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HANSIL59
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« on: March 04, 2011, 09:09:44 AM » |
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I have a (new to me) 1997 Valkyrie standard. Has 14000 miles on it and had been sitting for quite some time. Visually perfect. But, I am rebuilding the carbs among other things and am rejetting, etc. Question is....There are two posts inside the bowl, aparently pressed into position, one has a hole in it and the other has a tapered end. Neither are removeable. What are they? should they be removed somehow and cleaned or what?
Thanks in advance.
John
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #1 on: March 04, 2011, 01:22:48 PM » |
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Leave them alone, just blow air through them or run a VERY VERY fine guitar string through the one.
Ya don't want to muck up the hole size.
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44 Harley ServiCar   |
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98valk
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« Reply #2 on: March 04, 2011, 07:09:17 PM » |
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There are two posts inside the bowl, aparently pressed into position, one has a hole in it and the other has a tapered end. the one with the hole is the bowl vent tube. if u are describing the tapered end tube which is located outside of the bowl area, that is the idle mixture screw, with the brass "D" shape end. |
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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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wizard -vrccds#125
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« Reply #3 on: March 04, 2011, 08:00:08 PM » |
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Most 97 have a slot not a "D" as 98 and up !  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #4 on: March 05, 2011, 06:52:55 AM » |
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The 97s are slotted ?? I didn't know that, learn something new every day[mine is an early 98].. I had heard the Euro bikes were like that.. Whenever I remove them I cut slots in them and never-seize them as well..
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98valk
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« Reply #5 on: March 05, 2011, 07:04:43 AM » |
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Most 97 have a slot not a "D" as 98 and up ! somebody at one time slotted them. per the tech manual all yr usa valkyries use the D-shaped screws. honda started using them in all of their carbs, yrs before the valkyrie was made. |
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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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HANSIL59
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« Reply #6 on: March 05, 2011, 11:16:16 AM » |
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Where does the vent go? I have 5 that will pass air, the one that wont. If it is pressed in, I don't want to force it out or force something through it if it will damage something else. I have tried forced air, letting it soak in carb cleaner, etc. Just don;'t want to mess something up.
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98valk
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« Reply #7 on: March 05, 2011, 06:16:03 PM » |
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Where does the vent go? I have 5 that will pass air, the one that wont. If it is pressed in, I don't want to force it out or force something through it if it will damage something else. I have tried forced air, letting it soak in carb cleaner, etc. Just don;'t want to mess something up.
there are fittings btwn the rear and middle carbs near the top of them that have vent hoses to atmosphere. the two hoses from each bank are suppose to be routed to the two holes in the rear metal support carb bracket. |
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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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HANSIL59
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« Reply #8 on: March 05, 2011, 06:40:43 PM » |
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Ok. I'm not being clear. I have taken the bowls off. Inside the bowl chamber where the floats usually are, there are two brass posts that are pressed into the carb body. They can't be unscrewed and removed. One has a hole in it and the other has a tapered end without a hole. On 5 of the carbs, I can blow into the hole and move air out. I can't find where its coming out but I can hear it being released. One is apparently clogged. Before I jam a wire into it and try to force clean it, I wondered if anyone knew what it was. It isnt jetted and can not be removed. It is inside the carb float area where the other jets are, but it cant be removed. Or if you know where it comes out, I can try to clean it from the other end. Thanks.
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98valk
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« Reply #9 on: March 05, 2011, 08:33:13 PM » |
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Ok. I'm not being clear. I have taken the bowls off. Inside the bowl chamber where the floats usually are, there are two brass posts that are pressed into the carb body. They can't be unscrewed and removed. One has a hole in it and the other has a tapered end without a hole. On 5 of the carbs, I can blow into the hole and move air out. I can't find where its coming out but I can hear it being released. One is apparently clogged. Before I jam a wire into it and try to force clean it, I wondered if anyone knew what it was. It isnt jetted and can not be removed. It is inside the carb float area where the other jets are, but it cant be removed. Or if you know where it comes out, I can try to clean it from the other end. Thanks.
that is the bowl needle and seat. this is were the fuel enters the bowl. if u scratch the seat the carb is ruined unless u find a shop that can replace the seat. do u have the tech manual?, shows in detail what u are asking. there are many sites with pics of CV carbs being rebuilt. the valkyrie carbs are CV carbs made by keihin. both ends of the fuel path are open on the center carbs. hope this helps |
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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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HANSIL59
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« Reply #10 on: March 06, 2011, 03:13:24 AM » |
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Not the bowl needle and seat. It is a longer brass post with a very small hole. a basketball air needle will almost fit into it(thought about trying that to pump air into it to force clean it). the shop manual doesnt label it. Thanks.
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HANSIL59
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« Reply #11 on: March 06, 2011, 03:21:25 AM » |
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Page 5-13 in the manual shows it clearly but doesnt label it. It is the post with the hole just above and to the right of the main jet.
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bikerboy1951
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« Reply #12 on: March 06, 2011, 03:46:50 AM » |
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I just had my carbs cleaned by a local mechanic. I asked him the same question. He said that it was for the carb enrichner circuit. He is very knowledgable on carbs, so I am quite sure that he is correct. I never asked him about the tapered post with no hole in it.
Brad
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Ricky-D
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« Reply #13 on: March 06, 2011, 07:50:29 AM » |
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Regarding the "post" that you can move air through.
You should with careful examination determine where the other end of the hole that the air is escaping.
It sounds like it is a float bowl vent to allow normalizing air pressure within and without.
If five of the carburetors allow air to pass through the "post" then it would naturally be normal for air to pass through the clogged one.
You can with certainty clear the obstruction to allow the sixth carburetor to function as the five.
There is no metering function with anything that is pressed into the float bowl.
All metering devices are removable and replaceable as is normal for all carburetors.
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2000_Valkyrie_Interstate
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