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Valkyrie Riders Cruiser Club > General > 1500 Tech Board > Different size venturi on our carbs???
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Author Topic: Different size venturi on our carbs???  (Read 1195 times)
John Schmidt
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Posts: 15260


a/k/a Stuffy. '99 I/S Valk Roadsmith Trike

De Pere, WI (Green Bay)
« on: November 30, 2011, 07:03:40 PM »
I was just browsing ebay and noticed a number of postings for carb sets that had different sizes listed, ranging from 29mm to 31mm. What's that all about, I thought they were all pretty much the same size. The associated listing ranged from '98 to 2000 model year. Just curious, anybody have any input on that?
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98valk
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Posts: 13563


South Jersey
« Reply #1 on: December 01, 2011, 05:44:50 AM »
tech manual states all carbs, all yrs, all models use the same size carbs. 28mm (1.1 in)
the stock carbs are correctly sized per intake valve size and the intended use of the bike. racing all of the time larger carbs would help.
maybe they can't measure just like, Only 55% of Americans know that the sun is a star.  Cry
« Last Edit: December 01, 2011, 04:39:25 PM by CA ExhaustCoatings » Logged
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
Thunderbolt
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Posts: 3726


Worthington Springs FL.
« Reply #2 on: December 01, 2011, 05:32:26 PM »
97's had VPKOA's and later has VPKOJ carbs.  Venturi size is the same.  No help here, just looking at the manual for answers.
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98valk
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Posts: 13563


South Jersey
« Reply #3 on: December 01, 2011, 06:09:27 PM »
Quote from: Thunderbolt on December 01, 2011, 05:32:26 PM
97's had VPKOA's and later has VPKOJ carbs.  Venturi size is the same.  No help here, just looking at the manual for answers.

just model # changes, same for the needles. manufacturers do it all of the time.
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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
Farther
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Posts: 1680


Quimper Peninsula, WA
« Reply #4 on: December 02, 2011, 10:04:05 PM »
Quote from: CA ExhaustCoatings on December 01, 2011, 05:44:50 AM
Only 55% of Americans know that the sun is a star.  Cry
And all this time I thought the stars were suns only farther away.  Thanks for the update. Wink
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Thanks,
~Farther
Tundra
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Posts: 3882


2014 Valkyrie 1800

Seminole, Florida
« Reply #5 on: December 05, 2011, 03:00:53 AM »
John, Who's bike are you working on? Surely not yours? You and Grumpy have the cleanest, smoothest running Valkyries alive Shocked
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If you can't be a good example: be a WARNING!!
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