Fuel pump not arming - Page 2 - SV650.org

phil24_7 · 27-09-12, 12:00 PM

Right...just tested the fuel pump connector. Yellow/Black wire has 11.7v Yellow/Red wire has 0.08v does this sound about right or should the Yellow/Red wire have more voltage for the pump to prime?

Regards
Phil

phil24_7 · 27-09-12, 12:40 PM

Right, I think I have ruled out the alarm. I just took it apart again and tested the in and out voltages for the 2 immobilisation circuits. Whatever is being fed in is fed out. 11.7v for the fuel pump and 0.8v for the starter (couldn't test it properly as couldn't hold the multimeter and start it at the same time). So I now seem to have ruled out the fuel pump and the alarm which leaves me with the tilt sensor I think?

Just to clarify clutch, kill and sidestand switch all function as they should.

Anyone have anything else I should look for or tell me where the Yellow/Red wire from the fuel pump runs to?

Regards

phil24_7 · 27-09-12, 12:41 PM

Is there any way I can manually fire up the fuel pump?

phil24_7 · 27-09-12, 12:46 PM

Dealer mode reports no faults!

Sid Squid · 27-09-12, 01:22 PM

The pump is suspect, to make certain apply 12V to the pump, if it doesn't spin this will be confirmed. The dealer mode is not capable of showing a code shown for this.

I've diagnosed the same fault a couple of times, both have been after sitting unused for a while.

I'm struggling to understand why the alarm was ever suspect.

phil24_7 · 27-09-12, 02:26 PM

It's usually the alarms fault when bikes don't start!

Which wire do I need to run 12v to? There are 3 wires to the fuel pump, an earth and 2 other wires. What are these for?

I thought the Yellow/Red wire was to prime the fuel pump? This one has no voltage on it when the ignition is on. The Yellow/Black wire has 12v, what is this one for?

The bike has only be sat for 2 months since the last time it was used!

Cheers for your help Sid.

phil24_7 · 27-09-12, 02:31 PM

Incidentally...does anyone know if the K5 gixer fuel pump is the same? I have one of these in the cellar if it does!

Regards

27-09-12, 02:53 PM

Check the fuses. I had my SV cut out on me coming off of a slip road and the symptoms after that happened sound similar to yours. Just worth checking them if you haven't already

phil24_7 · 27-09-12, 03:35 PM

Right, after reading a thread on svrider.com I have found out how to properly test the fuel pump. The 11.7v was for the fuel level indicator, the other wire was for the fuel pump. This is only live for a short time after the ignition is turned on. This showed over 12v when the ignition is turned on, so now I know the fuel pump is knacked. Apparently someone on svrider brought theirs back from the dead with some carb cleaner or easi start so I will read up on that thread before I try the same. Barring that, it will be a second hand pump from ebay unless the GSXR on fits!

Regards

Bibio · 27-09-12, 03:46 PM

if you think its the pump try disconnecting the fuel hose at TB end put in a container then connect a 12v feed to the pump and see if it actually pumps petrol out.

27-09-12, 12:00 PM	#11
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Right...just tested the fuel pump connector. Yellow/Black wire has 11.7v Yellow/Red wire has 0.08v does this sound about right or should the Yellow/Red wire have more voltage for the pump to prime? Regards Phil __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 12:40 PM	#12
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Right, I think I have ruled out the alarm. I just took it apart again and tested the in and out voltages for the 2 immobilisation circuits. Whatever is being fed in is fed out. 11.7v for the fuel pump and 0.8v for the starter (couldn't test it properly as couldn't hold the multimeter and start it at the same time). So I now seem to have ruled out the fuel pump and the alarm which leaves me with the tilt sensor I think? Just to clarify clutch, kill and sidestand switch all function as they should. Anyone have anything else I should look for or tell me where the Yellow/Red wire from the fuel pump runs to? Regards __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 12:41 PM	#13
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Is there any way I can manually fire up the fuel pump? __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 12:46 PM	#14
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Dealer mode reports no faults! __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 01:22 PM	#15
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Fuel pump not arming The pump is suspect, to make certain apply 12V to the pump, if it doesn't spin this will be confirmed. The dealer mode is not capable of showing a code shown for this. I've diagnosed the same fault a couple of times, both have been after sitting unused for a while. I'm struggling to understand why the alarm was ever suspect. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

27-09-12, 02:26 PM	#16
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming It's usually the alarms fault when bikes don't start! Which wire do I need to run 12v to? There are 3 wires to the fuel pump, an earth and 2 other wires. What are these for? I thought the Yellow/Red wire was to prime the fuel pump? This one has no voltage on it when the ignition is on. The Yellow/Black wire has 12v, what is this one for? The bike has only be sat for 2 months since the last time it was used! Cheers for your help Sid. __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 02:31 PM	#17
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Incidentally...does anyone know if the K5 gixer fuel pump is the same? I have one of these in the cellar if it does! Regards __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 02:53 PM	#18
mikeladhams Guest Posts: n/a	Re: Fuel pump not arming Check the fuses. I had my SV cut out on me coming off of a slip road and the symptoms after that happened sound similar to yours. Just worth checking them if you haven't already

27-09-12, 03:35 PM	#19
phil24_7 Member Mega Poster Join Date: Jan 2007 Location: Plymouth, England Posts: 3,787	Re: Fuel pump not arming Right, after reading a thread on svrider.com I have found out how to properly test the fuel pump. The 11.7v was for the fuel level indicator, the other wire was for the fuel pump. This is only live for a short time after the ignition is turned on. This showed over 12v when the ignition is turned on, so now I know the fuel pump is knacked. Apparently someone on svrider brought theirs back from the dead with some carb cleaner or easi start so I will read up on that thread before I try the same. Barring that, it will be a second hand pump from ebay unless the GSXR on fits! Regards __________________ Phil I'm not here for a long time, I'm here for a good time! Blue SV650 K3, GSX-R K5 front end, TL1000S clip-ons, lower fairings, seat cowl, gel seat, Pyramid undertray, R&G crash bungs, stainless steel bar ends, full titanium Akrapovic exhaust, Power Commander, clear rear light, flush mount front indys, mini rear indys, Autocom 300 duo intercom, Acumen cat 1 alarm and Micheline Pilot Power 2ct's.

27-09-12, 03:46 PM	#20
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: Fuel pump not arming if you think its the pump try disconnecting the fuel hose at TB end put in a container then connect a 12v feed to the pump and see if it actually pumps petrol out.

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