fuel petcocks

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fuel petcocks

Postby dave M » Mon Apr 27, 2009 7:17 pm

Has anyone tried using two reserve fuel petcocks instead of one main and one reserve? It strikes me that with the extended tube on the main one there will always be some fuel left in that side of the tank, however I don't know whether this is sufficient as a reserve or not.
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Re: fuel petcocks

Postby L.A.B. » Mon Apr 27, 2009 10:50 pm

dave M wrote:Has anyone tried using two reserve fuel petcocks instead of one main and one reserve? It strikes me that with the extended tube on the main one there will always be some fuel left in that side of the tank, however I don't know whether this is sufficient as a reserve or not.


Yes, you would have a bit of fuel left if you did that, but the actual amount would depend to a certain extent, on the tank type/size, length of the tap's "main" supply standpipes, and the height of the tank's frame tunnel?
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Re: fuel petcocks

Postby splatt » Tue Apr 28, 2009 2:36 am

Only if you like pushing your bike vast distances,if you lean it right over you can get 4~5 slow km,if you are riding hard in a twisty section about 1/2km it shouldn't be to hard to guess how I know.I just love 11 litre roadster tanks. :oops: :oops:
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Re: fuel petcocks

Postby debby » Tue Apr 28, 2009 6:53 am

I run reserve taps on both sides. Haven't run out of gas yet! :P (I look in the tank before each ride and top off before each long ride however). I use the right tap as main and the left as reserve.

In the garage, there's 1/2 gallon (US) remaining in the left side after I drain the right side dry. Sounds like that could vary under actual riding conditions however!

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Re: fuel petcocks

Postby L.A.B. » Tue Apr 28, 2009 10:55 am

dave M wrote:Has anyone tried using two reserve fuel petcocks instead of one main and one reserve? It strikes me that with the extended tube on the main one there will always be some fuel left in that side of the tank, however I don't know whether this is sufficient as a reserve or not.


I read and posted my first reply in a bit of a hurry before leaving for work, so I misread your question, as I understood it, I thought you meant using two taps that had both main and reserve positions.

So if you were to fit two reserve (only) taps, and run with only one of them open, that would leave maybe about one to two litres or so, as Debbie said (0.5 US Gal being just under 2 Ltrs.) as your only reserve in a Roadster tank, with next to no "emergency" reserve (tip the bike over to get the remainder of fuel in the tank on one side).
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Re: fuel petcocks

Postby BillT » Tue Apr 28, 2009 11:46 am

L.A.B. wrote:I read and posted my first reply in a bit of a hurry before leaving for work, so I misread your question, as I understood it, I thought you meant using two taps that had both main and reserve positions.

So if you were to fit two reserve (only) taps, and run with only one of them open, that would leave maybe about one to two litres or so, as Debbie said (0.5 US Gal being just under 2 Ltrs.) as your only reserve in a Roadster tank, with next to no "emergency" reserve (tip the bike over to get the remainder of fuel in the tank on one side).


I've done what LAB mentioned, and tipped the bike over for 'emergency' fuel. I wasn't paying too much attention to the miles covered, and ran into my reserve about 20 miles from a gas station. I ran out with about a mile to go, and lay the bike over on its side to splash the little bit of fuel over from the main side - got me to the station. I've thought about running two reserve taps, but feel that little bit of 'emergency' fuel on the main tap side is insurance against doing something dumb (like running with both taps open).
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Re: fuel petcocks

Postby Hortons Norton » Tue Apr 28, 2009 1:24 pm

That's what I did once, Started running out turned on reserve fueled back up got on the road. Later once again started running out again and to my surprise someone forgot to turn the reserve off, Pushed the bike a mile or so and now I never forget. Kinda funny even the wife won't forget this bit of stupidity as she had to walk along side me down the road, But the bike itself has never let me down only me it. LOL
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Re: fuel petcocks

Postby splatt » Tue Apr 28, 2009 9:41 pm

I believe the correct method is to stay seated while wife pushes :shock: :shock:
Hortons Norton wrote: she had to walk along side me down the road, But the bike itself has never let me down only me it. LOL
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Re: fuel petcocks

Postby swooshdave » Tue Apr 28, 2009 9:53 pm

splatt wrote:I believe the correct method is to stay seated while wife pushes :shock: :shock:
Hortons Norton wrote: she had to walk along side me down the road, But the bike itself has never let me down only me it. LOL


Someone who is a) single or b) has a wife with no access to the internet. :D
You probably want to go into town, and find a up to date Jap Bike store,
With a full spares department, a clean workshop, and kean young mechanics.
And ask them if theres a Grumpy Old Bloke out in the Hills, who knows how to fix Real Motorcycles.

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