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Agreed. Fuel pump failure is rare at this Forum, and that is great.
However, the same cannot be said of some other Honda forums where pumps are at high risk.
This year Honda Corporation had a significant recall/warranty effort and due to fuel pump failures affecting bikes and cages. I hazard to guess the CB1100 does not have this issue. The problem had to do with the propulsion system components disintegrating. For most of the year, Honda had a shortage of validated pumps.
In any case, electrical components do fail for random reasons and maybe jdgrego1 you are just a rare statistic. Hopefully you can remain happy.
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(10-19-2020, 12:32 PM)max_imp Wrote: JD just be a bit careful testing the fuel pump, they are designed to be submerged in fuel, no oxigen is normally present, if you run it do it in a safe ( outside) way, see what i'm saying?
Yes, Max's caution is well founded. Gas fumes, enclosed quarters, and a spark from your jumper battery could make things ugly quickly.
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I'd triple check the kill switch.
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(10-19-2020, 11:43 AM)pekingduck_imp Wrote: Injectors can bleed a little bit of fuel overnight, the pump goes on for a few seconds when the key is first turned on to fill the fuel line to the injectors to prime it so it starts instantly.
At this point I would take the pump out and see if the actual pump can be freed up if it is locked up. As fuel pump failures are extremely rare as Popgun says, I'm curious how long that tank of gas actually sat in the bike. Could it be years?
That also brings up the question of the injectors possibly also being clogged.
Shop around for fuel pump prices - https://www.hondaparts-direct.com/ has pump/filter/gasket for under $400.
No, the gas wasn't in there for years, I rode it a few months ago- it was possibly in there for 4 to 6 months I'm not sure. I tested the FP by hooking up battery and ground to the 4P connector- with the tank off - nothing, nada, no sound, I'm not planning to remove the FP from the tank until the new one is in hand. it's on order...
(10-19-2020, 12:50 PM)GoldOxide_imp Wrote: Agreed. Fuel pump failure is rare at this Forum, and that is great.
However, the same cannot be said of some other Honda forums where pumps are at high risk.
This year Honda Corporation had a significant recall/warranty effort and due to fuel pump failures affecting bikes and cages. I hazard to guess the CB1100 does not have this issue. The problem had to do with the propulsion system components disintegrating. For most of the year, Honda had a shortage of validated pumps.
In any case, electrical components do fail for random reasons and maybe jdgrego1 you are just a rare statistic. Hopefully you can remain happy.
yea, I've been a rare statistic in other regards as well  and yes I will remain happy - 
(10-19-2020, 01:01 PM)pekingduck_imp Wrote: (10-19-2020, 12:32 PM)max_imp Wrote: JD just be a bit careful testing the fuel pump, they are designed to be submerged in fuel, no oxigen is normally present, if you run it do it in a safe ( outside) way, see what i'm saying?
Yes, Max's caution is well founded. Gas fumes, enclosed quarters, and a spark from your jumper battery could make things ugly quickly.
Yes, Max's caution is well founded. Gas fumes, enclosed quarters, and a spark from your jumper battery could make things ugly quickly.
yep, working outside - don't want to go boom!
(10-19-2020, 01:13 PM)PowerDubs_imp Wrote: I'd triple check the kill switch.
haha- yes- I did, and the relays, I really wanted it to be something other than a 500 fuel pump!
one point brought up by Pekingduck- injectors might be clogged- whats a good way to verify/ensure they are not clogged and correct if they are? I could do that while awaiting parts- I am assuming even if they were clogged that wouldn't 'kill' the pump, yes? no? man it would have been so much easier to just get on that pony and ride consistently...... now I know! you can bet your BP this won't happen again!
PS- maybe I can blame this on Covid19? Not riding due to not getting out, working from home, etc... haha!
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I wouldn't think the fuel was old enough to be the cause of the failure then, so injectors likely okay. No real way to test the injectors for spray pattern or leakage without a pump. They are simply a solenoid in them, and you can see if it clicks by hooking a 9-volt battery to it momentarily.
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Sounds like you've got the right answers JD, as you may know injectors have very fine mesh to filter out small particles, a bit similar to the old style fuel petcocks.
If the bike ran fine prior to the storage there would be no reason to suspect a set of blocked filters, it does happen but over a longer period and would show up at the fuel pump filter, it would manifest itself by restricting higher speed riding and accelerating, in all probability the engine would still start.
Usually there is only one fault at a time and for the 6 months ( worst case ) that does not sound alarming, if you want you can unplug one of ( the easiest one ) the injector connectors and apply 12 volts, i never tried it but suspect you would hear a click of sorts when things move inside.
Maybe someone can explain how the fuel pressure is maintained in our bikes, that has always been a puzzle to me?
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(10-19-2020, 03:12 PM)pekingduck_imp Wrote: I wouldn't think the fuel was old enough to be the cause of the failure then, so injectors likely okay. No real way to test the injectors for spray pattern or leakage without a pump. They are simply a solenoid in them, and you can see if it clicks by hooking a 9-volt battery to it momentarily.
Pekingduck- you say 9-volt battery? Curious, why 9v instead of 12v?
Thanks, John
(10-19-2020, 03:20 PM)max_imp Wrote: Sounds like you've got the right answers JD, as you may know injectors have very fine mesh to filter out small particles, a bit similar to the old style fuel petcocks.
If the bike ran fine prior to the storage there would be no reason to suspect a set of blocked filters, it does happen but over a longer period and would show up at the fuel pump filter, it would manifest itself by restricting higher speed riding and accelerating, in all probability the engine would still start.
Usually there is only one fault at a time and for the 6 months ( worst case ) that does not sound alarming, if you want you can unplug one of ( the easiest one ) the injector connectors and apply 12 volts, i never tried it but suspect you would hear a click of sorts when things move inside.
Maybe someone can explain how the fuel pressure is maintained in our bikes, that has always been a puzzle to me?
Thanks Max, appreciate the info- :-)
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(10-19-2020, 03:20 PM)jdgrego1_imp Wrote: (10-19-2020, 03:12 PM)pekingduck_imp Wrote: I wouldn't think the fuel was old enough to be the cause of the failure then, so injectors likely okay. No real way to test the injectors for spray pattern or leakage without a pump. They are simply a solenoid in them, and you can see if it clicks by hooking a 9-volt battery to it momentarily.
Pekingduck- you say 9-volt battery? Curious, why 9v instead of 12v?
Thanks, John
(10-19-2020, 03:20 PM)max_imp Wrote: Sounds like you've got the right answers JD, as you may know injectors have very fine mesh to filter out small particles, a bit similar to the old style fuel petcocks.
If the bike ran fine prior to the storage there would be no reason to suspect a set of blocked filters, it does happen but over a longer period and would show up at the fuel pump filter, it would manifest itself by restricting higher speed riding and accelerating, in all probability the engine would still start.
Usually there is only one fault at a time and for the 6 months ( worst case ) that does not sound alarming, if you want you can unplug one of ( the easiest one ) the injector connectors and apply 12 volts, i never tried it but suspect you would hear a click of sorts when things move inside.
Maybe someone can explain how the fuel pressure is maintained in our bikes, that has always been a puzzle to me?
Thanks Max, appreciate the info- :-)
Pekingduck- you say 9-volt battery? Curious, why 9v instead of 12v?
Thanks, John
12 volts is fine to test. 9v was just something quick and handy I had learned and had made a self contained test harness for.
(10-19-2020, 03:20 PM)jdgrego1_imp Wrote: (10-19-2020, 03:12 PM)pekingduck_imp Wrote: I wouldn't think the fuel was old enough to be the cause of the failure then, so injectors likely okay. No real way to test the injectors for spray pattern or leakage without a pump. They are simply a solenoid in them, and you can see if it clicks by hooking a 9-volt battery to it momentarily.
Pekingduck- you say 9-volt battery? Curious, why 9v instead of 12v?
Thanks, John
(10-19-2020, 03:20 PM)max_imp Wrote: Sounds like you've got the right answers JD, as you may know injectors have very fine mesh to filter out small particles, a bit similar to the old style fuel petcocks.
If the bike ran fine prior to the storage there would be no reason to suspect a set of blocked filters, it does happen but over a longer period and would show up at the fuel pump filter, it would manifest itself by restricting higher speed riding and accelerating, in all probability the engine would still start.
Usually there is only one fault at a time and for the 6 months ( worst case ) that does not sound alarming, if you want you can unplug one of ( the easiest one ) the injector connectors and apply 12 volts, i never tried it but suspect you would hear a click of sorts when things move inside.
Maybe someone can explain how the fuel pressure is maintained in our bikes, that has always been a puzzle to me?
Thanks Max, appreciate the info- :-)
Pekingduck- you say 9-volt battery? Curious, why 9v instead of 12v?
Thanks, John
12 volts is fine to test. 9v was just something quick and handy I had learned and had made a self contained test harness for. There's a 12 ohm resistance test too, but that won't tell you if it's stuck or leaking.
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If it was due to the Covid restrictions not being able to ride your bike than perhaps your health insurance will pay for the new fuel pump....
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(10-19-2020, 09:08 PM)Houtman_imp Wrote: If it was due to the Covid restrictions not being able to ride your bike than perhaps your health insurance will pay for the new fuel pump....
now THAT's funny!!! 
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