78 CB750F2 supersport

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78 CB750F2 supersport

Post  warthog1959 on Sat 5 Dec - 17:18

Here with the story so far. I was up at the workshop yesterday Friday 4th Dec and took a couple of snaps. I have included the wheels I will be using. I'm not sure who the manufacturer is but a good find I think. Thanks to Bryan Jones. I am not doing the engineering and customising on this that is down to my mates brother Rob. Also a mate by now. Thanks to my pal Jerry for the loan of the trailer.
















[img][/img]


Last edited by warthog1959 on Mon 26 Apr - 23:47; edited 11 times in total (Reason for editing : Further Progress)

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Re: 78 CB750F2 supersport

Post  TinTin on Sat 5 Dec - 20:16

kickoff seems to be going OK, let us know about the progress Very Happy

Do not know the maker of the wheels you intend to use, maybe somebody else will recognize 'm bounce
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Wheels

Post  warthog1959 on Sun 6 Dec - 4:28

I sent the wheel pictures to Carpy and he say's he has a pair and that they are UK made Melbur's. but I could not find anything on the internet to verify this. Obviously he is very Knowledgeable, but there are a few similar wheels on various variations and varieties. such as this 1976 Dresda. But the rear has 5 spokes and mine has 6. (I thought I was almost there)

http://gallery.sohc4.net/main.php?g2_itemId=5060&g2_imageViewsIndex=1

I tell you it's costing me a fortune, but it's a fun way to get poor. (and divorced) next is beadblast powdercoat/spraypaint. The head has been gas flow polished and the pots bored to 836. Valves are being seated and guides replaced with titanium. With regards to the seat which is a hollow fibreglass shell (roxcity). I am going to try and fill the entire cavity with NO MORE BIG GAPS foam and use the foam as a gasket between the fibreglass and the frame rails. It might not work but can't harm to try. I would probably paint the final foam finish underneath the seat with some sort of oil based external paint or perhaps seal o crete. I have just enquired about shipping costs for a set of Kehin smooth bore carbs. I can't even ride that fast so what is wrong with me? Well it's a religion isn't it?....oh... er perhaps it's just me then.

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Re: 78 CB750F2 supersport

Post  650zed on Mon 7 Dec - 11:28

The tank looks good! Did you make the knee indents yourself?

This reminds me this video:


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Knee indents

Post  warthog1959 on Mon 7 Dec - 20:42

The guy in the video made that look very easy, but I am happy with my result. I didn't do the knee inserts, my friend rob is a welder. He cut out the shapes and then welded the left piece into the right side and the right into the left (If you hadn't worked that out). The weld will be ground smooth and filled where appropriate.


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Re: 78 CB750F2 supersport

Post  650zed on Tue 8 Dec - 11:48

Oh no, I know it's not the same, it just reminded me that funny videoclip, that's all.
I saw that it's a nice & fine work, absolutely.


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Wheels

Post  TWINFIN on Wed 16 Dec - 11:45

They might be one of these wheels (the photos are of CB400-Fours though) :

My guess is CMA cast wheels:



but they could be E.P.M. magnesium wheels from Italy:




some other possible brands were Morris and another called Lester.

If they are magnesium you might want to have them magnafluxed for cracks just to be safe.
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Re: 78 CB750F2 supersport

Post  warthog1959 on Tue 27 Apr - 0:05

Progress has been slow so far, but only by choice. It is mainly because of my late decision to go with spoked wheels and that took quite a bit of sourcing and restoration. Now that part is done (Honda Gold wing front end and Cb750K 1976 rear wheel) Rob is underway


























Last edited by warthog1959 on Sat 8 May - 2:17; edited 2 times in total

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Re: 78 CB750F2 supersport

Post  warthog1959 on Tue 27 Apr - 0:12

Oh and the Black F2 engine, blasted with Rob's new Soda toy, Substance will dissolve in water and so anything that gets in the engine cannot do damage, will be cleaned up on rebuild.


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Re: 78 CB750F2 supersport

Post  mg on Tue 27 Apr - 16:28

it looks great so far
you are on the right way
nice project
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Re: 78 CB750F2 supersport

Post  rcmbuyske on Thu 29 Apr - 18:13

It's gonna be a classic !!
very nice so far.

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Re: 78 CB750F2 supersport

Post  Toecutter on Thu 29 Apr - 20:18

Hoo-Raa , these are the bikes i will sell my left nut for..as a figure of speech Very Happy

I just picked up where a left a few months ago , havent been able to join for quite a while and i must say this is one nice project.

Will follow this progress.

great job so far man.

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Re: 78 CB750F2 supersport

Post  andreas on Thu 29 Apr - 23:24

I saw the basic and think - ok - classic Honda design comes to an end!
But what you build - respect ! This is what we like - and with open pipes - perfect!
Great job - so i wait for the next pic`s.

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Re: 78 CB750F2 supersport

Post  warthog1959 on Sat 8 May - 1:46

Entered in error


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Re: 78 CB750F2 supersport

Post  warthog1959 on Sat 8 May - 2:06

Took a ride up to the workshop today and Rob is making good progress, but say's there are still not enough hours in the day. Lower part of the engine is now reassembled with new crank and big end bearings. Case is painted Titanium silver. The Billet Yoke, clock bracket, clocks and idiot lights have all come together very nicely. Rear lights have been fitted direct to the seat, we thought there would be number plate issues if we fitted the light to a 'fender'. Doesn't look half bad. Front Calipers in place, they were black, now shiney alloy with new piston's. Rob has made a fibre glass seat pan to accomodate some foam and vinyl that we can velcro to the main seat body and still have access to the glove box and battery. Rob has taken some more detailed shots of the progress, but here are some pics of the build as it progresses. Note though the 'trip mileage' on the clock. What with the skull decal it's a bit spooky. Maybe Rob is having me on.


















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Re: 78 CB750F2 supersport

Post  Rafe56 on Sat 8 May - 9:33

nice, real nice to say the least.

I have a question tough, the crankcases look great. Is this the result of sodablasting???????
Me and my buddies are gonna build such a blaster so that might be a solution for my engine.

gr Rafe,
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Re: 78 CB750F2 supersport

Post  schuster666 on Sat 8 May - 12:51

cool cool bike!
looks hot and everything is done very professionally cheers

there is only one little thing i would personally do different: the forntbrake cable
i would switch to steelflex cables. they come in different colours and
the brake works much better with them.

Big compliment for your bike!

Schuster
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Re: 78 CB750F2 supersport

Post  warthog1959 on Sat 8 May - 13:17

Rafe56 wrote:nice, real nice to say the least.

I have a question tough, the crankcases look great. Is this the result of sodablasting???????
Me and my buddies are gonna build such a blaster so that might be a solution for my engine.

gr Rafe,

The crank case in the latest photograph is painted with Titanium VHT. The earlier picture is the engine after Soda Blasting and before painting. This engine was originally painted black. The dark spots on the crank case were corrosion, which were rubbed off with a polishing wheel before painting.


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Re: 78 CB750F2 supersport

Post  warthog1959 on Sat 8 May - 13:25

schuster666 wrote:cool cool bike!
looks hot and everything is done very professionally cheers

there is only one little thing i would personally do different: the forntbrake cable
i would switch to steelflex cables. they come in different colours and
the brake works much better with them.

Big compliment for your bike!

Schuster

Yes I agree, Definitely part of the plan. On behalf of Rob thanks for the comments. I have been able to play an active role in the development of this build over the last few months, but now I am the same as you chaps a spectator. Can't wait to hear that motor fire up and throw a leg.

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Re: 78 CB750F2 supersport

Post  andreas on Sat 8 May - 14:07

Hi Warthog - shine like i like it. As i say - perfect job!

Andreas
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Re: 78 CB750F2 supersport

Post  Toecutter on Sun 9 May - 16:59

This is eye candy Cool

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Re: 78 CB750F2 supersport

Post  650zed on Mon 10 May - 11:51


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Re: 78 CB750F2 supersport

Post  warthog1959 on Mon 10 May - 12:49

Thanks guy's makes it all worth while and I'm sure Rob will get a buzz out your compliments too. Today I am taking the seat pan to a seat specialist in Coventry. Then I am going to look at open face helmets. My Nolan flip up is not going to look right let's be honest.

This is the site if you have not come across it before. They are based in Nuneaton. Although I think that is a long trip for most of you. You can order on line, but I would never do that personally, you can never be sure what the fit will be like.

http://www.openfacehelmets.co.uk/All-Helmets_B23085.aspx

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Re: 78 CB750F2 supersport

Post  CBeast on Mon 10 May - 13:14

Hey,

very nice project indeed!
Where did you bought your seat? I like the way it fits to the original tank.

Grtz

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Re: 78 CB750F2 supersport

Post  warthog1959 on Mon 10 May - 13:58

From this guy, but through EBAY. The quality of the fibreglass is very good. We had to reshape the corners on the side very slightly to help it butt up to the tank.

http://www.roccitycafe.com/store.php

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Re: 78 CB750F2 supersport

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