Tillotson carb number 66 sportster

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Nov 1, 2009 | 04:33 PM

hemicoupenut

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Tillotson carb number 66 sportster

All, I am looking for the Tillotson part number for my 66 sportster. I have an HD1C and a HD2D card that I can rebuild. Are either of these correct for 1966?

The harley parts listing calls for a 27162-66. What is the conversion to the Tillotson number?

thank you

Nov 1, 2009 | 05:51 PM

piniongear

Stellar HDF Member

Joined: Feb 2006

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From: Houston Texas

Good luck on finding the conversion number for a Tillotson.
I have never come across such a cross reference myself.

There are much better choices of carbs to hang on a Sportster instead of a Tillotson. But maybe you want to retain the original carb.

All I can tell you is a 1966 had a Model HD carb. I am not sure about the '1C and 2D' business. Probably not a dime's worth of difference between the two.

I may have a few more bits of information regarding the rebuilding and repair of the Model HD carb, if you need it.
pg

Last edited by piniongear; Nov 1, 2009 at 09:28 PM.

Nov 2, 2009 | 12:47 PM

gunnut1

Cruiser

Joined: Oct 2008

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Are there still some parts around for these things? I think they were used until 1970 or so.

Nov 2, 2009 | 01:12 PM

wraplock

Road Captain

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From: New York

I have an old tillotson HD1A in my parts box. It has the adapter block still mounted on it. Missing the accelorator pump and lever and the idle adjustment screw.. Nice shape will need a rebuild as it's been sitting for years! I will let it go any Offers?? wraplock@aol.com

Last edited by wraplock; Nov 2, 2009 at 01:14 PM.

Jan 2, 2010 | 06:17 PM

Electra Glide in Blue

6th Gear

Joined: Feb 2009

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From: Colorado

Quote:

Originally Posted by piniongear

Good luck on finding the conversion number for a Tillotson.
I am not sure about the '1C and 2D' business. Probably not a dime's worth of difference between the two.

Agree on finding any conversion numbers. I have been told the '1' designates Sporty and the '2' is big twin. I have both and can't tell the diff. I don't have a clue what the C and D stand for either, I have a HD2C on my 68 FLH (the stock carb btw), and a HD2D and a HD1B laying around. I do know all three have diff size main jets.

Jan 3, 2010 | 09:18 AM

fdny37

Intermediate

Joined: Aug 2006

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I purchased a NOS in the box Tillitson part number 27162-66c which is listed for all Sportsters '66-'69. There is HD1D 14 stamped on the flange, so I guess that throws a monkey wrench in this whole thing.

Sep 26, 2010 | 08:49 AM

jrjr

Stage I

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Quote:

Originally Posted by piniongear

I may have a few more bits of information regarding the rebuilding and repair of the Model HD carb, if you need it.
pg

Hey,
My friend has been tearing the tilly off his 67 fl and working on it for a few weeks now with no success. He got some rebuild parts for it. He also has a second carb. Upon install the bike runs wide open with the throttle butterfly closed. Throttle has no effect on rpms with either carb. I offered to tear them both apart again and look them over for a second set of eyes. I've done carbs before but not these tillotsons. If you have some information or tricks to do I sure would appreciate it. He wants to keep the original carb since the rest of the bike is bone stock. Any help is welcome!

Thanks