BAP fuel taps from AN

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olympus

olympus

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I purchased these a while ago, one main & one reserve.
The plate on one indicated reserve and the other on.
But I'm looking to see on the main tap (and cant see) a stand pipe under the filter thus providing a quantity of fuel below the pipe level for the reserve.
Now beginning to think the main tap is wrong??

On the same subject, is there a required fitting side for the main & reserve ..i would suspect the reserve on the left.

Thank you
 
Main on right and it should have a standpipe, but in reality depends on what tank you have as some tanks with a standpipe then need tipping over to the left to get at the standpipe 2nd reserve and so work better without.
 
olympus said:
But I'm looking to see on the main tap (and cant see) a stand pipe under the filter thus providing a quantity of fuel below the pipe level for the reserve.
Now beginning to think the main tap is wrong??
Click to expand...

The plastic framed filters normally unscrew.
Edit: https://www.feked.com/1-4-x-1-4-b.a.p.-type-fuel-tap-main.html
BAP fuel taps from AN



olympus said:
On the same subject, is there a required fitting side for the main & reserve ..i would suspect the reserve on the left.
Click to expand...

On your 1972 model and earlier, reserve would have been on the right-hand side, however this was changed to the left on late models (Mk3 etc.) but it's your choice and most prefer to have reserve on the left but whichever side it's on, there will be some fuel trapped on the main tap side as kommando said.
 
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Thanks Les. as suspected.. i removed the filter but have no standpipe fitted.
Just as well I'm in Yeovil for a meeting on Wednesday.. the car might have to take a slight detour on the way back up the 303:rolleyes:
 
kommando said:
Main on right and it should have a standpipe, but in reality depends on what tank you have as some tanks with a standpipe then need tipping over to the left to get at the standpipe 2nd reserve and so work better without.
Click to expand...
I have a Roadster tank to fit, so what is the best tap option??
 
swooshdave said:
Do you mean which side to put the reserve or which brand of tap to use?
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I was referring to the question commando said, "it depends which tank your fitting" as for the placement of Main & reserve taps. I will be fitting BAP style taps

Thank you
 
olympus said:
I was referring to the question commando said, "it depends which tank your fitting" as for the placement of Main & reserve taps. I will be fitting BAP style taps

Thank you
Click to expand...

As pointed out the BAP taps should have a standpipe integral and its doesn’t depend on the tank.

The tank dependency is only if the tank has a reserve sticker on one side, mine (73 Interstate) is on the right.
 
The Roadster being the shorter tank has the more pronounced inverted U at the back so can work without a standpipe, as LAB's pic points out the standpipe is inside the plastic filter which unscrews to reveal whether the standpipe is there or not, its a short length of plastic pipe. Best to test, you do not want what happened to me on a 1969 TR6 with a reserve of 100 yds as it had 2 reserves fitted.
 
I believe I’ve heard of BAPs missing the standpipes while being marked RES. They are Italian, right?
 
Thank you, I'll get the main tap swapped at AN next week for one with the plastic standpipe
 
swooshdave said:
I believe I’ve heard of BAPs missing the standpipes while being marked RES. They are Italian, right?
Click to expand...

I love them. Some day I'm gonna put all the petcocks that I have in a pile and get a photo of them. No matter where I bought them from they either leaked or left chunks of rubber in the fuel or both. My BAPs have been flawless. Italian, indeed.
 
I have both BAP and original type taps. Recently put the BAP back on as the others needed new o-rings...leaking. I think the BAP don’t flow as well, so will be putting the originals back on shortly.
 
After 35 years my original taps were hard to turn. I have BAPS on my interstate tank and they work perfectly. I also remove the reserve pipe and filter from them and install clear plastic filters in the fuel line midway between the tank and carbs. I don't need a reserve, I have an interstate tank. I have twice as much fuel as my roadster tank.
 
Using two "reserve" taps without standpipes was discussed not long ago on this thread, along with other options including some good 3 position taps:-

https://www.accessnorton.com/NortonCommando/main-fuel-tap-standpipe.28199/page-2#post-428328

You get between 7 and 10 miles reserve from a roadster tank, based on mine and Dommie Nator's experience, might be more (bigger tank) or less (lower central tunnel) on an interstate, try it and let us know when you start pushing!

P.s. Have just thrown away a british made lever tap that snapped when I tightened the locknut, all of 1 year old.. BAP taps on my 40 yr old Guzzi are original, later ones seem a bit more variable?

Also, nobody mentioned why you might want the reserve on the left, so you can keep the throttle open as you operate reserve tap when the engine stumbles..Presumably that's why Norton changed their convention?
 
Yes, throttle hand is something to consider for which side gets the reserve but the filler opening is also off center and frankly I like to be able to look in to see how much fuel is remaining on the reserve side. So I'm inclined to go the other way. If the bike dies at speed its a matter of pulling in the clutch, using my throttle hand to turn on the fuel and letting the clutch out to compression start. If at a stop light or such, you are pretty much screwed regardless. But it's something each rider needs to decide.
 
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