Author Topic: Advice for buying 1977 Honda CB500 Four (in Europe)  (Read 710 times)

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Offline hatmat

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Advice for buying 1977 Honda CB500 Four (in Europe)
« on: November 29, 2025, 08:59:01 AM »
Hi!

I am a new member from Estonia, just got my licence last summer and there is a 77 Honda CB500F with 56000 km on it for sale here and I'm thinking of buying it in spring. This is the only old Honda for sale around here so the selection isn't that great. Thought I'd ask for some advice before buying it.

I haven't contacted the seller yet, since I don't have the money right now anyway (I will in a couple of months) so I only have the images that are in the advertisement which are not very detailed. On the images the bike looks to be in a pretty good condition. https://imgur.com/a/Z7SvgCE

The seller writes in the ad that it's completely in working order, taken care of and visually in perfect condition. That the motor works impeccably. The asking price is set to 5500 € and discounted to 4900 €. Even though last summer it was on sale for 3500 €, but then they raised the price in October I think.

What price is fair for this bike in this region?
What should I look out for when going to see the bike - I know there are probably a lot of posts here with advice on what to look out for while buying an used bike, but I thought I'd ask anyway and also look at the other posts.
What kind of pictures or video to ask for before going to take a look - they are not far away so might be easier to just go there. But I would have to go when it's warmer outside so I can do a test drive as well.

Thanks!


Offline bryanj

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #1 on: November 29, 2025, 09:43:03 AM »
The 77 model is a "european only" odd ball as its a 550 with different barrells.

PD carbs are a nightmare if the bike is stood for any time, even weeks, otherwise cycle parts can be difficult to find az its a 2 yr only model
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Don R

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #2 on: November 29, 2025, 12:08:14 PM »
 Any time I've waited more than a day or two to call on a bike it was gone when I got ready. It is good to know what you want and keep an eye on the ads so you know what the market is for them, then when you are ready to buy, you can choose wisely.
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Offline Deltarider

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #3 on: November 29, 2025, 12:55:41 PM »
It's a CB500K3. BTW, the year is irrelevant. My CB500K2 in the pic below is also a CB500 1977 (registered). All models CB500 Fours are fine bikes. The K3 is not my favourite, because of the carbs. They are OK, as long as you ride regularly. When not, adding a fuel system cleaner to the tank is highly recommended.
Note that the sidepanel is not original, but from a K1.
CB500K2-ED Excel black
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Offline jlh3rd

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #4 on: November 29, 2025, 05:35:11 PM »
for european sales the "year" is irrelevant. That's correct.

FYI - CMS shows that the european exports 500K3 and the 550K3 have a single stay front fender, whereas the bike for sale shows a 2 stay front fender. CMS could be wrong.
In the states, the correct model identification is determined by frame and engine #'s. I don't know how europe does it.
It's your money. What model bike is it actually?

Offline scottly

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #5 on: November 29, 2025, 06:21:19 PM »
The bike looks nice in the pictures. One thing to check when viewing the bike in person is the condition of the chrome; is there rust or pitting? Check the mufflers for any rusted out areas.
As far as price in your region I have no idea, but in the US 3500 euros would be about $4000, which would be a good price here, if the bike is as good as claimed.
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Offline bryanj

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #6 on: November 29, 2025, 08:29:22 PM »
Cant open the op link so cant comment properly on model
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline scottly

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #7 on: November 29, 2025, 08:49:43 PM »
Regardless of exactly what European model the bike is, it is a nice looking bike, and worthy of consideration, IMHO. :)
Don't fix it if it ain't broke!
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Offline Deltarider

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #8 on: November 30, 2025, 01:01:31 AM »
for european sales the "year" is irrelevant. That's correct.
This here forum happens to be an international forum. I have no knowledge of a genuine Honda document (not American Honda) that dominates by year. CMSNL does it as a service to Americans and - as expected - it has lead to errors. On the page where they list 31 CB550 models, the first one listed already leads to confusion: CB550 FOUR 1975 CB550K0 USA it says. 1975? A K0? Really? And as far as the CB500K3 fender, the partsnumber is even omitted. Luckily we have Honda4Fun to consult the genuine Honda documents.
It's a strange habit to always start with the year. Maybe it's because Americans also start with the number of an address and then the street. For the rest of the world it's a bit strange, not logic.
FYI - CMS shows that the european exports 500K3 and the 550K3 have a single stay front fender, whereas the bike for sale shows a 2 stay front fender. CMS could be wrong.
Well, the parts list isn't. p.55 in https://www.honda4fun.com/dwnload/Part-List/CB500/CB500-K3-CB550-K3-K4-Parts-List.pdf Realise that these parts lists were meant as reference for dealers! When you consult the paper editions, carefully collected and published by volunteers, you will also be informed on modifications during the production term of your model and will have a perfect overview. The CB500K3/550K3 parts list at Honda4Fun offers all in one glance. So it also gives you an overview for who's interested to have it like other markets had. It's only there where you can identify your bike accurately by engine- and framenumber. You only have to do this once. From then you can't go wrong in ordering parts.
In the states, the correct model identification is determined by frame and engine #'s. I don't know how europe does it.
Well... not by many Americans in this forum... In Europe you and your dealer know your model and you don't mention a year, not until you decide to sell your bike. Then you advertise your bike with the year it was registered to indicate when the bike actually started rolling. Makes sense doesn't it?



« Last Edit: November 30, 2025, 01:23:35 AM by Deltarider »
CB500K2-ED Excel black
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Offline hatmat

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #9 on: November 30, 2025, 01:38:36 AM »
Thanks everyone for chiming in!

Any time I've waited more than a day or two to call on a bike it was gone when I got ready. It is good to know what you want and keep an eye on the ads so you know what the market is for them, then when you are ready to buy, you can choose wisely.

Interestingly enough, it has been on sale since last May or so. Makes me think that there's probably something wrong with it if no one has bought it already. Or it just might be that most people are not interested in these older bikes in Estonia.

PD carbs are a nightmare if the bike is stood for any time, even weeks, otherwise cycle parts can be difficult to find az its a 2 yr only model

Ah, I didn't even know about the PD carbs problem, thanks for pointing that out. This and the fact that parts can be difficult to find makes me hesitant. I'll probably go check it out in spring anyway, but since the riding season is pretty short in Estonia and even during the season there might be times where the bike has to stand for weeks or so - I might reconsider buying this specific one. I'd have to take a look at ads in neighbouring countries then probably because here everyone is selling either cruisers or speedbikes.

Offline jlh3rd

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #10 on: November 30, 2025, 04:36:35 AM »
for european sales the "year" is irrelevant. That's correct.
This here forum happens to be an international forum. I have no knowledge of a genuine Honda document (not American Honda) that dominates by year. CMSNL does it as a service to Americans and - as expected - it has lead to errors. On the page where they list 31 CB550 models, the first one listed already leads to confusion: CB550 FOUR 1975 CB550K0 USA it says. 1975? A K0? Really? And as far as the CB500K3 fender, the partsnumber is even omitted. Luckily we have Honda4Fun to consult the genuine Honda documents.
It's a strange habit to always start with the year. Maybe it's because Americans also start with the number of an address and then the street. For the rest of the world it's a bit strange, not logic.
FYI - CMS shows that the european exports 500K3 and the 550K3 have a single stay front fender, whereas the bike for sale shows a 2 stay front fender. CMS could be wrong.
Well, the parts list isn't. p.55 in https://www.honda4fun.com/dwnload/Part-List/CB500/CB500-K3-CB550-K3-K4-Parts-List.pdf Realise that these parts lists were meant as reference for dealers! When you consult the paper editions, carefully collected and published by volunteers, you will also be informed on modifications during the production term of your model and will have a perfect overview. The CB500K3/550K3 parts list at Honda4Fun offers all in one glance. So it also gives you an overview for who's interested to have it like other markets had. It's only there where you can identify your bike accurately by engine- and framenumber. You only have to do this once. From then you can't go wrong in ordering parts.
In the states, the correct model identification is determined by frame and engine #'s. I don't know how europe does it.
Well... not by many Americans in this forum... In Europe you and your dealer know your model and you don't mention a year, not until you decide to sell your bike. Then you advertise your bike with the year it was registered to indicate when the bike actually started rolling. Makes sense doesn't it?


lol....christ!
Never said this wasn't an international forum.
Never said go by year. I can't speak for others.
American Honda is genuine honda whether you want to accept that or not.
Never claimed CMS was infallible.
I like my #, street, city, zip in that order and could care less what you think as a spokesperson for the rest of the world. A little narcissistic. And just how is this helping the OP.

My post was to the Op referencing a possible discrepancy as to what model was being represented. I don't do all the leg work, it's up to the buyer as it's his money. It matters to me so I'd confirm the model. He asked for opinions, he seems new with vintage Honda's, does he understand the mismatching of parts that can occur?
I don't care what someone says in an ad, I'm checking the #'s AND looking for mis-matched parts. Then I negotiate.

and to answer my own post. Depending on the export country, the K's could have either fender.

And FWIW:
 two basic truths stated in this entire thread.
1. It is really a nice looking, seemingly well cared for bike, well worth $4000 if it checks out.
2. It hasn't sold.....so why?

« Last Edit: November 30, 2025, 04:42:42 AM by jlh3rd »

Offline bryanj

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #11 on: November 30, 2025, 05:36:05 AM »
Its old, the front mudguard could easily have been replaced with new or better used and the two stay is more common.
Once the carbs are properly cleanes just run the engine once a fortnight till nice znd hot, BUT you need to find some one with an ultrasonic barh big enough to fit the complete rack, if de racked they are a swine to rebuild, i willlno longer even look ata set!
If you koose a sidepanel badge i dont think i have ever seen one for sale you can use zome earlier 550 parts with minor mods, like tank has to have seat as well.

As to why it hasnt sold my guess is it is too expensive for the erea it is in, as i said it is one of Hondas few unloved step children and did not sell a lot plus only the last two years of the 550 run with many different body parts to all previous models
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Stev-o

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Re: Advice for buying 1977 Honda CB500 Four (in Europe)
« Reply #12 on: December 01, 2025, 12:46:14 PM »
Thanks everyone for chiming in!

Any time I've waited more than a day or two to call on a bike it was gone when I got ready. It is good to know what you want and keep an eye on the ads so you know what the market is for them, then when you are ready to buy, you can choose wisely.

Interestingly enough, it has been on sale since last May or so. Makes me think that there's probably something wrong with it if no one has bought it already. Or it just might be that most people are not interested in these older bikes in Estonia.

PD carbs are a nightmare if the bike is stood for any time, even weeks, otherwise cycle parts can be difficult to find az its a 2 yr only model

Ah, I didn't even know about the PD carbs problem, thanks for pointing that out. This and the fact that parts can be difficult to find makes me hesitant. I'll probably go check it out in spring anyway, but since the riding season is pretty short in Estonia and even during the season there might be times where the bike has to stand for weeks or so - I might reconsider buying this specific one. I'd have to take a look at ads in neighbouring countries then probably because here everyone is selling either cruisers or speedbikes.

It is a nice looking bike.  If for sale for a long time and price has changed, I would have a little concern that it could be a scam. Understand that you dont have money in hand, but would be a good time to buy since it is not riding season where you are. 

If not too far, why dont you just go check it out at least for research, learn about it and confirm it is a real bike?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........