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  1. I

    Fuel pump constantly running

    The vent line is clear. Fuel pump has been replaced. All of the fuel line from the tank to the carbs is new. The plugs are new. Changed to COPs and they are all firing. Plugs are gapped to the specs that came with the COP install instructions. Voltage at idle is 13.05 which does seem a bit...
  2. I

    Fuel pump constantly running

    Yes, the gap is correct per the instructions that came with the cops. Joints all look good, and I've sprayed carb cleaner around them to verify.
  3. I

    Fuel pump constantly running

    Well I am still having the issue with the bike idling only on carbs 1 & 2. Tonight I turned the mixture screws all the way in on carbs 1 & 2, left 3 & 4 open, turned on the choke and the bike fired right up running on 3 & 4. I let the bike warm up, turned off the choke and the bike actually...
  4. I

    Fuel pump constantly running

    I know all of the coils are fine, I just installed COPs from Gannon. I have tried swapping them around. I would think if cylinder 4 was being flooded with fuel there would have to be smoke coming out of the exhaust. It's almost like the idle circuit is plugged on carb 4, but it has been...
  5. I

    Fuel pump constantly running

    My boots all look ok. The fuel pump seems to only constantly run after the bike has reached operating temperature. Guess I could spray some carb cleaner around the boots and see if that affects the idle. I also get quite a bit of backfiring on deceleration that it never used to have. Did you...
  6. I

    Fuel pump constantly running

    Well I replaced all the lines and fuel filter going from the tank to the pump and the line to the carbs. The fuel pump would still start to constantly run when the bike got hot, and you shut the bike down, cycle the key and it would constantly prime. If you let the bike cool off for a bit, it...
  7. I

    Odyssey PC 680

    Have a couple of questions. Do I need any hardware, i.e. the L brackets etc.? Or can I just screw the connections right to the terminals? I assume the battery comes with the screws needed. Thanks
  8. I

    Fuel pump constantly running

    Switch is definitely in the ON position. I didn't think switching to RES. would make the pump run constantly, I read here on the forum that it makes it operate when the low fuel light comes on, because it cuts off when there is low fuel in the ON position. Why would it need to run constantly...
  9. I

    Fuel pump constantly running

    Well, when it's idling and not having any issues (like sucking air) I would say it will click about once a second or so. Sometimes a little quicker, sometimes a little slower, but I don't think the pump should be constantly running when the engine idling. I doubt there is any published spec...
  10. I

    Fuel pump constantly running

    The vent tube is totally clear. Since replacing all the line, and putting the fuel filter back in the line, if I cycle the key the pump seems to running longer than it should. Also, I just got it to run continuously with the bike idling. After a minute the pump calms down to a click every...
  11. I

    Fuel pump constantly running

    So I replaced the line from the tank to the pump and bypassed the filter. Started the bike, listened to the pump and it sounded normal. Even after the bike was fully warmed up and the fan kicked on, the pump was still only clicking about once a second or so. Looks like I may have found the...
  12. I

    Fuel pump constantly running

    Yes, you could be right. I just ran the bike again and the pump seemed fine, then as the bike idled the pump started constantly running again. I then shut the bike down, took the fuel line off the carbs and put it into a glass. Turn the key on and the pump started sputtering fuel, then after...
  13. I

    Fuel pump constantly running

    Well I finally go the carbs back on the bike and fired it up. Did a sync and everything seemed fine. Then I decided I would pull out my long screwdriver again and have a listen to the pump. While idling I would hear a click every couple of seconds. Then gradually as the bike started to warm up...
  14. I

    Fuel pump constantly running

    Nope, never any flooding externally. I just hooked up carbs 3 & 4 individually and of course it takes a couple of key cycles to fill up the bowls. After that I can turn the key on and off and the pump isn't running! Now I'm confused. Maybe it's one of the hoses doing something weird? I did hook...
  15. I

    Fuel pump constantly running

    Looks like the time is a little off on these posts. Must be something with moving the site. Yeah, I hooked all 4 up and the pump seems fine. Not sure what's going on, maybe the clamp wasn't tight enough going from the pump to the carbs? What is up with that weird clamp anyway? Can't a...
  16. I

    Fuel pump constantly running

    Well I got the carbs off the bike and split into pairs yesterday.. Of course that took all of about 15 mins. Getting good at it now.. I was being lazy today so I dig into it tomorrow. Figure I'll hook up the fuel to each carb individually and see what the pump does. Focusing on carbs 3 & 4...
  17. I

    Fuel pump constantly running

    Yes, the bike runs fine above idle, all cylinders fire then. I have check the voltage and it's fine. If the floats are correct, which I think they are, fuel has to be getting past the O-rings on the needle valve seats. I'll find out for sure this weekend.. I hope the crankcase isn't filled...
  18. I

    Fuel pump constantly running

    My pump didn't quite look the same as the one that is posted on this site. I did see a couple of rubber diaphragms and they looked to be in place. If they had fallen out I would have seen them for sure when I opened it up. Yes, with my finger plugging it there was definitely some force and a...
  19. I

    Fuel pump constantly running

    Yeah I'll do that in the next few days. I think I can run the fuel line to each carb with them still on the bike. I doubt there will be any rust coming from the tank. I live in Vegas, very dry climate and the bike spends very little time outside. Thank you for the suggestions, appreciate it!
  20. I

    Fuel pump constantly running

    Yeah I have already opened the fuel pump, didn't see anything floating around. My pump looks a bit different than the one used as an example here. My bike is an '03, maybe newer than the one used. There is nothing wrong with the pump if I can plug it with my finger and it doesn't run when...
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