Fuel pipe quickie

[Laverdaroo]

Evenin all,

I didn't have one on mine when it came to me in a sorry state so dont know the actual dims but can anyone confirm the ID of the fuel line for the 400/4/ I have 4.5mm in my head but cant remember where from.

fanks

[McCabe-Thiele (Ted)]

I am pretty sure it's originally 1/4" - I used 5 mm i/d others here will confirm.
I just tried to measure mine but it's not easy as the E10 proof tube open as you get the caliper it's about 2 mm wall black rubber type appearance.

NJ stated it was 5.5 mm when I asked last year so that's going to be the original size - I found some on e-bay advertised  for a scooter. it's 5 mm but not reinforced so it pushes on easily enough - does not need a clip but used one anyway.

I used an inline filter - these -https://www.ebay.co.uk/itm/132906255205 there is a taper on these so the fuel line fitted a treat sitting above the carbs with the side entry towards the fuel tap.

[Laverdaroo]

Thanks Ted, I have some of the 4.5mm but it looks tiny going from the tap to the carbs, hence the question. I have some 5.5 lurking somewhere, I'll get a bit of  that on it I reckon. Cheers for the heads up buddy.

[Bryanj]

5.5 id is thecorrect stuff,  Julie did put me on to a supplier but cant remember who

[allankelly1]

Hi Ted

Watch out for these cheap Chinese filters

They are generally not good with normal super unleaded and from experience definitely not ethanol proof

Due to the fuel tap filter not being in good condition I had some and the first one was attacked and the glue joint failed and for the second one fitted, fuel started over a period of time to dissolve the internals and made the fuel sitting in the filter turn yellow, and I think the dissolved plastic can then wind up in the carbs jets and re hardened when the fuel is not present

In the end fitted one of these all metal types that obviously are petrol proof for all grades of fuel



https://www.ebay.co.uk/itm/Aeroline-Alloy-Fuel-Petrol-Diesel-Inline-Filter-1-4-6mm-For-MOTORCYCLE-SCOOTER-/173734676326?mkcid=16&mkevt=1&_trksid=p2349624.m2548.l6249&mkrid=710-127635-2958-0


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[McCabe-Thiele (Ted)]

I found this on flea bay - https://www.ebay.co.uk/itm/251726976282?ssPageName=STRK%3AMEBIDX%3AIT&var=550653085114&_trksid=p2060353.m1438.l2649

[McCabe-Thiele (Ted)]

Hi Ted

Watch out for these cheap Chinese filters

They are generally not good with normal super unleaded and from experience definitely not ethanol proof

Due to the fuel tap filter not being in good condition I had some and the first one was attacked and the glue joint failed and for the second one fitted, fuel started over a period of time to dissolve the internals and made the fuel sitting in the filter turn yellow, and I think the dissolved plastic can then wind up in the carbs jets and re hardened when the fuel is not present

In the end fitted one of these all metal types that obviously are petrol proof for all grades of fuel



https://www.ebay.co.uk/itm/Aeroline-Alloy-Fuel-Petrol-Diesel-Inline-Filter-1-4-6mm-For-MOTORCYCLE-SCOOTER-/173734676326?mkcid=16&mkevt=1&_trksid=p2349624.m2548.l6249&mkrid=710-127635-2958-0


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As I will replace mine every year to catch any residual debris from the tank I think I will be OK - not aware of any glued joints the bowl section can be removed to enable cleaning- I like the visual aspect that I can see the fuel running through. The metal ones look good as a final fix but I would want a 90 degrees fitting not inline to keep the pipework neat. Cheers Ted

I like this version except it's inline again.

.https://www.ebay.co.uk/itm/150560856325?_trkparms=amclksrc%3DITM%26aid%3D1110002%26algo%3DSPLICE.SOI%26ao%3D1%26asc%3D20201210111451%26meid%3Dc3f59e66653e41ac9aba9d6063530ff6%26pid%3D101196%26rk%3D2%26rkt%3D12%26sd%3D201122331274%26itm%3D150560856325%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DPromotedSellersOtherItemsV2WithMLRv3%26brand%3DUnbranded&_trksid=p2047675.c101196.m2219&amdata=cksum%3A150560856325c3f59e66653e41ac9aba9d6063530ff6%7Cenc%3AAQAGAAACAP%252BfYCpOzZzca64lAk92vfHSBT%252BDF2de1nHlhyhQ50Vk0admUl%252BAfeFfzcR7AWVHow7nGLIefoCae8yNY3UQYXnTbIbSosE8uWeLlI8SB7beD0w%252BHnrUCC%252FFZ5eNOImVES47T3es3d9mLuOYKMv68w9F1rDfrqGu7o8ximcoa5M1B4UHg9zf3HuWzN0x3inzxvpzZw1kM3nE%252F7ueH1QgJQpaLbHWcUjL8GDR35Q8%252Fawug%252FtdQAB3HkvgS%252B95GYR%252FqIEnT1B3cGUePhtlnDeAL6tlkwhit09L8oHmxs7edT2NvsKJnBjLiK5LeJy3krsmAbeRg%252F%252BSiPt8nDrgIZ5oSQqIsnq3ff9E7nVXneu8k7CsADtGpYqLi%252B8hjELsHVb2UsZ6XETXDUQlPTb5JBP3YtafHc84Oaj6e7xcJGs0Bw5wtI2uyqV2%252BMS13H13N5JqI2h0Ayufkrbh2g0aSnTZLPJlUXL8X1ZFRkxUMGOKGxNWqPF35AOF%252B%252FOa7MsymMBURZC67XF7z1Dr7uT9A7h0udgaTjhyd9Kio12Gokme1uhXD5L5uK0lN%252BgwzFZdIvCb%252FD9j%252Fa4NZhJMxqZ0NQcFeeat8geBA3vFEhsE71F4UYnwXqS6vRYLb2jYKwP0CnsBGRM6Y8tiJMZ9Wkst5mTz%252FkeU8PyzD8fnL7rklfaTMClf%7Campid%3APL_CLK%7Cclp%3A2047675

[Laverdaroo]

Thanks for the info chaps, although dear, I've ordered the one you suggested which is ethanol proof (apparently) and presumably made of hand beaten gold.  :oI wont have cash to eat this week as a result and back on sawdust and wallpaper paste but it should do the do!

Thanks all for the heads up.


I had a look at those filters Ted for exactly the same reason, as it's a freshly done tank and want to keep my eye on the debris but decided against it due to size. They're for cars and are so big you either end up crimping the fuel line or it hanging out on a long bit of tube to get the required delivery.
I get you on the idea for the right angle delivery to allow for a bit more wiggle room, theres not much real estate under there. In the end I went for a tiny, flat, clear one that sits parallel with the bottom of the frame.  at 90 deg to the carbs and then it can attach above and direct feed heh union on the carbs. I've mounted it on velco which I buy by the sheet which has carpet tape on the bottom of it, it NEVER comes off and would sooner pull the paint and a chunk of frame with it rather than the adhesion go, its great stuff. I bought it for mounting the battery and associated electrical gubbins under the seat in the tray that turned out only just big enough. It meant I couldnt get any battery straps in with any degree of tidyness so decided to use velcro. Worked a treat. You need two hands to get the battery of the tray now its that good.

Top info as ever cheers all

[McCabe-Thiele (Ted)]

Thanks for the info chaps, although dear, I've ordered the one you suggested which is ethanol proof (apparently) and presumably made of hand beaten gold.  :oI wont have cash to eat this week as a result and back on sawdust and wallpaper paste but it should do the do!

Thanks all for the heads up.


I had a look at those filters Ted for exactly the same reason, as it's a freshly done tank and want to keep my eye on the debris but decided against it due to size. They're for cars and are so big you either end up crimping the fuel line or it hanging out on a long bit of tube to get the required delivery.
I get you on the idea for the right angle delivery to allow for a bit more wiggle room, theres not much real estate under there. In the end I went for a tiny, flat, clear one that sits parallel with the bottom of the frame.  at 90 deg to the carbs and then it can attach above and direct feed heh union on the carbs. I've mounted it on velco which I buy by the sheet which has carpet tape on the bottom of it, it NEVER comes off and would sooner pull the paint and a chunk of frame with it rather than the adhesion go, its great stuff. I bought it for mounting the battery and associated electrical gubbins under the seat in the tray that turned out only just big enough. It meant I couldnt get any battery straps in with any degree of tidyness so decided to use velcro. Worked a treat. You need two hands to get the battery of the tray now its that good.

Top info as ever cheers all

So which one did you go for in the end I'm not sure?

The one I posted the original link for is definitely not for a car as it's far too small mine just sits between the middle of the carbs behind the throttle half cam - the long end of the filter is sideways on to the engine so the entry connection points towards the fuel tap. The pictures show where it sits - the pipe to the tap nicely holds it away from the throttle mechanism.

.IMG_20211107_140433 by Macabe Thiele, on Flickr

[Laverdaroo]

No, sorry, I meant  the glass ones with the chrome ends.
As  mentioned, I had the 4.5mm version and only just ordered the new one this morning to fit the bigger pipe I've ordered with it but it was one like this, ( reordered in the 6mm to replace the 4.5mm). They have a magnet in so go some way to collecting a bit more potential crap coming through the line.
I've used these on all my bikes for a number of years and not had one fail yet but as they're flat can be tucked away quite nicely. I'm not in the shed at the min but will bob you a piccie when I am.

https://www.ebay.co.uk/itm/284134582427?hash=item4227bda89b:g:JZMAAOSwQqRf75ES

[allankelly1]

Hi all

For my straight alloy one





I did this




Unless you looked closer your would not even see it




Easy to get too and easy to clean plus why hide a nice shiny part away under a tank


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[Laverdaroo]

show off!
And it's sunny!...harrumph!

[allankelly1]

Hi Roo

No summer photo before the rear drum problem

Just there is not much room above the carbs and made more sense  to use the space below

Not for the purest but anybody purists looking at the bike will be moaning about the front and rear disc conversion rather than a position of a fuel filter and how could I carry out this type of wonton vandalism of a classic

Almost as much of a sin as owning a non matching numbers RD350LC

But not guilty of that one


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[Laverdaroo]

Not for the purest but anybody purists looking at the bike will be moaning about the front and rear disc conversion rather than a position of a fuel filter and how could I carry out this type of wonton vandalism of a classic


Aye but its vandalism for a reason, whether financial, performance or sheer want, who cares its not their bike I like a period correct bike thats completely OE but sometimes you simply have to......... for what ever reason.
I wont do form over function though, thats a silly idea. some of the tyres and running gear they're putting on these "cafe racer/brat/desert sled thingies is incredible. I'm no racer, I can cab on if required when the need appears  but some of the awful stuff they're 'gluing' and making fit onto these bikes is simply against physics and ultimately safety. Anway old fart rant over


Almost as much of a sin as owning a non matching numbers RD350LC

..........However, you ARE showing off now , and besides that one under the covers is not a matching frame so give over, it looks nothing like one, the engine bolt, lock washers and colour of the heads on the bottom yolk clamps are all wrong

[allankelly1]

Not for the purest but anybody purists looking at the bike will be moaning about the front and rear disc conversion rather than a position of a fuel filter and how could I carry out this type of wonton vandalism of a classic


Aye but its vandalism for a reason, whether financial, performance or sheer want, who cares its not their bike I like a period correct bike thats completely OE but sometimes you simply have to......... for what ever reason.
I wont do form over function though, thats a silly idea. some of the tyres and running gear they're putting on these "cafe racer/brat/desert sled thingies is incredible. I'm no racer, I can cab on if required when the need appears  but some of the awful stuff they're 'gluing' and making fit onto these bikes is simply against physics and ultimately safety. Anway old fart rant over


Almost as much of a sin as owning a non matching numbers RD350LC

..........However, you ARE showing off now , and besides that one under the covers is not a matching frame so give over, it looks nothing like one, the engine bolt, lock washers and colour of the heads on the bottom yolk clamps are all wrong

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