Author Topic: '78 750K carb boots  (Read 5247 times)

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Offline Coyote13

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'78 750K carb boots
« on: September 03, 2010, 02:45:49 PM »
In a bit of a bind...does anybody know where I can get the hotside (carb=>motor) carb boots for a '78 750K?  TIA



Just looked at the partsfiche..I guess they're technically carb insulators if that helps.
« Last Edit: September 03, 2010, 02:48:31 PM by CoyoteUSP »
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline Skunk Stripe

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Re: '78 750K carb boots
« Reply #1 on: September 03, 2010, 02:50:21 PM »
I know bikebandit.com does and davidsilverspares.

Offline Coyote13

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Re: '78 750K carb boots
« Reply #2 on: September 03, 2010, 02:58:17 PM »
Need a full set, looks like bikebandit and DS only have them for cyl 1 and 3. Thanks though. Anybody else?
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

bollingball

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Re: '78 750K carb boots
« Reply #3 on: September 03, 2010, 03:05:06 PM »
Looks like 1&3 is it for now will have to soak 2&4 750K8. Dealer has 1&3 cost the same after S&H.

Offline Coyote13

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Re: '78 750K carb boots
« Reply #4 on: September 03, 2010, 03:07:31 PM »
Well eff me. I know there are cross referencers out there but I'm not any good at usin 'em, does anybody know if other models will fit?

The part numbers for the four I need are:

16211405000
16212405000
16213405000
16214405000

Thanks guys
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline gnarlycharlie4u

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Re: '78 750K carb boots
« Reply #5 on: September 03, 2010, 03:07:40 PM »
Looks like Dynoman and z1 both say that Honda has discontinued them.
I've been searching myself and have yet to uncover anything.

the early boots will only fit earlier carbs. the 77-78 are 2-3mm larger on the carb side.

Offline Coyote13

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Re: '78 750K carb boots
« Reply #6 on: September 03, 2010, 03:10:21 PM »



So WTF should I do?
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline gnarlycharlie4u

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Re: '78 750K carb boots
« Reply #7 on: September 03, 2010, 03:14:10 PM »
my thoughts exactly...

Offline Coyote13

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Re: '78 750K carb boots
« Reply #8 on: September 03, 2010, 03:21:11 PM »
It's been brought up that you can use two #1's and two #3's but that it doesn't work just right (it works, not perfect). So why the $%&@ would Honda discontinue parts that are prone to failure at this point in time that can't be replaced with anything else???
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline gnarlycharlie4u

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Re: '78 750K carb boots
« Reply #9 on: September 03, 2010, 03:29:44 PM »
i was wondering the same thing. i can't even find the later carb boots on ebay anymore...

what's worse, Dynoman says that the early carb boots won't fit my keihin cr's so i'm really up the creek at the moment.

Offline TwoTired

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Re: '78 750K carb boots
« Reply #10 on: September 03, 2010, 03:43:50 PM »
Honda discontinues parts based on profitabilty of their production.

It costs $X to do a production run of the parts.  If they can't sell enough to cover costs and make a profit, they don't make the parts.

Those of you who don't order parts from Honda are just feeding the obsolesence of the parts.  Why should they make parts if there isn't enough demand/sales?  Would you?

Cheers,
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

bollingball

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Re: '78 750K carb boots
« Reply #11 on: September 03, 2010, 04:30:23 PM »
Then why do they still make or sell 1&3? Do they wear out faster?

Offline gnarlycharlie4u

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Re: '78 750K carb boots
« Reply #12 on: September 03, 2010, 04:31:05 PM »
hey don't point your finger at me friend. I never needed them till now, haha.

bollingball

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Re: '78 750K carb boots
« Reply #13 on: September 03, 2010, 04:33:22 PM »
I will make some let you know what I come up with!

Offline Coyote13

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Re: '78 750K carb boots
« Reply #14 on: September 03, 2010, 04:55:19 PM »
hey don't point your finger at me friend. I never needed them till now, haha.

Quoted for truth and posterity. Twotired, I think that was a little harsh. No one else makes them BUT Honda, so I really don't know wtf you're trying to say.

I understand the profit vs. production argument, but why are only two discontinued and two still available? Just doesn't make sense.
« Last Edit: September 03, 2010, 05:00:10 PM by CoyoteUSP »
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline cookindaddy

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Re: '78 750K carb boots
« Reply #15 on: September 03, 2010, 06:29:18 PM »
I am pretty sure that the two still offered by Honda are mirror images of the two that are no longer made so you don't need the other two. Other than the numbers being wrong and on the wrong side, the 1 should work as a 4 and the 2 should work as a 3.
CoyoteUSP said that "it does not work just right (it works, not perfect)". Could you explain what the problem is that you've heard of or that you experienced?
There are other routes also, like the wintergreen/xylene treatment of old boots that has worked great for me and for many others. Have you tried this CoyoteUSP? It works. Perhaps your boots are damaged or cracked - you didn't say.
A member here offers polyurethane castings of the parts. I do not immediately have a link, but I bought some from him to try and they were very nice, all four parts with the corresponding numbers at the top, made from a modern material that does not harden with age or heat.

 
George with a black 78 CB750K (in Lion's Head, Ontario, Canada)

Offline Coyote13

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Re: '78 750K carb boots
« Reply #16 on: September 03, 2010, 06:37:31 PM »
Cookin Daddy check post #4... and if you could find that link I (and I'm sure many others) would GREATLY appreciate it

http://forums.sohc4.net/index.php?topic=61051.0


And yes, my boots are beyond repair
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline TwoTired

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Re: '78 750K carb boots
« Reply #17 on: September 03, 2010, 06:38:11 PM »
hey don't point your finger at me friend. I never needed them till now, haha.

Quoted for truth and posterity. Twotired, I think that was a little harsh. No one else makes them BUT Honda, so I really don't know wtf you're trying to say.

I understand the profit vs. production argument, but why are only two discontinued and two still available? Just doesn't make sense.

No one said they made the same amount of each part.  Or, that everyone ordered complete sets of boots.  Or that a production run of a certain part was the same as other like parts.
Further, if you have X amount of raw material, and your molding machine screws up/breaks down during a portion of the molding run, your total amount of acceptable parts is not as great.  Do you still sell the parts that did pop out of the mold and meet quality requirements, even though there were fewer than desired?
And lastly, molds do wear out and stop producing parts that meet requirements.  Do you invest in another $75,000-$150,000 tool that only works in a 30 year old (or more) molding machine?  Or, simply say enough is enough?

If your local grocery store is out of 2% milk, does that mean they run out of all milk products at the same time?

David Silver Spares has boots made for the CB550 and they aren't made by Honda.  The demand was high enough that profit could be made by a third party.

There's a lot of whining on this forum about how expensive Honda parts are for their $100 junker they are trying to resurrect for free.  These are often the same ones who shun the Honda parts in favor of some cheaper aftermarket parts.  And then, further whine about how they can't find parts for a bike that has been out of production for 30 years.  Maybe you aren't one of those.

But, try getting an OEM part for a 30 year old chevy or ford or nearly any vehicle 30 years old.

Fact is, parts availability or lack thereof makes a lot of sense.  It may be inconvenient for you, but it makes perfect economic sense.  At one time, you could get an entire replacement engine for the Honda.  You still expect that today?

Again, whoever makes these parts for Honda, has the molds to make them.  Installing the molds in a machine, buying the raw material in a quantity, for a production run of say 1000 costs money.  They don't deserve a return on their investment?

On the other hand, if you march in to Honda a announce you are willing to prepay for a couple of thousand boots, I bet they wouldn't be discontinued anymore.  But, there will likely still be a month or three lead time before you get them.

The point I was making is that parts for the old bikes get discontinued because people stop buying them or demanding them.
If you actually look into what it takes to make them profitably, you won't be surprised why they are hard to get without much demand for them.  I'm pretty sure you wouldn't make them if you felt no one would pay you to do so.

Sorry, they are hard to get (really).  But, it does make perfect sense.

Cheers,



Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline Gaucho

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Re: '78 750K carb boots
« Reply #18 on: September 03, 2010, 06:43:50 PM »

Offline tmac

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Re: '78 750K carb boots
« Reply #19 on: September 04, 2010, 03:11:57 AM »
Bought a set for my 78 from this guy. They work great!

Offline cookindaddy

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Re: '78 750K carb boots
« Reply #20 on: September 04, 2010, 03:54:55 AM »
Gaucho posted the link to the website of the guy I bought my repro carb boots for my 78K 750. His name is Paul Gabor as listed on the web page and his email is there. I don't see the 78K boots in his products but he definitely made some for me and they were perfect. Very reasonable cost and very quick delivery also. I don't know his member name here and can't find his posting that made me order the boots from him. He definitely needs a higher visibility here.

Paul, are you listening - your carb boots are great and people here need them!
George with a black 78 CB750K (in Lion's Head, Ontario, Canada)

Offline KB02

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Re: '78 750K carb boots
« Reply #21 on: September 04, 2010, 04:41:27 AM »
I bought two 1's and two 3's from Honda for my K8 and they work just fine flipped over. No problems. Case closed.
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Offline Coyote13

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Re: '78 750K carb boots
« Reply #22 on: September 04, 2010, 10:48:38 AM »
Thank you so much for the link, that is VERY helpful, and I'm sure not just to me. TwoTired, no one said you were wrong, and no one was complaining about prices or lack of aftermarket on these parts, simply frustrated that they are unavailable. Your point makes complete sense, don't get me wrong, I personally just thought you came off as a bit harsh to some guys (including myself) that asked a simple question.
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

bollingball

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Re: '78 750K carb boots
« Reply #23 on: September 04, 2010, 11:28:44 AM »
Maybe I missed something. I didn't read anything harsh in TT's statement just cold hard facts. The guy's at my Honda shop have to eat also. I would rather help feed them than some outfit over seas when ever I can. Even if it cost a little more.

Offline Coyote13

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Re: '78 750K carb boots
« Reply #24 on: September 04, 2010, 12:14:26 PM »
I'm  not sure where cost came into play on this? I was under the impression that I was only able to get these boots FROM HONDA, and I don't think anything was ever mentioned about how much they cost? Just tryin to find a part guys, shouldn't really be some big fuss over it I don't think
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline TwoTired

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Re: '78 750K carb boots
« Reply #25 on: September 04, 2010, 02:08:45 PM »
Thank you so much for the link, that is VERY helpful, and I'm sure not just to me. TwoTired, no one said you were wrong, and no one was complaining about prices or lack of aftermarket on these parts, simply frustrated that they are unavailable. Your point makes complete sense, don't get me wrong, I personally just thought you came off as a bit harsh to some guys (including myself) that asked a simple question.

OK . That's fine.  I'll make it a point not to respond to any more of your posts and questions, lest you find the information I provide offensive.

Good luck!
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

bollingball

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Re: '78 750K carb boots
« Reply #26 on: September 04, 2010, 03:14:53 PM »
I wasn't referring to you just my my self the parts guy at my shop even told me to try Gabor.you don't find help like to much anymore. Have you looked at the Gabor site yet I Emailed him today for price and availability but no responce yet holiday and all. good luck

Offline Coyote13

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Re: '78 750K carb boots
« Reply #27 on: September 05, 2010, 11:57:03 AM »
Certainly did not mean to offend anyone or run anyone off, my sincerest apologies if that is the case (lookin at you TT). Thank you all for your replies, you've been extremely helpful.
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline martin99

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Re: '78 750K carb boots
« Reply #28 on: September 05, 2010, 03:17:48 PM »
I had exactly this same problem a while ago. I went with two #1 and two #3, they are certainly not a mirror image and were a pig to get on. When I next removed the carbs, after a couple hundred miles or so, they had settled in and were a breeze to put back on. It's worth remembering, if you're running pods, that the F2/F3 ones will also do the job but you can't interchange F2/F3 ones with K7/K8 ones as the K7/K8 ones are shorter. The F2/F3 ones are only available in #1 and #3 too  :)
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