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1961 CB72 Project

Want to keep a Restoration Log? Post it here! You can include photos. Suggested format: One Restoration per Thread; then keep adding your updates to the same thread...
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G-Man
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Location: Derby, UK
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Post by G-Man » Fri Jul 25, 2014 10:50 am

I managed to make a little progress before I fly to the US for two weeks on Sunday. My friend, Keith, promises me a trip to the Barber Museum in Birmingham AL. We went a year or so ago but it was difficult to take it all in....

A set of repro handlebar grips are on their way from Ted's Special in Japan.

http://www.ted-spl.com/forsale/parts/gr ... _grip.html

I took a pile of cycle parts to my local bead-blaster in Derby. They normally work on train parts but I get the impression that the lads who work there like working on motorcycles. They were pleasantly surprised that I don't need the parts for two weeks. That means that I will have some clean and bright parts to work with when I get back in August.

Things are looking good for the difficult to find parts now but I keep uncovering little differences that these '61 bikes have. Very early '61s have vertical bolt patterns on the rear air filter brackets but luckily my frame uses the same as later bikes with a diagonal pattern.

Next up on the 'must-have' list is an early rear brake plate which has the torque bracket positioned at a different angle. This in-turn, works with the longer aluminium brake stay which, in my case, is 385mm between centres. Even those brake stays come in different lengths.

Alan Curtis kindly traded his 1961 rear fender (different cable routing) for some good fork parts so we are both making progress.

I still have to find or make the steering damper parts which also differ from later models. I'm about 50% there with those as shown in Alan's picture, below.

ImageSteering damper by graham.curtis, on Flickr

I am going to get the pair color-matched to the original color in the headlamp. Notice the handy ammeter grafted in there? Judging by all of the charging traumas on the forum, it might be handy to keep it.....

Imageheadlamp by graham.curtis, on Flickr

G
Last edited by G-Man on Sat Oct 04, 2014 2:58 pm, edited 1 time in total.
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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sarals
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Joined: Mon Jun 25, 2012 9:19 pm
Location: Monterey Peninsula, California

Post by sarals » Fri Jul 25, 2014 11:28 pm

:)
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca

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G-Man
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Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
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Post by G-Man » Tue Jul 29, 2014 4:31 am

I am in the US at the moment but these beautiful Grips arrived from Ted's Special in Japan. They arrived much earlier than expected. Great service from those guys and their bikes are just beautiful.

http://www.ted-spl.com

Image

1961 CB72 Handlebar Grips
by graham.curtis, on Flickr

Many thanks to Tim Miller who helped me out with some of the damper parts and has generously shared his knowledge of these '61 bikes.

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

hondauser
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Posts: 62
Joined: Fri Aug 15, 2003 3:33 pm
Location: France , poitiers ,86

Cb72 head cylinder!!!

Post by hondauser » Tue Jul 29, 2014 9:46 am

Hy G- Man
I hâve Some drands news heads for CB 72 !!!!
Tell me if You are intérested
I am localised in France near poitiers , the P&P should'nt be to expensif !!!
Friendly ´ MK
cb 72
cb 77 ,c77 ,cl77
velocette thruxton

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G-Man
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Posts: 5678
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
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Post by G-Man » Tue Jul 29, 2014 9:40 pm

MK

Early 10mm spark plugs?
Please send me a pm with detail.

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

hondauser
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Posts: 62
Joined: Fri Aug 15, 2003 3:33 pm
Location: France , poitiers ,86

CB72 head

Post by hondauser » Wed Jul 30, 2014 7:20 am

Hello G-man

sorry !!! all my heads are 12x125 ;
  although I think it is not a big deal to put D8H spark-plug !!!
they are news but a little dusty and need a little cleaning ;
can also be a quick reamer in valve guides !!!

voila ,

michelkwort@free.fr
cb 72
cb 77 ,c77 ,cl77
velocette thruxton

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G-Man
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Posts: 5678
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
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Post by G-Man » Sun Aug 03, 2014 9:00 am

Picked up a few parts today at my friend's house in Connecticut.


This is a black speedo and tacho cable that I got in a job lot of parts. The numbers look wrong but, at least, they are black!

ImageBlack speedo & tacho cable by graham.curtis, on Flickr


I got a pair of brake shoes with a -000 code but not sure yet whether they are SLS or DLS.

ImageFront Brake shoes by graham.curtis, on Flickr



This is the correct speedo gasket for early, spring-retained, speedos.

ImageSpeedo Cushion by graham.curtis, on Flickr


Just one or two parts to look out for now. The lower plate for the steering damper and a black rear brake cable with the lube point. And, of course, that rear brake plate and hub with the odd torque arm position to suit the 385mm long alloy brake stay.

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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