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Author Topic: I cannot find earl 750 carb top gaskets anywhere!  (Read 1086 times)

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Offline slyguy

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I cannot find earl 750 carb top gaskets anywhere!
« on: July 21, 2025, 01:37:05 PM »
It’s like I’m in the twilight zone?? Early 1970 1-4 cable- “top gaskets” I thought I had them with Honda-16171-275-004 but the center hole is too small!?
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Offline MauiK3

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #1 on: July 21, 2025, 02:13:07 PM »
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Offline Don R

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #2 on: July 21, 2025, 02:48:10 PM »
 I made a die from a piece of sharpened tubing to punch out the big hole over the small hole.
 I might be in the twilight zone myself, but out of 4 sets, I never found early carbs that had any top gaskets in them until I put them in myself, including a 7,000 mile sandcast.
 Be very careful with the threads when you put the tops back on, the threads are fine and the metal is soft and the spring wants to hold the top plate off center. The gasket uses up some of the thread area.
« Last Edit: July 21, 2025, 02:54:27 PM by Don R »
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Offline slyguy

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #3 on: July 21, 2025, 02:53:01 PM »
Yes Don, that’s what we are doing next :) The link posted won’t work, the hole is way too small.
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Offline BenelliSEI

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #4 on: July 21, 2025, 03:18:46 PM »
Message JamesH on this forum. He sells perfect ones he has made.also sells gorgeous replica carb clamps.
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Offline Pbeattie89

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #5 on: July 21, 2025, 05:33:23 PM »
4into1 has them but only as a kit.
 https://4into1.com/carburetor-repair-kits-complete-set-honda-cb750k-1969-1971/

Sent from my SM-G991W using Tapatalk

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Offline CycleRanger

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #6 on: July 21, 2025, 06:07:57 PM »
CMSNL has these.
https://www.cmsnl.com/honda-cb750k0-four-1969-usa_model20233/washer-top_16110300004/

Also Honda still sells that packing kit.
16010-300-014
« Last Edit: July 21, 2025, 06:10:15 PM by CycleRanger »
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Offline slyguy

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #7 on: July 21, 2025, 07:34:00 PM »
Quote from: BenelliSEI on July 21, 2025, 03:18:46 PM
Message JamesH on this forum. He sells perfect ones he has made.also sells gorgeous replica carb clamps.
Thanks I’ll check it out👍


:)
Quote from: Pbeattie89 on July 21, 2025, 05:33:23 PM
4into1 has them but only as a kit.
 https://4into1.com/carburetor-repair-kits-complete-set-honda-cb750k-1969-1971/

Sent from my SM-G991W using Tapatalk
yea that looks right in the pic, I’ll have to measure the caps for minimum hole size & then call them if possible.
« Last Edit: July 21, 2025, 07:38:12 PM by slyguy »
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Online newday777

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #8 on: July 21, 2025, 08:14:04 PM »
Quote from: slyguy on July 21, 2025, 07:34:00 PM
Quote from: BenelliSEI on July 21, 2025, 03:18:46 PM
Message JamesH on this forum. He sells perfect ones he has made.also sells gorgeous replica carb clamps.
Thanks I’ll check it out👍


:)
Quote from: Pbeattie89 on July 21, 2025, 05:33:23 PM
4into1 has them but only as a kit.
 https://4into1.com/carburetor-repair-kits-complete-set-honda-cb750k-1969-1971/

Sent from my SM-G991W using Tapatalk
yea that looks right in the pic, I’ll have to measure the caps for minimum hole size & then call them if possible.

4into1 doesn't have a phone listed..
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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 1 K2, 4 K6, 1 K8, 1 F1, 1 F3
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline JamesH

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #9 on: July 22, 2025, 01:36:58 AM »
I still have a few sets of these - made from fibre-reinforced Nitrile and laser cut to an original pattern. Drop me a pm on here.
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Offline JamesH

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #10 on: July 22, 2025, 01:40:19 AM »
Shown here with a set of #28 carb tops



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Offline BenelliSEI

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Re: I cannot find earl 750 carb top gaskets anywhere!
« Reply #11 on: July 22, 2025, 08:30:10 AM »
Quote from: JamesH on July 22, 2025, 01:36:58 AM
I still have a few sets of these - made from fibre-reinforced Nitrile and laser cut to an original pattern. Drop me a pm on here.

I used these (and a set on James’ carb clamps) on my S/C project and they are perfect!
« Last Edit: July 22, 2025, 08:32:31 AM by BenelliSEI »
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