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Old 08-04-2008, 02:28 PM   #1
longwaytim OP
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extra fuel container travel safety..?

Hey all,

I have a 4 l , (1 1/4) gallon small plastic gas can that I bought to carry extra fuel in. How do these things travel on a motorcycle? I see it all the time but not sure if I tighten the lid tigh, or?? Just not sure how the vent so the fuel doesn't expand too much. Thanks,

longwaytim screwed with this post 08-04-2008 at 02:47 PM
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Old 08-04-2008, 04:32 PM   #2
vOOdsy
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Two thing i do (1) Do not overfill the container as it allows rooms for expansion and (2) Open the container at least once during the day to vent the container.
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Old 08-04-2008, 04:50 PM   #3
EduardoMas
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I leave an inch or so from the top and tighten the cap well. So far no problems in three seasons. My gas cans are 1.25 US Ga, straped to the Kytech rack on the XR650R. Many riders in my area do the same for rough trail riding.

Here is a question for Kolpin users:
Has anyone snapped, cracked or severely damaged the factory Kolpin mounting bracket? I am thinking about side mounting but fear the effects of lowsiding or droping the wrong way on a rock garden.
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Old 08-04-2008, 05:24 PM   #4
longwaytim OP
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That's pretty much what I thought but I wanted to check before I travelled with it.

Thanks all!
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Old 08-12-2008, 07:32 PM   #5
longwaytim OP
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Is it legal to carry extra fuel container?

One other question, my neighbor saw my fual can safely strapped to the back rack on my GSA & seemed to think it is illegal to carry fuel that way, is he right??
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Old 08-12-2008, 08:02 PM   #6
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Quote:
Originally Posted by Long Way
One other question, my neighbor saw my fual can safely strapped to the back rack on my GSA & seemed to think it is illegal to carry fuel that way, is he right??
It probably is illegal somewhere.
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Old 08-13-2008, 06:11 AM   #7
DriveShaft
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Quote:
Originally Posted by Long Way
Hey all,

I have a 4 l , (1 1/4) gallon small plastic gas can that I bought to carry extra fuel in. How do these things travel on a motorcycle? I see it all the time but not sure if I tighten the lid tigh, or?? Just not sure how the vent so the fuel doesn't expand too much. Thanks,
Venting cans is definitely not safe, and not legal. keep it sealed tight. That's what makes it a gas can, and not...just a can.
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Old 08-13-2008, 07:06 AM   #8
longwaytim OP
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has anyone ever heard of it being illegal to carry extra fuel? I thought as long as it is strapped down safely it's ok? Hell, it's designed to transport fuel... I'm taking it anyway but I'd like to know if it's leagal or not anyway.

Cheers!
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Old 08-13-2008, 07:35 AM   #9
BuellDualSport
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Depends

Each State has it own highway laws.

Go to your States's web site and do a search.

Good Luck
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Old 08-13-2008, 07:39 AM   #10
ruh roh
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i carried mine recently, and apparently change of altitude made it expand and loosened the top. It spilled in my bags. I put it in double zip-lock bags on the way home (1200 miles) and not a drop spilled.
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Old 08-13-2008, 07:56 AM   #11
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Quote:
Originally Posted by DriveShaft
Venting cans is definitely not safe, and not legal. keep it sealed tight. That's what makes it a gas can, and not...just a can.
uh, NOT venting a can is what can make a dangerous situation. By venting we're mearly saying loosen the cap, then retighten.
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Old 08-13-2008, 08:47 PM   #12
marchyman
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Quote:
Originally Posted by MrDude_1
uh, NOT venting a can is what can make a dangerous situation. By venting we're mearly saying loosen the cap, then retighten.
Dangerous? Exact gasoline vapor pressure varies according to formulation which varies from place to place and from season to season. Using EPA data, however, shows a typical rise of about 7 PSI as temperatures go from 40F to 100F. Somehow I don't see a 7 PSI rise as being all that dangerous in any DOT approved fuel container that is filled to the maximum allowed 90% of total volume.

// marc
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Old 08-13-2008, 09:11 PM   #13
mark1305
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marchyman is on target. You can vent a plastic gas container literally hundreds of times per day if you want - if its full of gas, after you vent it more gas will vaporize until the vapor at the top of the can reaches the vapor pressure of that particular blend of gas at that temperature and reaches equilibrium with the liquid portion. If you don't vent it, the container (if the typical poly plastic) will swell to a certain size at which point it contains the pressure at equilibrium between the liquid and vapor. When the temp drops, the container will shrink - sometimes to the point of partially collapsing the sides. You can let air in if you want, but the ultimate result will be an equilibrium between the vapor pressure of the gasoline, ambient atmoshperic pressure, and flexibilty of the container.

Stick with approved gasoline containers and stow them where spills won't get into your other stuff and you will be safe.
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Old 08-13-2008, 09:21 PM   #14
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Gracias.

Marchy and Mark,

Thank you for this. It is very helpful.

Now, does the fridge light really turn off when I shut the door?
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Old 08-14-2008, 01:08 AM   #15
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Only one way to find out

Great explanation Marc & Mark even a moron like me was able to make sense of it.
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