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  #1  
Old 8 Jun 2010
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AT fuel pump
Just had one hell of a night on the side of the road in Venezueala trying to sort out my friends fuel pump which gave up in the middle of knowhere.The contacts are completly worn out so we bypassed the pump,this only works when the fuel level in the tank is higher than the carbys...which it was not.Ended up towing it with my bike 20ks in pitch darkness with no lights as the battery was now flat,to a fuel station.Not something i would do again!!

My question is,roughly how many ks can you do on a tank without the pump,doing about 110-120 kph?And also is there anybody getting around Venezueala with a spare AT pump in their back pocket??
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Old 9 Jun 2010
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A very common problem on the AT. At a guess you use can less than 1/2 your tank, I would say 100 miles max. As a temporary solution carry a Jerry can on the back until you can get a replacement.

Replace the pump with a Facet 40105 or try to find an equivalent. Pressure is 3.0-4.5 psi, flow rate of 30 US gallons per hour. This pump has many applications, including cars, so you may be able to source one locally. Some people fit them on to KTM's.

Common modification done in the UK. Many threads here.

AT Fuel Pump: to recap

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Old 9 Jun 2010
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Darren has said it all.

I know it's a bit late but many AT riders carry a spare pump.

I ordered my Facet pump and then saw them in a Rally Car shop - maybe you could enquire there. Take two.

This could be wrong but I remember somewhere that a Mitsubishi car pump could be used. Don't depend on this info: it's just if things get tight for a replacement.

Good luck - it's a bastard when it dies, that pump.

Tell us how you got on?
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Old 9 Jun 2010
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Replacement Pump
Thanks lads,we ended up buying a universal pump similar to facet a pump but is the same dimensions as the original.Its rated to between 4.5 and 9 psi so hopefully thats not too much pressure to overide the needle and seat,if it is well i´ll just have to restrict the flow somehow.Maybe make an orifice of some sort.I´have tested it out and when it is pumping i can easily hold my finger over the outlet and block it.
Here´s hoping it works ok!Keep you posted.
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Old 11 Jun 2010
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Fuel pump fixed
All sorted,the after market pump went straight on and after a bit of trial and error we found the right size orifice to stop the carby overflowing at idle but not starve it at high revs.Back on the road at last!!
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Old 15 Jun 2010
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Brilliant! Worries over!

Good roads
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Old 15 Jun 2010
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Originally Posted by liam79 View Post
All sorted,the after market pump went straight on and after a bit of trial and error we found the right size orifice to stop the carby overflowing at idle but not starve it at high revs.Back on the road at last!!
I'd be keen to hear more about how to regulated the flow.

I'm having a similar problem adding a vacuum pump to a gravity fed system.

Ta, Ted

P.S. Glad to hear you're rolling again.
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Old 16 Jun 2010
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Originally Posted by *Touring Ted* View Post
I'd be keen to hear more about how to regulated the flow.

I'm having a similar problem adding a vacuum pump to a gravity fed system.

Ta, Ted

P.S. Glad to hear you're rolling again.
Hi Ted,what we did was pretty crude but it worked just the same.I used the steel insert of a hella crimp terminal.I think it was a straight joiner,and just kind of splayed one end open,flattend the other end a bit and spiggoted it in to the outlet of the pump.Of course we had it in and out half a dozen times till we got it right.
We only got another two days down the road and the voltage regulator packed it in aswell.We fried two brand new yuasa batteries before we realized it was overcharging(around 16v).Just seems to be one thing after another with this bike!!
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Old 16 Jun 2010
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Originally Posted by liam79 View Post
Hi Ted,what we did was pretty crude but it worked just the same.I used the steel insert of a hella crimp terminal.I think it was a straight joiner,and just kind of splayed one end open,flattend the other end a bit and spiggoted it in to the outlet of the pump.Of course we had it in and out half a dozen times till we got it right.
We only got another two days down the road and the voltage regulator packed it in aswell.We fried two brand new yuasa batteries before we realized it was overcharging(around 16v).Just seems to be one thing after another with this bike!!
Oh Christ.. You sure it's not a BMW with a Honda badge on it ???
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