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Author Topic: Where the H#!! are the sync screws on '77 750k (k8) carbs???  (Read 1865 times)

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MrHellpop

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Where the H#!! are the sync screws on '77 750k (k8) carbs???
« on: June 03, 2009, 07:18:51 pm »
I read the FAQ on bench syncing carbs, and decided to do mine since I have the carbs off for cleaning... but I cannot for the life of me locate the sync screws on my '77 750k (k8) carbs!

My Clymer manual has an awesome (sarcasm) exploded diagram of the carbs shich does not list any of the part names! That's real neat and helpful! (Who wrote those things? And why are the drawings so terrible???)

Can someone please post a photo detailing the sync screws for these carbs, or direct me to somewhere online that would have such a photo?

I love this website and all the people who help out everyone else... thanks for being here, ladies and gentlemen!

-MrHellpop

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Offline 1timduke

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #1 on: June 03, 2009, 07:22:00 pm »
You'll never find them BWAHAHAHA!!!

I think they're located on the cast manifold that connects the carbs to the head.   At least they are on my bike ;)

-Tim
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MrHellpop

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #2 on: June 03, 2009, 07:24:36 pm »
Quote from: 1timduke on June 03, 2009, 07:22:00 pm
You'll never find them BWAHAHAHA!!!

I think they're located on the cast manifold that connects the carbs to the head.   At least they are on my bike ;)

-Tim

I need a picture!!! Please!!!!!!!!!!!!!!  :)
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Offline Gordon

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #3 on: June 03, 2009, 07:30:31 pm »
Quote from: 1timduke on June 03, 2009, 07:22:00 pm
You'll never find them BWAHAHAHA!!!

I think they're located on the cast manifold that connects the carbs to the head.   At least they are on my bike ;)

-Tim

Those are the vacuum port screws.  I think he's asking about the screws that actually adjust the slide height.  I've never worked on K8 carbs, though, so I can't say for sure where they are on that bike. 
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Offline robe0531

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #4 on: June 03, 2009, 07:35:46 pm »
i can tell you but it will cost u 1,000,000,000
 they are located under the caps on top of carb that are help on by 2 screws
i would take a pic but i am at the fire dept tonight ant cant take a pic
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Offline scunny

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #5 on: June 03, 2009, 07:36:33 pm »
one each under the top caps for 1,3 &4 carb. it's the adjustable screw in #11
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Offline 1timduke

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #6 on: June 03, 2009, 07:38:10 pm »
Quote from: MrHellpop on June 03, 2009, 07:24:36 pm
Quote from: 1timduke on June 03, 2009, 07:22:00 pm
You'll never find them BWAHAHAHA!!!

I think they're located on the cast manifold that connects the carbs to the head.   At least they are on my bike ;)

-Tim

I need a picture!!! Please!!!!!!!!!!!!!!  :)

Ah... I misread.   I didn't know it was a bench sync.   My bad, man, my bad...
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Offline robe0531

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #7 on: June 03, 2009, 07:43:39 pm »
just so you know the number 2 carb is what u set every thing to
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Offline scunny

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #8 on: June 03, 2009, 08:37:01 pm »
isn't that the 3 carb your pointing to, I must have lost my marbles already
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Offline robe0531

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #9 on: June 03, 2009, 08:53:08 pm »
yea it is was just showing the covers u need to take off
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MrHellpop

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #10 on: June 03, 2009, 09:38:36 pm »
Thanks for the info, guys! You have no idea how frustrating it is to have the books/manuals and not be able to get the info you need. Or maybe you do ha ha
Ps- the clymer manual barely ever shows anything specific to the k7s... Bummer!
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Offline TwoTired

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #11 on: June 03, 2009, 10:26:35 pm »
Why don't you use the Honda shop manual that shows the correct items for the bike you have?
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Lloyd... (SOHC4 #11 Original Mail List)
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MrHellpop

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #12 on: June 03, 2009, 11:02:51 pm »
Quote from: TwoTired on June 03, 2009, 10:26:35 pm
Why don't you use the Honda shop manual that shows the correct items for the bike you have?

Because I am not smart enough! But I will from now on...  ;)
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Offline eurban

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #13 on: June 04, 2009, 05:10:19 am »
Download the factory manual for the k8/f3 here:
http://www.mediafire.com/?5ttzdg9yyuz

The procedures are basically identical for the 77.  There is a download info section on this site (I believe in the FAQ section)  You might even find the 77 factory manual although it won't be much different from the 78.
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Offline Old Scrambler

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #14 on: June 04, 2009, 07:28:42 am »
Thanks for asking the question........I am just about ready to start on a '77 F and have only done the earlier models in the past.  I think this board has everything you need to know for a stock bike......and most of what you need to know to build a custom..........If you are a copy-cat!
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MrHellpop

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #15 on: June 04, 2009, 02:46:39 pm »
OK! I downloaded the K7 AND K8 service manuals, and there doesn't seem to be info about a needle that is adjustable by using different clip settings? (I have read about doing this in various carb tuning FAQs and tutorials, but it might just be for K0-K6 carbs?) If not, is this the giant needle attached to the carb #2's float bowl? I can take it apart and look at it to see if it can be adjusted, but I prefer not to take something apart unless I know what it does and why I'm taking it apart  ;)
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Offline TwoTired

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #16 on: June 04, 2009, 03:51:55 pm »
See fig 7-8 Pg 255.

Item #3 is the needle that has different clip positons on the earlier PD carbs.

The EPA was making Honda reduce the adjustability of carbs  as time went on.  If yours doesn't have multiple clip positions, you either use all stock inlet and exhaust  components, find needles from a 77 PD carb, or shim the needle clip to draw the needle up and richen the midrange.

Your call.
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Offline jx25

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Re: Where the H#!! are the sync screws on '77 750k (k8) carbs???
« Reply #17 on: June 04, 2009, 11:03:36 pm »
i would suggest shims, i used them and it was easy to do
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