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Jsk4739
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« on: September 01, 2015, 07:09:46 PM » |
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I posted a while back when my bike hydro locked and got some great information from you guys. I am experiencing a new issue and was wondering if anyone else has had this issue. Last weekend I rode just over 300 miles, bike ran great. Well I got it out last night and it fired right up so I took off and no even a mile up the road it started sputtering and died. So I got her back home and checked basic things and put it away for the night. So today I got her out and she idles fine but seems to be starving of gas at 3000 rpm. I took the tank off and took the petcock apart and clean as a whistle. So I thought well maybe it's bad gas. So I emptied the tank and put it all back together and put 2 gallons of fresh gas in her. Same issue. Starts up and idles fine but at 3000rpm it wants to cut out and the rpms drop??? I had the carbs serviced and rebuilt 3 months ago so I don't believe that's the issue. Has anyone experienced this or have an idea of what's going on?? Thanks ahead of time for any input on this issue!
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Bighead
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« Reply #1 on: September 01, 2015, 07:22:10 PM » |
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Vacuum lines? Pinched fuel line? Open the gas tank lid and see if it still does it riding while lid is open.
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1997 Bumble Bee
1999 Interstate (sold)
2016 Wing
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Crackerborn
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« Reply #2 on: September 01, 2015, 07:48:04 PM » |
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What Bighead said. Also make sure gas is running downhill to the carbs. If you changed the OEM line and made it a shade longer to make it easier to reconnect, you probably have an upward angle in the line and that will stave our Large Ladies since they are gravity feed. Also some inline fuel filters seem to starve the Girls if you added one.
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Life is about the ride, not the destination. 97 Valkyrie Tour 99 Valkyrie Interstate  |
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Jsk4739
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« Reply #3 on: September 01, 2015, 07:48:44 PM » |
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Thanks for the reply Bighead. I checked the fuel line it's completely fine. I checked the vacuum lines I can see and they are fine. I will try riding it with the gas cap open tomorrow and see what happens. I also checked the gas tank vent line and it's fine.
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Jsk4739
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« Reply #4 on: September 01, 2015, 07:50:47 PM » |
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Crackerborn I did have the gas line replaced when the carbs were rebuilt. I will check that and let you know. I do not have an inline fuel filter so that's a non issue. Thanks
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98valk
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« Reply #5 on: September 02, 2015, 03:05:23 AM » |
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petcock diaphragm, use an eye piece look closely at the center area, even push the nipple outward. u are looking to see if the rubber coating is gone and the underlying material can be see. If so replace, it is leaking vacuum and preventing full continuous fuel flow.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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Jsk4739
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« Reply #6 on: September 02, 2015, 05:12:23 AM » |
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CA I had a brand new petcock put on when the carbs were done but I will check it anyways. Thanks
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Robert
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« Reply #7 on: September 02, 2015, 05:41:37 AM » |
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Also check the choke and make sure all carbs come back to the throttle stops and one is not pulling more air than the others. The linkage between the carbs can slip and allow one carb to not synchronize with the others essentially holding one open slightly.
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“Some people see things that are and ask, Why? Some people dream of things that never were and ask, Why not? Some people have to go to work and don’t have time for all that.”
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #8 on: September 02, 2015, 07:40:33 AM » |
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I've been going to stay out because I think the problem has been answered. I too believe it is nothing more than a fuel delivery issue such as what has been said, bad petcock diaphram, vacuum line, kinked vent or fuel line. usually the problem is the vent when the fuel tank has just been installed.
If the problem turns out to be the petcock, I recommend the Pingel.
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Jsk4739
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« Reply #9 on: September 02, 2015, 06:45:42 PM » |
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I am going to take the tank back off and check all things stated. Thanks
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Bighead
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« Reply #10 on: September 02, 2015, 06:50:16 PM » |
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Could have some trash in the High speed jet maybe?
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1997 Bumble Bee
1999 Interstate (sold)
2016 Wing
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Joevalk
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« Reply #11 on: September 03, 2015, 03:59:35 AM » |
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I had the same problem. The carbs on the left side developed granules from the dried up fuel. Pulled the carbs and a few fast jets were clogged. Cleaned it up and all was good  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #12 on: September 03, 2015, 08:24:38 AM » |
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I had the same problem. The carbs on the left side developed granules from the dried up fuel. Pulled the carbs and a few fast jets were clogged. Cleaned it up and all was good Hmmm, good to know. This is the first I've heard of this. |
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