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Author Topic: O rings sizing for 99 and 03 Valkyrie Carb Air Cut Valve  (Read 2217 times)
Racernick
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Posts: 24


« on: August 09, 2022, 02:53:59 PM »

Hey all im new to these Valkaries. I been working on the 2 of my father in law. Doing complete carb rebuilds and getting very familiar with them as i have taken. The carbs off one of the bikes 4 or 5 times for several different human errors. Well i got tires of working on the 03 so I switched them over to working on the 99. Found that the fitting between the carbs is leaking so needs new o rings. With a search on here i found those o rings sizes being N1.30 x 008, and N1.78 x 007.94, both 70 durometer. Unfortunately going thur the o rings store as said you cant get the N1.30 x 008 unless you wanna buy 1800 of them right now. But looks like www.oringsandmore.com will have both for the fuel and vapor tubes. What im looking for is the correct sizing o rings for the air cut valve. There are two on the brass tube ( also called a jet ) which are the same size then the other is on the plastic of the valve itself. The part number to the honda kit is Honda Part # 16010-HM7-670. Which i could just buy kits at 16 bucks a pop times 12 and move on but 200 bucks vs maybe 5 bucks from a o ring shop sounds alot better to me. With doing some research apparently this kit is also used on a 98 Honda VTR1000 Superhawk. With doing some research found that they will sell you one o ring from the kit Honda Part #16075-GHB-640 which in the description it says its a 1.3 x 4.3. So i turn to you all to try to get some info on the sizing of what is the correct o ring size for the air cut valve ?

I have messaged redeye already to ask no reply yet and also messaged partzilla which they said they didnt have more info. But thank you in advance for your help
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rug_burn
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Posts: 320


Brea, CA


« Reply #1 on: August 09, 2022, 03:15:33 PM »

Not sure, but I may be the one who posted that o-ring info...   and I found better yet was to use these  -
They fit good and tight, so give them a little silicone lube when installing

Fuel rail:   1.9mm x 7.8mm  Viton
Vapor rail:   1.5mm x 6.0 mm  Viton

For the Idle screw and the air valve  , 5mm od, 3mm ID, (1mm cross section)  Viton  worked good
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...insert hip saying here..
Racernick
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Posts: 24


« Reply #2 on: August 09, 2022, 09:57:42 PM »

On the cut valve there are 2 different sizes or are you using same size for all 3 ? When you say idle screw what are you referring too ?  I was trying to post the photo from partzilla that had the break down but if you can tel me what item off there your reffing too

https://www.partzilla.com/catalog/honda/motorcycle/1999/gl1500c-a-valkyrie/carburetor-components

Thanks for the information ill order those sizes instead.
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Racernick
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Posts: 24


« Reply #3 on: August 10, 2022, 05:56:38 AM »

O rings im looking at

https://www.oringsandmore.com/fkm-o-ring-7-8-x-1-9mm-jis-p8-minimum-10-pcs/

https://www.oringsandmore.com/fkm-o-ring-6-x-1-5mm-minimum-10-pcs/

https://www.oringsandmore.com/fkm-o-ring-3-x-1mm-minimum-25-pcs/
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hubcapsc
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Posts: 16780


upstate

South Carolina


« Reply #4 on: August 10, 2022, 06:20:19 AM »


Is there a reason (cost?) you don't want to just order OEM orings from partzilla?

-Mike
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Racernick
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Posts: 24


« Reply #5 on: August 10, 2022, 10:50:05 AM »

Ya pretty much cost the oem is 15 dollars per cut valve plus what ever the cost of the fuel rail and vapor rails would be your looking at 300 bucks if not more to go OEM vs 20 or 30 bucks from a o ring place. Also the aftermarket viton is better then oem against our new fuel
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Gregory Scott 16248
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Posts: 77


Pittsburgh, PA. Cranberry TWP.


« Reply #6 on: August 10, 2022, 11:18:28 AM »

You can try https://www.partsfish.com they have lots of parts and ship quick.
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VRCC#16248
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Racernick
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Posts: 24


« Reply #7 on: August 10, 2022, 11:24:50 AM »

Thanks for the new site to browse but still going to go aftermarket. Just trying to make sure the correct sizing before i make my order above. There is no factory info i have found that why i turn to all you who have experience same problems and know whats best.
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RonW
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Posts: 1867

Newport Beach


« Reply #8 on: August 12, 2022, 04:52:11 AM »

Another option is to start from scratch .....

https://www.youtube.com/watch?v=85s1vZX0DUQ
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2000 Valkyrie Tourer
Racernick
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Posts: 24


« Reply #9 on: August 12, 2022, 11:34:13 PM »

I would but im so invested now in trying to make them both run. Im not going to let it beat me. Ordered all the o rings needed. As i type this i just finished ultra sonic the last 3 carbs and rebuilt just need the o rings to finish carb rack assembly and mount back on bike and see if she will run.
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Racernick
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« Reply #10 on: August 12, 2022, 11:37:43 PM »

Looks like that bike already sold as well
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RonW
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Posts: 1867

Newport Beach


« Reply #11 on: August 13, 2022, 03:25:49 PM »

The ad was over a month old anyways. Bike probably sold in a week.
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2000 Valkyrie Tourer
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