pikey
Bad ass biker
Posts: 342
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Post by pikey on Jun 13, 2012 21:10:32 GMT 1
I hope that clear fuel is Tygon or similar because it may very quickly deteriorate if it isn`t! How much ethanol is in the Dutch fuel 10%? Oh and yes, the spring doesn`t even have to be on the inside of the tube either, even if it`s a snug fit on the O/D of the pipe it`ll stop it kinking. Remember though, as that clear tube get`s hot or compromised by fuel it`ll soften, perhaps harden too.
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Post by De Graaf van Salland on Jun 13, 2012 21:14:27 GMT 1
Hi Mark from Denmark, Remembring a certain football match a few days ago, I don't think I should be offering any advice to a danish person........ Ah, but you're an NTV rider, so I'll forgive you for being danish ;D ;D I don't think that the position of the studs makes a lot of difference. Here's a photo of the original fuel pump in original position: On this photo you can see that the suction side of the pump (inlet) is just a bit lower than the pressure side. On the other hand, you could have, accidentally, fitted the fuel tubes on the wrong opening of the pump. And then, later (after removing the diode) , fitted them correctly again (also by accident). The "inlet" side of the pump is marked. This side should be connected to the tank. But personally, I have a feeling that you have soldered the diode in the wrong way 'round. Look carefully on the diode and you will see a ring at one end of it. This indicated the direction in which the electrical current can flow. If you've fitted the diode the wrong way round, the pump gets no voltage, because the current flows through the diode instead of the pump. I think this website will explain it all: hankeln.net/freizeit/nt650v5/fuelpump-diode_en.html(This is written for a Deauville 650, but the pump is the same.) Perhaps you've already seen my website: I decided to completely replace the pump: www.stoeretassen.nl/My_NTV650/Benzinepomp2/Fuel_pump_replacement.htm. This pump already has the diode installed & is completely sealed. Two youtube video's: This is the pump without the diode: And this is the pump with the diode fitted. Good luck with it. GvS
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alexdk
Restricted to 33BHP
Best regards Alex (the Dane)
Posts: 51
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Post by alexdk on Jun 14, 2012 8:28:21 GMT 1
Hi GvS and everybody else
Sorry about the football match :-) I have planned to visit Holland in 14 days (MotoGP in Assen), so hope that Danes are still welcome...
I took the NTV for a ride last night (80 km) and "she" runs beautiful with a full gas tank... :-) At the moment I´m riding without diode in the fuel pump. So my thought is, that I will drain some of the fuel out of the tank (leave 2-3 liters in the tank) and try taking the NTV for a ride..
If the NTV will drive with 2-3 liters in the tank and NO diode in the fuel pump I guess the fuel pump is working, but the pump is still sparkling..
I will then try to solder a new diode on to the fuel pump (paying close attention to the direction of the diode) and see if GvS's theory is correct (diode soldered on backwards)..
But I guess/think.... At the moment I can feel that the fuel pump is pumping and see that there is a spark in the fuel pump... So wouldn´t it be possible to sodler on a new diode, place a hand on the pump and feel when the pump (with diode) is pumping ??
And lastly before I start with the soldering.. How many volts should I be able to measure in the wire going to the fuel pump? - There is a small wire connection about 10 cm from the top of the fuel pump, that I have planed to measure in..
Best regars Alex (the Dane)
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hairyuk
All Weather Rider, well hard
Posts: 155
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Post by hairyuk on Jun 14, 2012 9:23:12 GMT 1
the output stud being higher will be to get the air out of the system
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Post by De Graaf van Salland on Jun 14, 2012 12:17:54 GMT 1
Sorry about the football match :-) I have planned to visit Holland in 14 days (MotoGP in Assen), so hope that Danes are still welcome... Well, I'd rather loose from the Danes than from the Germans..... but, unfortunately both happened........ And lastly before I start with the soldering.. How many volts should I be able to measure in the wire going to the fuel pump? - There is a small wire connection about 10 cm from the top of the fuel pump, that I have planed to measure in.. With the bike running, I would guess the voltage measured over the battery-terminals should be 13 - 14 volts. But the voltage supplied to the pump will be 1-2 volts lower, because of the "fuel-pump-relay". This is a safety switch, which makes sure that no petrol is pumped to the carbs in case the engine is not running. This switch is, in fact, a big transistor. And because the voltage for the pump is supplied through this transistor, it loses 1-2 volts on the way. If the pump is running, you can feel it. Also, if you can see the sparks, the pump is running as well. But the best way to check, is simply remove the tube from the pressure side of the pump. Then attach a different tube to the pressure side; put the end of this tube into a suitable container. Hold the container about 0,5 mtr above the bike, so the pump has to pump the petrol upwards. Then try to start up the bike (it may also run for a short while on the remains of the petrol in the float chambers of the carbs.). You should get a healthy flow of petrol out of the end of the tube. The only reason to fit the diode is to prevent the sparks. Because the sparks eats away the contact points, which makes the pump fail in the end. Always be carefull when working with petrol; wear eye protection. make sure there is plenty ventilation. GvS
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alexdk
Restricted to 33BHP
Best regards Alex (the Dane)
Posts: 51
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Post by alexdk on Jun 14, 2012 13:37:31 GMT 1
Hi again
I haven't thought about rising a container ½m over the actual fuel tank, and then see if the fuel pump can pump petrol higher then the fuel tank.. nice little test GvS :-) I will do that after work in a couple of hours..
I dont know how the weather is in Holland or England, but here i northern Jutland the weather is 15 degrees, mild winds with a couple of clouds... but hey, that also perfect motorcyle weather, so sitting here at the office looking out the window on the NTV kind of makes me want to take an "early day" and go home a work on the fuel pump... d**n work, it takes away a lot of good riding time..
will post again later, after the test :-)
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Post by ilegalalien on Jun 14, 2012 16:14:39 GMT 1
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hairyuk
All Weather Rider, well hard
Posts: 155
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Post by hairyuk on Jun 14, 2012 16:18:56 GMT 1
ok what is football ?
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alexdk
Restricted to 33BHP
Best regards Alex (the Dane)
Posts: 51
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Post by alexdk on Jun 14, 2012 19:10:21 GMT 1
Hi All First of i tried to fill a container above the gas tank as GvS suggested. The fuel pump (without diode) raised the fuel above the gas tank without problem :-) So fuel pump is working.
Then i dismantled the fuel pump and soldered a new diode on the pump (paying attention to the catode).. Then I started the NTV (without problem) and looked at the fuel pump.. Now there is NO flash :-) and things are looking great.. Then I tried to raise a container above the fuel tank and test if the Diode-pump worked ?? - I did :-)
So I guess the problem is solved... Thanks for the help...
I guess the problem was a diode fitted the wrong way...
Best regards Alex
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Post by De Graaf van Salland on Jun 14, 2012 20:49:51 GMT 1
So I guess the problem is solved... Thanks for the help... I guess the problem was a diode fitted the wrong way... That's what this forum is for. ;D ;D ;D
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Post by McF on Jun 15, 2012 7:35:35 GMT 1
It's a battle between two teams of mindless thugs over scraps of coloured cloth. Usually accompanied by the spectacle of 22 overpaid primadonnas kicking a ball on a field.
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groovylee
Sheene Gold rider. Nuff said
Member of the QA team
Posts: 648
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Post by groovylee on Jun 15, 2012 7:56:18 GMT 1
good description McF ;D
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Post by skyhook on Jun 15, 2012 9:38:58 GMT 1
It's a battle between two teams of mindless thugs over scraps of coloured cloth. Usually accompanied by the spectacle of 22 overpaid primadonnas kicking a ball on a field. But McF is the same over a cup of tea...........lol Just don't get inbetween McF and he's tea..........lol He dose go on about overpriced tea.......lol.................. Not that he ever pay's.........lol
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Post by ilegalalien on Jun 15, 2012 10:45:07 GMT 1
Perfect description McF... i'll add.. it's also watched on tv by ppl like me... with my HD tv and HD cider and my Nutty g/f... We love shouting at a ref who can't hear us...
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Post by Buzzin (^_^) on Jun 17, 2012 23:17:44 GMT 1
It's a battle between two teams of mindless thugs over scraps of coloured cloth. Usually accompanied by the spectacle of 22 overpaid primadonnas kicking a ball on a field. That's going into my book as one of the best descriptions ever
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