my 00, the rectifier/regulator is mounted on the side of the battery box, where it gets cooled by the passing air. It is also grounded to the Battery and the bike frame. I haven't seen an 03 in that detail, and the online 03 Owners Manual photos are very poor.

Installing the Aux. tank on the 00 did not require moving any of the 00 electrical system.

If the 03 rectifier/regulator is mounted like the 00. Why would you want to move it?

Installing the Aux. tank on 04 -06 models causes you to have to move the Ignition Module because it is on a bracket in the way of the Aux. tank on those year Bergs.

Regards,

Joe
 
JoeUSA said:
kzoo said:
JoeUSA said:
I have 2 of the aux. tanks, used on my 00 501 and my 04 550. I trail ride in the California desert mostly, and have an honest 100 mile range with them.

No they are not for racing, if you have to refuel them during the race. You have to remove the seat and an additional fuel cap, takes too much time in a race.

I do like the fact the extra weight is further back on the bike, and very low down.

Joe

Joe,

I just ordered the aux. tank for my '03... I was planning on re-locating the rectifier and mounting it under the tank??? Is that what's common for those model years? If not where is another place to re-locate it?

Kzoo,

On my 00, the rectifier/regulator is mounted on the side of the battery box, where it gets cooled by the passing air. It is also grounded to the Battery and the bike frame. I haven't seen an 03 in that detail, and the online 03 Owners Manual photos are very poor.

Installing the Aux. tank on the 00 did not require moving any of the 00 electrical system.

If the 03 rectifier/regulator is mounted like the 00. Why would you want to move it?

Installing the Aux. tank on 04 -06 models causes you to have to move the Ignition Module because it is on a bracket in the way of the Aux. tank on those year Bergs.

Regards,

Joe

On my '03 the rectifier is mouted on the mudguard behind the shock. It was like that when I bought it...

http://i6.photobucket.com/albums/y233/whyz/DSC01093.jpg
 
kzoo said:
JoeUSA said:
kzoo said:
JoeUSA said:
I have 2 of the aux. tanks, used on my 00 501 and my 04 550. I trail ride in the California desert mostly, and have an honest 100 mile range with them.

No they are not for racing, if you have to refuel them during the race. You have to remove the seat and an additional fuel cap, takes too much time in a race.

I do like the fact the extra weight is further back on the bike, and very low down.

Joe

Joe,

I just ordered the aux. tank for my '03... I was planning on re-locating the rectifier and mounting it under the tank??? Is that what's common for those model years? If not where is another place to re-locate it?

Kzoo,

On my 00, the rectifier/regulator is mounted on the side of the battery box, where it gets cooled by the passing air. It is also grounded to the Battery and the bike frame. I haven't seen an 03 in that detail, and the online 03 Owners Manual photos are very poor.

Installing the Aux. tank on the 00 did not require moving any of the 00 electrical system.

If the 03 rectifier/regulator is mounted like the 00. Why would you want to move it?

Installing the Aux. tank on 04 -06 models causes you to have to move the Ignition Module because it is on a bracket in the way of the Aux. tank on those year Bergs.

Regards,

Joe

On my '03 the rectifier is mounted on the mudguard behind the shock. It was like that when I bought it...

http://i6.photobucket.com/albums/y233/whyz/DSC01093.jpg

In that case, you can mount it anywhere you want, as long as its on plastic so it is not grounded to the bike frame.

You might wait until you have the Aux. tank installed, then you will know how much room you have. There is quit a lot of space available on top of the Aux. tank, under the seat, maybe you can put it there if you cut the top off of the vent valve they provide, or on the front side of the partial mud guard that comes with the tank.

Let me know how you make out!

Joe
 
Joe,

Thanks, I'll check out your gallery to see if I can get any ideas from your pictures... I was going to make an aluminum frame then bolt a piece of delron to it as an insulator and mount it above the battery????
 
kzoo said:
Joe,

Thanks, I'll check out your gallery to see if I can get any ideas from your pictures... I was going to make an aluminum frame then bolt a piece of delron to it as an insulator and mount it above the battery????

Sounds good to me, if you have the space and you are not compromising the ability to quickly get at the carb if you want to make some changes.

Joe
 
Joe,

You said to make sure that my rectifier is not grounded but you also said that your rectifier is mounted and grounded to the frame? Is there a difference between the '00 and '03?
 
kzoo said:
Joe,

You said to make sure that my rectifier is not grounded but you also said that your rectifier is mounted and grounded to the frame? Is there a difference between the '00 and '03?

I guess there isn't. I just pulled the parts manuals for 00 through 03 and found the following:

00 Rectifier/Regulator part # 180 123-01 (used since 1995)

01 & 02 Rectifier part # 180 172-01 Used in 01 & 02 only)
01 & 02 AC Regulator part # 180 019-01 (First used in 1989)

03 rectifier/Regulator part # 180 123-01 (Reintroduced for 2003)

The part numbers for the 00 and 03 Rectifier/Regulator are the same.

My 00 & 03 rectifier/regulator is a large aluminum heat sink that contains the circuitry. On the 00 it is bolted to the steel battery box with 2 bolts, one of which also terminates the ground lug from the battery. The battery box is bolted to the Husaberg frame in 3 places. One of my frequent maintenance items is to make sure all 5 of these bolts/nuts along with the 2 battery terminal connections are kept very tight.

The 00 & 03 rectifier is a true full wave 140 watt rectifier, where the other 01 and 02 are only 1/2 wave 70 watt, and are only used for charging the battery (E-start models). Lights on the 01 and 02 are run off of a AC regulator, using the other half of the alternator not being used for DC.

The 00 & 03 schematics are identical with respect to the rectifier and grounding of the DC circuitry.

The heat sink on my 00 rectifier is grounded to the frame of my bike so I guess you could ground yours too.

Regards,

Joe
 
JoeUSA,

I was hunting through the site and found this picture that you had posted of your rec/reg showing it bolted to the battery box.

http://www.husaberg.org/uploads/JoeUSA/Rectifier.jpg

I'm assuming that the left bolt it threaded into negative battery post? What is the right both attached to? Is it tacked to the battery box or something...

Also, was that a factory mount, or did you come up with that when you installed that tank?

Thanks in advance.
 
kzoo said:
JoeUSA,

I was hunting through the site and found this picture that you had posted of your rec/reg showing it bolted to the battery box.

http://www.husaberg.org/uploads/JoeUSA/Rectifier.jpg

I'm assuming that the left bolt it threaded into negative battery post? What is the right both attached to? Is it tacked to the battery box or something...

Also, was that a factory mount, or did you come up with that when you installed that tank?

Thanks in advance.

If you look real carefully at the left nut & bolt, you will see a cable lug under the nut that is on the cable comming from the battery negative pole. There is another nut under the cable, that actually secures the rectifier to the battery box

The right bolt is a carriage bolt mounted to a metal strap welded to the battery box.

This is exactly the way it came from the factory in 00.

Regards,

Joe
 
wooleyberger said:
I was wondering how practical the under the seat aux. fuel tank is and if it will fit on an 06. I am looking to increase fuel capacity but it seems even in this high tech age its impossible to get a hi capacity fuel tank for a berg. Seems ridiculous to me when you can easily find every known gadget for a stupid honda 50 but dont expect a large tank for a real bike. sorry for editorial. Any of you had experience with aux. tanks, I would appreciate your imput

Actually, the Aux tanks are still avail but just not shown in the parts catalog. According to two customer's of ours, they work great. Also, we have one coming soon, so check your local Husadealer.
Bike Barn MC, LLC
Medford OR, 97501
 
For my situation I like the idea of the nomad tanks that mount on rear fender. they can be removed for shorter rides, are easy to fill and the ignition stays at home. Anybody used one of these? which one is best for a berg?
 
I have personally adapted a rear fender tank from a pre 2000 to my 2004. That gives me 14l =200km enough. BIG advantage: better balance, better ergos than large front tank . Center of gravity better than rear fender tanks whixh are also available as "Boom Tanks" (I think from Australia. Tom Beckett sells them for UK and Euroland). I know a lot of people using these rear fender tanks on rallies, seem to work well.

TheEngineer
 

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