Black Plastic Carb Inlet Nipple - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 54 (permalink) Old 09-20-2011, 10:42 PM Thread Starter
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Black Plastic Carb Inlet Nipple

I was wondereing if anyone has fuel leaks where the fuel line hooks onto the little black plastic inlets on the twin carbs? I have one that drips fuel and i need to know if these are replaceable or do you have to retap for new threads and install a new fitting.
Thanks For All The Wonderful Help Here!
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post #2 of 54 (permalink) Old 09-22-2011, 01:35 AM
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They are replaceable with brass ones from a Harley. I'm not sure of the diameter, but someone will chime in shortly with the correct size. If you do a search on the forum, there are some posts describing how to replace them.
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post #3 of 54 (permalink) Old 09-22-2011, 02:33 AM Thread Starter
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Thanks RakerBill !

I guess its time to head to the ACE harwdware & drill and tap the brass fittings.... ugh !
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post #4 of 54 (permalink) Old 09-23-2011, 01:54 AM
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Great pictures man, thanks for the info.

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post #5 of 54 (permalink) Old 09-23-2011, 02:02 AM
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That is a hell of an idea. There was a post on here concerning the inlets, and some from a Harley dealer was solid brass and would slide in. I don't remember which type of carb it was from.
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post #6 of 54 (permalink) Old 09-23-2011, 07:07 PM
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Half the fitting is already brass.
Why the H3LL didn`t Ma Kaw make the whole fitting from brass in the first place, instead of bastardizing it with the plastic nipple?

No need to answer, I already know the answer.

BEAN COUNTERS.
Somebody in a suit figured they cound save a few cents on every unit made, and it adds up to a few hundred $$ on the company financial statement at year end!!

Oh yeah, thanks for the pictures and the idea OldHippie. This is just the type of repair I might try if the need arises.

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Last edited by OlHossCanada; 09-23-2011 at 07:12 PM.
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post #7 of 54 (permalink) Old 09-23-2011, 07:53 PM Thread Starter
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Your So Right !

Yeppers The Bean Counters At Work For Sure. But, those drips & more drips of gas from the inlets finally got to me,, had to do something about it.
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post #8 of 54 (permalink) Old 10-15-2011, 11:17 AM
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Here ya go...

Here ya go Hip....

http://www.cv-performance.com/Carbur...let_Elbow.html

The fittings btw are pressed, so new ones have to be pressed back in again (bench vise or Jorgensen clamp would be fine). My one carb was already done the "hardware store" way...personally, I dont like it. The CV fitting is specifically designed for the Keihin, most harley dealers have em, and they also have a stock (just like ours) for about $5 less. But when the snow here gets over 2 feet this winter, gonna pull my carbs for a rebuild and add the CV to the remaining fitting.



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post #9 of 54 (permalink) Old 10-15-2011, 11:38 AM Thread Starter
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Hey Wolfie thats great ! Thanks for passing on the good info, ive bookmarked it !! Fellow Vulcan riders allways comes up with the "Best". Looks like it might be a close tolerance fit item. I bet a person could drop those new brass fittings into some dry ice for a while then they would just slip into the carbs with no problems, i.e. no press needed just a small tap would do! Learned that widdle trick installing valve seats into aircraft engine jugs (cylinder heads). Im sure your post will help out some other fellow ridders to !!!


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post #10 of 54 (permalink) Old 10-15-2011, 01:30 PM
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Quote:
Originally Posted by OldHipWesTex View Post
Hey Wolfie thats great ! Thanks for passing on the good info, ive bookmarked it !! Fellow Vulcan riders allways comes up with the "Best". Looks like it might be a close tolerance fit item. I bet a person could drop those new brass fittings into some dry ice for a while then they would just slip into the carbs with no problems, i.e. no press needed just a small tap would do! Learned that widdle trick installing valve seats into aircraft engine jugs (cylinder heads). Im sure your post will help out some other fellow ridders to !!!
If you don`t have easy access to dry ice, try hitting it with a few little shots of liquid propane from your 20 lb cylinder on the BBQ.
The tank feeds vaporized propane when standing upright, but you get liquid if you turn it upside down.
A hose without a regulator is needed to direct the liquid stream.
Propane vaporizes at minus 44*F, so don`t let it hit your skin!

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/showthread.php?t=9127
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