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JCS
Samba Member
Joined: October 29, 2004
Posts: 200
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 Posted: Sun Jul 31, 2016 6:28 pm Post subject: Vacuum Port On Webers |
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| I have a 500 Spyder with a 2007 cc engine and it has dual Weber IDF carbs. I am wanting to use a 4 tube manometer to tune the carbs but the American IDF's do not have ports for slipping rubber hoses over for the vacuum test. My understanding is the European IDF's have such a port with a twist tube for opening the port. I see there are blank screws at the base of each barrel right next to the air fuel mixture screw. Is this where such tubes can be inserted and where can I find them for my carb's? |
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bugguy1967
Samba Member
Joined: January 16, 2008
Posts: 4343
Location: Los Angeles, CA 90016
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| Posted: Sun Jul 31, 2016 6:52 pm Post subject: Re: Vacuum Port On Webers |
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| https://www.amazon.com/uxcell®-Brushless-Electric-Nipple-Outlet/dp/B00OK8Y5NQ/ref=sr_1_3?ie=UTF8&qid=1470016271&sr=8-3&keywords=M4+water+outlet |
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20383
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Sun Jul 31, 2016 7:56 pm Post subject: Re: Vacuum Port On Webers |
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There are ports on carbs, just no hose fittings.....People have gotten 5mm (or maybe its 4mm) nipples used for model marine rc boat motors successfuly.....
GO to amazon.com and use search string "Brushless-Electric-Nipple-Outlet'..
Dale
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earthquake
Samba Member
Joined: January 10, 2008
Posts: 3984
Location: SANDY VALLEY, NEVADA
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| Posted: Sun Jul 31, 2016 9:56 pm Post subject: Re: Vacuum Port On Webers |
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Here's a picture of the vacuums ports on the 36 and 40mm Weber's used on Fiat and Alfas, they also have there idle jets on top and a 5th progression hole.
Casey
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