Gas Tank Mod to Increase Capacity? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 26 (permalink) Old 06-30-2010, 11:43 AM Thread Starter
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Gas Tank Mod to Increase Capacity?

I've done the ear shave and have a spare tank lying about.

I was thinking of using a wooden broom handle and a rubber mallet to "dent" the bottom of the tank in an attempt to give me a little more space.

Any thoughts on banging "out" the bottom of the tank to increase the overall volume the tank can hold?

Did someone once post they had accidentally put a dent in the bottom of the tank when cleaning it with a pressure hose?

Scheherazade
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post #2 of 26 (permalink) Old 06-30-2010, 12:59 PM
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Why not something like this?

FUEL

FUEL II

FUEL III

I'm sure you can get them cheaper or on sale locally.

DT

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post #3 of 26 (permalink) Old 06-30-2010, 01:39 PM
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Adding to this, I have a question... Would it be possible to take a stock tank from our VNs, cut it in half and make it larger welding in more medal? More or less just completely customizing the tank to be larger? Obviously handlebar clearance would be a concern... But, I was just thinking if I were to get a spare tank and have this done then it should, in theory, mount easily to the bike since all I'd be doing is expanding the size of the tank but leaving the mounts the exact same.

1990 VN750
Got it on 9/10/09
7683 original miles when I got it
7870 current (constantly adding more)
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post #4 of 26 (permalink) Old 06-30-2010, 03:53 PM
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Someone on here took a 1500 tank and made it fit. Gained about a gallon I think. My 1500 only holds 4.2 gallons I think. I wish it was bigger too. Although, if I'm on a longer ride, I've gotten around 42mpg out of it, which isn't bad considering I only averaged 45 on the 750. The in town riding kicks me down into the mid 30's on the bigger bike. But do some checking on the 1500 tank on the 750. Maybe it is an option.

Fergy
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post #5 of 26 (permalink) Old 06-30-2010, 05:38 PM
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I am in the process of modding up a "Fat Bob" tank onto the VN... its a pita...9mainly due to the fact the doner tanks are in poor condition.
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post #6 of 26 (permalink) Old 07-01-2010, 07:09 AM
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Quote:
Originally Posted by skalding View Post
I've done the ear shave and have a spare tank lying about.

I was thinking of using a wooden broom handle and a rubber mallet to "dent" the bottom of the tank in an attempt to give me a little more space.

Any thoughts on banging "out" the bottom of the tank to increase the overall volume the tank can hold?

Did someone once post they had accidentally put a dent in the bottom of the tank when cleaning it with a pressure hose?
Denting the bottom would not increase the internal volume of the tank unless the metal was thinned and stretched. It seems likely that doing so would damage the welds. Do an online search for auxillary tanks.
The larger tanks from the 1500 and 1800 don't look right, to my eye. Cutting and enlarging sounds like an incredibly big deal for a marginal benefit.
The previous suggestion of carrying the little fuel bottles does not seem such a bad idea. You would have to make a stop, but it would be good in areas where fuel stations are few and far between.


Jim
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post #7 of 26 (permalink) Old 07-01-2010, 08:30 AM
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The vulcan 500 tank will fit (with a few mods) and give you about half a gallon more but with 45 to 53 mpg I find it hard to believe that you won't be able to find a gas station to get fuel. I can get about 35 miles after going to reserve and if you don't come across a gas station in that range you must be very lonely out in the desert. lol

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post #8 of 26 (permalink) Old 07-01-2010, 09:08 AM
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I would agree that carrying fuel in some kind of fuel bottle would be the best. Anytime you make mods like has been discussed here you generally have other issues to overcome as a package deal. If I were going on a trip that was through an area that fuel was in question, I'd vote for carrying some kind of can or bottle that could be used if I had to.

Fergy
Kyle, TX VN750.com member #707 VROC#19556
2002 VN1500 Classic
Spline Lube Procedure, with photos, R/R Relocation and Coil Mod
Rusty Tank Cleaning!
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post #9 of 26 (permalink) Old 07-01-2010, 10:08 AM
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Here's another idea: How about adding something like this to the back of the bike. If you have the sissy bar mod, you could mount this to the sissy bar just above the tail light and run a fuel line to a T and add capacity.


I came from this SITE

DT

95 VN750 (eBay)31k+
GL1100 front fender
OEM engine guard
OEM high back rest
'V-Twin' HWY pegs
Black 750 Spectre handlebars
SunPro Volt Meter (Amazon)
Maier bug shield (JCW)
Bar Ends anti-vibe (JCW)
Emgo air filters
Tank bag-Eclipse
Tail bag-FroZone Cooler
Back Rest-Igloo 6 pak cooler
WalMart Saddle Bags
R/R Relocate
Dry Splines Lubed
AGM DieHard-Sears
Gutted Goat
Sporster XL Mufflers
LED's-stop,tail,turn,marker
Pickup coil mod to .45mm
Silverstar headlight
Rotella T6
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post #10 of 26 (permalink) Old 07-01-2010, 10:49 AM
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Hey Skalding, There are a few good posts on this forum about larger fuel tanks and auxiliary tanks.

https://www.vn750.com/forum/showthread.php?t=12869

https://www.vn750.com/forum/showthread.php?t=5543

If I were to add an extra tank I'd go with one of these on the luggage rack.
http://www.tourtank.com/gfx/tourtank...customers.html

Let us know if you attempt this mod. -Sloppy

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