Can someone help with college stuff?

[Nemo]

So I'm on my next essay for college to go towards my level 3 diploma.

I've got to write about all of the components of a fuel injection system on a motorcycle of my choice, that being a TL1000R since I already have a damn good workshop manual for it.

All I would like the mass to help me with is the construction of a generic FI fuel hose, and how/if it differs from fuel hose used on carbed motorcycles, and also what the typical pressure value they can withstand (I know the system is pressurized at ~45-50psi ish), and also how they prevent vapour loss.

When I search im just finding companies blagging how their particular hose is mega awesome...

Pretty boring I know, but I have got 1500 more damn words to go.

Luckily I haven't got to reference so fire away.

Any help appreciated with thanks!
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Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83, Honda ntv 600, Kawasaki ER5, Kawasaki ZZR600, Aprilia RSV 1000 Mille
Now own: Ducati 848 evo

[mic]

Well here's my 2p worth

It won't have a manual choke

Hth

Edit.... actually it might have. Don't know.

Hth
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zzr600

[Nemo]

[Jonathan A]

This sounds like utter bollox. Glad I took Media Studies

[WD Forte]

I'd guess its just pressure related
'normal' fuel hose has to handle virtually no pressure
FI hose has to withstand the system working pressure and the usual practise is to rate it well beyond expected

Its probably braided in the same way brake hoses are braided to prevent 'ballooning '
It may also have mechanical outer protection from chafing and heat

Materials:
early stuff may have been rubber but modern stuff uses synthetic
materials like Nitrile/Butyl/Silicon rubber all of which have slightly different characteristics

I'd try googling it and do some nifty plagiarism if I were you
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bikers smell of wee

[G]

It should have a part number on the side of it.
Whether you can find details without the hose in hand is another matter, as generally the bike companies don't want you to know you can get the same part for a tenth the price from a generic supplier .

[stinkwheel]

Presumably you'd want some sort of emergency cutout so it doesn't keep spraying loads of fuel all over your hot engine if you rupture a fuel line.

Used to happen with early car FI systems.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Northern Monkey]

https://lmgtfy.com/?q=fuel+hose+manufacturing+process


https://www.hbdthermoid.com/images/automotive/Automotive%20Aftermarket%20Hose%20and%20Accessories%20(THB-198059_2012).pdf

[Nemo]

[WD Forte]

Whoa !!!!
Steady on there
Its only a couple of links not a personal attack
What if the guys just trying to help?
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bikers smell of wee

[G]

[Northern Monkey]

You said

[WD Forte]

Ahh I see
Thanks
LMGTFY wont load on my PC as I only load javascript on selected sites
I can see how it may have stung a wee bit

Ho hum, will back out and close the door quietly................
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bikers smell of wee

[Pete.]

Fuel injection hose normally has a spiral-wound aramid fibre reinforcement in the walls to cope with the extra pressure used to feed the injectors. Fuel hose for carburetors doesn't need any reinforcement as it's used at a few psi at most.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[lihp]

https://www.goodyearep.com/ProductsDetail.aspx?id=17700
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covent.gardens: lihp is my most favourite member ever

[Aff]

You could have a read of SAE J30, it is the standard for oil and fuel hoses and lays out specifications and testing procedures.

I believe PTFE fuel hose is considered the dogs dangalies at the moment (probably better known by the brand name Teflon) purely for the fact that it doesn't really react with anything, so is virtually maintenance free. You can then also braid it to counteract deformation under pressure.

Fuel hose reacting with things is maybe a good point to talk about and will definitely use up some words.

Maybe go into the effects of the addition of Bio-Ethanol into fuel and the consequences on the materials used, and how specifications have had to change. Namely SAE J30R6 (the old standard) has had to be updated to SAE J30R9 which outlines the standards of fuel and oil hoses which must be able to hold a fuel with a 50% Ethanol content.

Here is a riveting read about the effects of ethanol on fuel hoses and carbs. Has some good graphs you can steal.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Nemo]

[lihp]

[Nemo]

I was thinking the same, but he was talking more if the fuel pipe splits and fuel leaks everywhere rather than fall over.
____________________
Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83, Honda ntv 600, Kawasaki ER5, Kawasaki ZZR600, Aprilia RSV 1000 Mille
Now own: Ducati 848 evo

[SQL]

[Nemo]

Fuel pressure regulator can't tell though since its not electonic.

Bike wouldn't run too great though, if at all.
____________________
Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83, Honda ntv 600, Kawasaki ER5, Kawasaki ZZR600, Aprilia RSV 1000 Mille
Now own: Ducati 848 evo

[Nemo]