Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: Nurse Julie on December 10, 2020, 01:30:01 PM

Title: BONHAMS.... CB750 K6 IMPORT
Post by: Nurse Julie on December 10, 2020, 01:30:01 PM
https://www.bonhams.com/auctions/26118/lot/675/?fbclid=IwAR0U_JVlxz8MasMmFJRAx03Vso0F0LTwip11S_-TGJnwKTzRe9AiVBK1BYY
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: MrDavo on December 10, 2020, 01:49:21 PM
Very interesting for the originality, would it kill the value to actually use it? I’d still want to replace anything rubber before using it, especially oil and brake seals.

Looking through the lots, there’s a lot of Barry Sheene stuff, for example the helmet in lot 54 with a hole drilled so he could smoke a fag on the grid.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Johnny4428 on December 10, 2020, 01:58:42 PM
Nice bike Julie, little disappointed to see the overall condition, it seems if it has been subjected to a bit of corrosion. Given the age you might expect that but maybe not for a bike that’s never been on the road. Wonder what happened to the original tank and indicators? I would buy at the right money but still needs full restoration in my opinion.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: UK Pete on December 10, 2020, 03:52:03 PM
A very nice bike, agreed that's a certain level of restoration is needed, I am not that sure the value when restored would be huge amounts more than a fully restored one with higher mileage,  but it's nice to own a bike with a know history

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Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Skoti on December 10, 2020, 03:56:37 PM
Lots of corrosion under the seat area plus you can see the corrosion on the chain adjuster and swinging arm from the same photo.
I wonder if it's been stored near the seaside.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: paul G on December 10, 2020, 04:14:09 PM
Lots of corrosion under the seat area plus you can see the corrosion on the chain adjuster and swinging arm from the same photo.
I wonder if it's been stored near the seaside.

If you enlarge the pictures there is corrosion everywhere, fork bottoms are a mess and the rims are looking shoddy.
Must have been stored in a damp place.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Skoti on December 10, 2020, 05:05:20 PM
Just enlarged the photos and shocked to see the extent of corrosion on the left side.
Makes me wonder what state the cylinder bores are in?

My CB750F1 sat for 10 years in a damp shed before I acquired it, but it had been sprayed with WD40 before being stored so was not too bad corrosion wise.

But I discovered cylinder number one piston rings had corroded to the cylinder bore.
Freed off ok with a spanner on the crank nut, but smoked and consumed oil until repaired properly.



       
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: AshimotoK0 on December 10, 2020, 06:26:20 PM
Fantastic restorers reference.
Master cylinder boot looks like it has been nibbled by mice ..exactly the same as my 400-4 one, was when it was stored away in a barn for 15 years.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: UK Pete on December 10, 2020, 06:35:07 PM
I just enlarged the pics, it will need a total restore,
I am just wondering if that wear on front disk is only 3.6 km, I am sure they said not ridden

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Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Nurse Julie on December 10, 2020, 06:47:02 PM
It's got a strange brake master cylinder on it 🤔 Also, the kick start lever needs to be moved round 1 tooth on the spline, the long part of the lever should be parallel to the profile on the chrome cover 😊.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Spitfire on December 11, 2020, 10:10:02 AM
That's what my F1 looked like when I returned to the UK after 10 years away, I stored the bike in the garage covered in grease and WD40 and then dust sheets. When I got back I thought a service and some cosmetic work would do and I could use it again. However once I started stripping down the rusty bits which looked like the under seat area on that bike I quickly realised that a bit more was required, so a 2 year rebuild resulted.

Cheers

Dennis
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: AshimotoK0 on December 11, 2020, 01:09:28 PM
It's got a strange brake master cylinder on it

Could it be fitted with one like in the image below Julie? Problem with this bike is it has had bits robbed from it in the past and replaced with other items, so who knows what is orginal.  So I take back what I initially said about it being an excellent restorers reference.

[attachimg=1]
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Nurse Julie on December 11, 2020, 01:36:47 PM
Yes Ash, that looks like it.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Moorey on December 11, 2020, 02:42:39 PM
Offered from the National Motorcycle Museum Collection,1936 Brough Superior 982cc SS100
Registration no. VD 6582 Frame no. M1/1661 Engine no. BS/X 1001
Sold for £ 240,000
That's a few quid.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: UK Pete on December 11, 2020, 03:27:41 PM
It's got a strange brake master cylinder on it

Could it be fitted with one like in the image below Julie? Problem with this bike is it has had bits robbed from it in the past and replaced with other items, so who knows what is orginal.  So I take back what I initially said about it being an excellent restorers reference.

(Attachment Link)
Yes I agree ash, at first glance the bike seemed good, I could imagine being very dissapointed, if i saw it in the flesh
Way too many parts been swapped out,

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Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Moorey on December 11, 2020, 04:49:33 PM

 Do the engine case screws look right or as if they have been out.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: hairygit on December 11, 2020, 06:23:03 PM

 Do the engine case screws look right or as if they have been out.
The fact Trig pointed out about the kickstart being a spline or two out of position probably means the clutch cover has been off to free up the plates at the very least, so what else has been messed with is anybody's guess. When Honda UK stored it away it was "just an old model" at the time, probably why it wasn't stored better.

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Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Nurse Julie on December 12, 2020, 03:01:48 PM
Bike just sold for £10.000
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: JamesH on December 12, 2020, 03:03:06 PM
Wtf. That is insane.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Moorey on December 12, 2020, 03:05:29 PM

  They can't possibly have looked at it.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Nurse Julie on December 12, 2020, 03:07:02 PM
I watched the auction on line and even though the auctioneer said it was a 'museum piece', even he was very, very surprised at what it made.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Moorey on December 12, 2020, 03:10:26 PM

 How much will they have to put  into that to get it back to as new.

It started jumping as soon as he mentioned museum.  No wonder at the end he was asking to find more like it
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: UK Pete on December 12, 2020, 03:13:19 PM
Crazy money, I was thinking even 5k was alot

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Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: JamesH on December 12, 2020, 03:25:28 PM

 How much will they have to put  into that to get it back to as new.

It started jumping as soon as he mentioned museum.  No wonder at the end he was asking to find more like it
10-12k minimum.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: mike the bike on December 12, 2020, 05:01:10 PM
I don't think the buyer is going to ride it, more likely bought it as an investment.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Moorey on December 12, 2020, 05:03:39 PM

 How much will they have to put  into that to get it back to as new.

It started jumping as soon as he mentioned museum.  No wonder at the end he was asking to find more like it
10-12k minimum.

  It looks like someone is going to be disappointed.
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: Spitfire on December 13, 2020, 11:16:50 AM
Madness, unless they spend real money it will only deteriorate more.

Cheers

Dennis
Title: Re: BONHAMS.... CB750 K6 IMPORT
Post by: royhall on December 13, 2020, 12:08:08 PM
Believed to be 3.6 kilometres on it. So there not even sure that's correct. Some mugs out there.
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