CV carb identification.
Road Warrior
Joined: Dec 2012
Posts: 1,539
Likes: 692
From: magnolia tx
I don't really like the all rubber type, but if thats the type your using, these are pretty good https://www.xbredylab.com/index.php?...ucts_id=724216
Road Warrior
Joined: Dec 2012
Posts: 1,539
Likes: 692
From: magnolia tx
Thread Starter
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Tourer
Joined: Jul 2019
Posts: 479
Likes: 441
From: Lithgow NSW Australia
G'day Mike.
Ordered one this morning https://*******.com/nkfbhbn9 With the adapter for the CV I like the idea of being able to bolt the old butterfly on if I have to. Now the 2-3 week wait for it all.
Still trying to seal the com fittings. 2nd go today, using a thick 1/8" firm foam with rtv sealant.. If that don't work you'll hear the @#&^@# over there LOL.
Cheers
Ordered one this morning https://*******.com/nkfbhbn9 With the adapter for the CV I like the idea of being able to bolt the old butterfly on if I have to. Now the 2-3 week wait for it all.
Still trying to seal the com fittings. 2nd go today, using a thick 1/8" firm foam with rtv sealant.. If that don't work you'll hear the @#&^@# over there LOL.
Cheers
Road Warrior
Joined: Dec 2012
Posts: 1,539
Likes: 692
From: magnolia tx
I hear you! I also like the idea of being able to switch back to a butterfly set up easily, I like the S&S or Screamin Eagle butterfly intake manifolds because of the way they seal to the head
Thread Starter
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Tourer
Joined: Jul 2019
Posts: 479
Likes: 441
From: Lithgow NSW Australia
G'day greenfish
I tried to send you a PM but your set up doesn't allow it.
Make me an offer. I can't see me ever needing it.
Just to update I installed the 99 and had to use the pilot jet out of the old butterfly carb #52 and she idle like a sabre tooth tiger! Haven't road tested yet (bloody rain) but hope to this week.
Cheers
I tried to send you a PM but your set up doesn't allow it.
Make me an offer. I can't see me ever needing it.
Just to update I installed the 99 and had to use the pilot jet out of the old butterfly carb #52 and she idle like a sabre tooth tiger! Haven't road tested yet (bloody rain) but hope to this week.
Cheers
Stage II
Joined: Dec 2021
Posts: 2
Likes: 0
From: queensland
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Road Warrior
Joined: Dec 2012
Posts: 1,539
Likes: 692
From: magnolia tx
G'day greenfish
I tried to send you a PM but your set up doesn't allow it.
Make me an offer. I can't see me ever needing it.
Just to update I installed the 99 and had to use the pilot jet out of the old butterfly carb #52 and she idle like a sabre tooth tiger! Haven't road tested yet (bloody rain) but hope to this week.
Cheers
I tried to send you a PM but your set up doesn't allow it.
Make me an offer. I can't see me ever needing it.
Just to update I installed the 99 and had to use the pilot jet out of the old butterfly carb #52 and she idle like a sabre tooth tiger! Haven't road tested yet (bloody rain) but hope to this week.
Cheers
Thread Starter
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Tourer
Joined: Jul 2019
Posts: 479
Likes: 441
From: Lithgow NSW Australia
G'day Mike.
That made me go looking and you are correct.
Copied this from Zodiac site: Main and slow jets for the Keihin Butterfly carburetors as used on 1976-1989 Big Twin and 1976-1987 Sportster. Note that low speed jets (also known as pilot jet) for Keihin Butterfly and CV carburetors look very much the same but are NOT interchangeable. Butterfly pilot jets have 0.6mm bore bleed holes, whereas those for CV carbs have 0.8mm bore bleed holes.
It seems to idle OK with the #52 from the butterfly but is a bit rich when checking with the coloutune. I'll order the proper jets for the CV.
Cheers
That made me go looking and you are correct.
Copied this from Zodiac site: Main and slow jets for the Keihin Butterfly carburetors as used on 1976-1989 Big Twin and 1976-1987 Sportster. Note that low speed jets (also known as pilot jet) for Keihin Butterfly and CV carburetors look very much the same but are NOT interchangeable. Butterfly pilot jets have 0.6mm bore bleed holes, whereas those for CV carbs have 0.8mm bore bleed holes.
It seems to idle OK with the #52 from the butterfly but is a bit rich when checking with the coloutune. I'll order the proper jets for the CV.
Cheers