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sailer48
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« on: February 15, 2012, 09:54:56 AM » |
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I have to use the choke to start engine all the time and I live in S.west Fl.When I try to increase the rpm the engine shuts off.It does restart but same thing happen again when I turn the throttle.  any ideas would be appreciated. |
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hubcapsc
Member
Posts: 16789
upstate
South Carolina
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« Reply #1 on: February 15, 2012, 10:02:14 AM » |
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something's keeping gas from flowing from the tank to the carbs? mud daubers built nests over your airbox breather holes? -Mike "something like that?  " |
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Momz
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« Reply #2 on: February 15, 2012, 10:03:46 AM » |
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I had a similar problem when my petcock diaphram failed.
Your problem can also be clogged low speed jets.
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 ALWAYS QUESTION AUTHORITY! 97 Valk bobber, 98 Valk Rat Rod, 2K SuperValk, plus several other classic bikes |
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Ricky-D
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« Reply #3 on: February 15, 2012, 10:04:41 AM » |
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Open up the float bowl drain screws one at a time with the purpose to see if there is gas flowing from the tank to each carburetor.
There's more but do this first.
***
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2000_Valkyrie_Interstate
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #4 on: February 15, 2012, 10:37:49 AM » |
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What does it take to get this thing running normal ? Does it just need to warm up a few minutes or does it not ever run correctly ? How long have you had this monster or how long has this been a problem ?
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whitestroke
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« Reply #5 on: February 16, 2012, 06:09:39 PM » |
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How old is gas?
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Minibike
Honda S90
Yamaha YL100
Bultaco 250 Matador
Bultaco 250 Pursang
Yamaha 250 YZ
Triumph 650 Bonni
Honda ATC 200
2 Kids 25 year break.
Suzuki GS 500
2003 VTX 1300S,
1998 Valk standard
2008 Goldwing
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #6 on: February 17, 2012, 07:28:59 AM » |
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Just because you live in Southern FL, what makes you think you don't need to use the choke?
As far as it dieing when you touch the throttle is normal in most of the Valk's. MGM has over 242K on it and has always needed the choke, no matter what state I'm in. Up here in the North (God's country) it is just normal procedure to use the choke.
Let it run on it's own, ya keepa da finners offa da throttle till it warms up some. Then the throttle will work like it was designed to do. Ifa ya worrya abouta sheeta likea data, youa goina toa havea ulcera developea.
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44 Harley ServiCar   |
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Ricky-D
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« Reply #7 on: February 17, 2012, 07:36:45 AM » |
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I have to use the choke to start engine all the time and I live in S.west Fl.When I try to increase the rpm the engine shuts off.It does restart but same thing happen again when I turn the throttle. any ideas would be appreciated. Could be as simple as not employing the choke circuit fully "on"!!!! *** |
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2000_Valkyrie_Interstate
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Earl in Pensacola
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« Reply #8 on: February 17, 2012, 07:32:58 PM » |
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I think that RICKEY-D "hit-it-on-the-head" !!! Make sure you're fully engaging the choke lever!!
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sailer48
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« Reply #9 on: February 22, 2012, 07:35:37 AM » |
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I Know to use the choke all the time to start my Valk, and I know to leave it warm up,but that does not make differences. It still shuts down when I try an turn the throttle. I have checked the air filter for obstructions,I think it is the petcock as suggested my some members,I have ordered a rebuld kit for the petcock.We'll see if that takes care of the problem. Thanks for all the responses.
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ptgb
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« Reply #10 on: February 22, 2012, 09:26:41 AM » |
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I Know to use the choke all the time to start my Valk, and I know to leave it warm up,but that does not make differences. It still shuts down when I try an turn the throttle...
I am not sure you're following. It is pretty common with the choke. Push it till it stops and then PUSH IT MORE... betcha it will move another 3/4 inch or so. Then start it... you will see the difference that 3/4 inch makes. If I am wrong and you are familiar with the choke then disregard the above. |
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 Lower Lakes 1000 - 07/07 & 09/10 * Bun Burner GOLD - 09/10 Lake Superior 1000 - 07/11 * Lake Michigan 1000 - 09/11 * Lake Huron 1000 - 09/11 Saddlesore 2000 - 09/11 * Ohio 1000 - 07/13 |
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hubcapsc
Member
Posts: 16789
upstate
South Carolina
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« Reply #11 on: February 22, 2012, 10:00:57 AM » |
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Push it till it stops and then PUSH IT MORE... Like, don't break it off or anything, but yeah... what he said  The choke cable leads from the bars down to the actual mechanism near the carb tops. While you're pushing on the choke lever, watch the mechanism move... you can easily see when the cable pulls the slider across the carb tops, as the slider (#20) moves, I guess it twiddles the enricher on each individual carburetor.  -Mike
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« Last Edit: February 23, 2012, 07:11:46 AM by hubcapsc »
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Robert
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« Reply #12 on: February 22, 2012, 06:02:00 PM » |
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In S W Fla if you have to use the choke to start and it takes awhile to warm up then I would say you have carb problems. Try to adjust the mixture screws under the carbs to 2 1/2 turns if that doesn't help then you may need to take the carbs apart or run some Techoline through them. I dont use the choke on my bike but I have clean carbs too. Its been in the 80s recently here and you really shouldn't need the choke and if you do, it should be to start then immediately off. I really dont think the petcock rebuild is going to do the trick since the carbs already have enough gas in them to start and run the bike for a few minutes in the first place even if the petcock didnt open. The test is also easy enough to determine that the petcock is working. Disconnect the fuel hose that goes from the petcock to the carbs also disconnect the vacuum line and apply 5 inches of vacuum to the vacuum line and fuel should start to flow out of the petcock quite rapidly and freely. If not then that is a problem also.
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« Last Edit: February 22, 2012, 06:04:17 PM by Robert »
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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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al v
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« Reply #13 on: February 22, 2012, 07:22:03 PM » |
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At one time I caused a similar problem on my Magna by modifying the air box. The bike would start and run with the choke on but it would instantly stall if you touched the gas. Found out that making the air box less restrictive would not work without rejetting.
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sailer48
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« Reply #14 on: February 23, 2012, 06:06:02 AM » |
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I replaced the air filter last year with a K&N air filter.I don't think this has anything to do with it,the problem started a couple of months ago.I have owed this bike from new.It only has 16000 miles on it.
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