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Author Topic: Will intake boots from a 78 CB750A fit a 78K?  (Read 1170 times)

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Offline 750K8 Kev

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Will intake boots from a 78 CB750A fit a 78K?
« on: January 17, 2012, 03:24:29 PM »
Found a set and need them real bad
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Offline Spanner 1

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #1 on: January 17, 2012, 04:50:07 PM »
No... the 750 A's carbs are 24mm, the 750 K's are 28mm....so too small  :(
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Offline eldar

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #2 on: January 17, 2012, 04:51:42 PM »
Spanner is correct. Oh and only 1 and 3 or is it 2 and 4 are available? Just get 2 of each number and flip 2 of them.
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Offline Gonzowerke

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #3 on: January 17, 2012, 05:22:47 PM »
A lot of people forget that the A is a completely different beast in many ways. The F and K are too, but 90% of their parts are interchangeable. There is a reason the shop manual's last update was for 1977, and not 1978. By that time, the DOHC was in development, and it was more cost effective to have the 1978 models be the same as 1977.
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Offline 750K8 Kev

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #4 on: January 17, 2012, 05:39:04 PM »
Quote from: Spanner 1 on January 17, 2012, 04:50:07 PM
No... the 750 A's carbs are 24mm, the 750 K's are 28mm....so too small  :(
Quote from: eldar on January 17, 2012, 04:51:42 PM
Spanner is correct. Oh and only 1 and 3 or is it 2 and 4 are available? Just get 2 of each number and flip 2 of them.
Thanks guys, that's what I thought.  Exactly which two numbers should I look for?
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Offline Spanner 1

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #5 on: January 17, 2012, 06:05:03 PM »
Let's see... ( a 1 and 2 ) x2  will work...... or
                  ( a 3 and 4 ) x2.  or   
                   ( a 1 and 3 ) x2 or
                    ( a 2 and 4 ) x2...  :)

  But not   ( a 1 and 4 ) x2 or
                   ( a 2 and 3 ) x 2...  :(               
« Last Edit: January 17, 2012, 06:13:32 PM by Spanner 1 »
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If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

Offline 750K8 Kev

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #6 on: January 17, 2012, 06:23:51 PM »
Quote from: Spanner 1 on January 17, 2012, 06:05:03 PM
Let's see... ( a 1 and 2 ) x2  will work...... or
                  ( a 3 and 4 ) x2.  or   
                   ( a 1 and 3 ) x2 or
                    ( a 2 and 4 ) x2...  :)

  But not   ( a 1 and 4 ) x2 or
                   ( a 2 and 3 ) x 2...  :(               
Thanks Spanner!
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Offline Rgconner

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #7 on: January 17, 2012, 07:51:15 PM »
Member 05c50 makes nice replacement ones for a good price.
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Offline 750K8 Kev

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Re: Will intake boots from a 78 CB750A fit a 78K?
« Reply #8 on: January 18, 2012, 08:48:20 PM »
Quote from: Rgconner on January 17, 2012, 07:51:15 PM
Member 05c50 makes nice replacement ones for a good price.
Thanks man, looked in to it.  He said he's working on a new and more dependable compound.
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