Author Topic: Early 70’s CB250  (Read 906 times)

Offline Andych

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Early 70’s CB250
« on: November 02, 2018, 10:07:10 AM »
It would appear that laying around in Rehab hospital isn’t good for my wallet....
An ad came up on Facebook Marketplace for this bike and I thought I will go back to that later on and message the seller...
Went down to Physio and after being tortured for an hour or so came back to my room and started looking for the ad again....could not find it.
I eventually gave up and even told my better half it was lucky I couldn’t find it as I would have bought it...
Guess what jumped up into my feed again later on in the afternoon....😊
After talking with the seller on the phone I transferred some $$ and the bike is now mine... I just have to wait till I am able to drive 600km to pick it up.
My wife wasn’t even upset over it...too bad if she had been as I had already paid for it by the time she got here to see me...
While pictures don’t show the full story it is all there...and at A$250 I think I got myself a bargain. [ Guests cannot view attachments ]
1975 CB400 - Project
1978 Yamaha SRX250 - Project

Offline SteveD CB500K0

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Re: Early 70’s CB250
« Reply #1 on: November 02, 2018, 11:07:04 AM »
Bryan will chip in with his thoughts on the G5 :)
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1971 CB500K0

Offline Bryanj

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Re: Early 70’s CB250
« Reply #2 on: November 02, 2018, 11:40:01 AM »
No i wont there are not enough asterisks and exclamation marks to hide the rude words!

Offline Andych

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Re: Early 70’s CB250
« Reply #3 on: November 02, 2018, 11:47:29 AM »
Haha...is mine a G5 though? What I looked up showed the G5 as having a disc brake and was apparently de-tuned??
Anyway, I had one when I went for my license originally in 74 and I loved it... nice set of Dunstall mufflers gave it a nice note.
Granted I was a good 30 plus kg lighter and my memory may well be clouded..but they are few and far between here as most have been poorly chopped about as Cafe Racers and rattle can painted flat black... so good condition non butchered items get good $$$
1975 CB400 - Project
1978 Yamaha SRX250 - Project

Offline Bryanj

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Re: Early 70’s CB250
« Reply #4 on: November 02, 2018, 02:52:09 PM »
G5 tank and cyl head, somebody has fitted an earlier front fork/wheel

Offline AshimotoK0

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Re: Early 70’s CB250
« Reply #5 on: November 02, 2018, 03:36:03 PM »
G5 tank and cyl head, somebody has fitted an earlier front fork/wheel

The early CB250G's (not imported here) had a drum brake like the CB250K4.

We all have our opinions of them but they sure look a pretty bike and I was amazed when I sold some parts how much interest there is in them. Here is a 'before and after pic' of one I sold last year,only 2k miles but unloved and then as restored by the bloke I sold it to.

[ Guests cannot view attachments ] [ Guests cannot view attachments ]

“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline AshimotoK0

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Re: Early 70’s CB250
« Reply #6 on: November 02, 2018, 03:42:11 PM »
Manuals you will need Andy ;)

CB250G5, CB360G5, CB250K5 Part Manual (thanks Chris400F)

https://www.dropbox.com/s/mvcm4kgrcyntkp0/Parts%20List%20CB250%20CB360%20G5.pdf?dl=0

SEARCHABLE CB360 G5 SERVICE MANUAL

https://www.dropbox.com/s/mcug2pb5eaj6ydq/CB360_Searchable_Manual.pdf?dl=0
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline AshimotoK0

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Re: Early 70’s CB250
« Reply #7 on: November 02, 2018, 03:54:56 PM »
Here is a pic of the drum front brake model:

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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Andych

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Re: Early 70’s CB250
« Reply #8 on: November 02, 2018, 07:50:58 PM »
Thanks for the links Ash.. . I will have plenty of work to do..
Once I get it home and can look at the Vin I will have a better idea of what it needs to go back to how it should be...or modify it slightly to appeal more.

And we do all have our own likes and dislikes etc... personally...this one is one of my likes 😆
1975 CB400 - Project
1978 Yamaha SRX250 - Project

Offline Bryanj

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Re: Early 70’s CB250
« Reply #9 on: November 02, 2018, 09:54:11 PM »
The only reason i didnt like them in the workshop was owner abuse and lack of care/service then expecting me to make them perfect for no money!

Big thig was not cleaning the centrifugal oil filter taking out cams and heads then numpties forcing cam chain tensioners and breaking chains, not including reving the nuts off them cold shattering rings and wrecking pistons/bores.

Offline Andych

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Re: Early 70’s CB250
« Reply #10 on: November 02, 2018, 11:05:43 PM »
Ahhh, I can see the reason why and fully understand... I don’t get why people buy bikes and expect them to run forever with no maintenance...
I am trying to convince my son NOT to get a bike as he can’t keep up with checking oil and water etc on his car...and I know who will get the call to fix a bike 😤
1975 CB400 - Project
1978 Yamaha SRX250 - Project

Offline Oddjob

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Re: Early 70’s CB250
« Reply #11 on: November 02, 2018, 11:07:49 PM »
Honda have produced quite a few lemons in it's time, the G5 sits quite proudly at the top of that list. I hated having to work on them, mainly as Bryan has said, the owners just didn't know how to look after them and they seem to rot just by looking at them, especially the exhausts.
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Offline Andych

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Re: Early 70’s CB250
« Reply #12 on: November 03, 2018, 12:08:12 AM »
Thankfully rot isn’t an issue in Australia..well not as much as the UK

I will work my way through the rest and should come out with a fun little bike at the end...
Maybe I should paint it Lemon yellow 😊
1975 CB400 - Project
1978 Yamaha SRX250 - Project

Offline SteveD CB500K0

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Re: Early 70’s CB250
« Reply #13 on: November 03, 2018, 07:16:52 AM »
My comment was biased by the fact that my room-mate at uni had a 360.

The rest of us had 400s and 500s

He destroyed the top end twice in one term which used his entire living allowance.

The next October he came back with a brand new (S plate) 750F1 in yellow having worked as a dispatch rider in London over the summer.


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2015 Tiger 800 XRT
1971 CB500K0

Offline Andych

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Re: Early 70’s CB250
« Reply #14 on: November 03, 2018, 08:33:50 AM »
Haha... all comments are welcome. I understand the why’s but they are mainly based on past history.. where these bikes were daily riders and many pushed pretty hard.
This one won’t do too many miles and it will be well looked after and hopefully there may be some modern techniques to minimize the weak areas..
In the end it is something for me to play with after I have finished the CB400F.
1975 CB400 - Project
1978 Yamaha SRX250 - Project