1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

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1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Mon 11 Apr - 23:51

Well I promised to show you my project so here it is!
I bought the bike in August 2010 and it had 56.000km on the counter. The initial plan was to buy a 750> 2 cylinder bike (BMW R90/R100) but the starting price was just too expensive for me... Plan B was a CB750; affordable, lot's of parts and good bike for Café custom.
Although I really like the CB750 one day a boxer BMW will replace the CB750 or share the garage...


Another initial plan was to leave the engine intact. If it's not broken don't fix it! But somewhere in September she ran a bit hot and got stuck... So just to be sure I had a look inside... First everything seemed normal, no damage but the further I went the more weird stuff I found: liquid gasket in stead of normal foot gasket , a few weird marks on the pistons??? and 2 types of piston... just to name a few.



I decided it was best to split the cases and fully check the engine. In the end there were no weird surprises in the rest of the engine



New engine parts were ordered (pistons 0.25, rings, chains, cam bearings... etc.)



And this is how she rests now:


In the meantime I stripped the frame, bought a tank and seat and made some adjustments:









And today I got my frame (&stuff) back from the coater!!!



That's about it for now Wink
Right now I have to prepare my seat+tank for the painter (parts will leave this week). Then a friend will take care of the rims. In the meantime I want to finish the engine and put it back in!! Rolling Eyes



Last edited by Gustlock on Wed 18 May - 0:39; edited 3 times in total
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Jimi on Tue 12 Apr - 11:42

well only one word i can say; wonderfull :) I like your taillight, where did you get it?? Nice oldschool painting Very Happy Well done, keep going :)
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  650zed on Tue 12 Apr - 16:46


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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 12 Apr - 17:05

Thanks! The tank and seat are still paintless... Tomorrow or the day after they will head for the painter.
Tail light is the tear drop taillight form Dime Shity Cycles: http://www.dimecitycycles.com/
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Toecutter on Tue 12 Apr - 19:15

AS i am a cb nutcase , i can only say Job Well done so far man. That tail light just rocks. The gastank is it a TT one ?

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 12 Apr - 19:35

Thanks Toecutter!
The gastank is a Vinylester (seller guaranteed me vinylester can handle modern fuel) can Aermacchi replica tank: http://thekneeslider.com/archives/2005/12/22/aermacchi-motorcycles/
Looks a lot like the Rickmann tank. It has been customized a bit to fit the CB. It was made by Ruig Polyester: http://web.inter.nl.net/users/M.Ruig/index.htm


Last edited by Gustlock on Tue 12 Apr - 22:40; edited 2 times in total
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  manx8valvetriton on Tue 12 Apr - 21:37



Love that tank and seat

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Fri 22 Apr - 22:30

Started on finishing the engine but first the seat needed to be finished:


DIY spray booth:


Cylinders almost done:


Head ready for paint. Used mom's stool to rotate the stuff


Engine almost ready for paint:


Cylinders and head freshly painted and baked in mom's oven. Glad she was out today!
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  joolzned on Sat 23 Apr - 10:12

Looking good, nice colour and great style :)

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  andreas on Mon 25 Apr - 21:54

Hi Gustlock,
cool project, and it shows - space is in the smallest tent- my "spraycabin" is the same like yours - maybe we have the same dealer??
Your first pic - and i think - wow - not so much to do to rebuild it in a c-racer - but the motorpic`s - can`t belive that someone put this together. But at the end you can be proud - i`m sure a great bike rolls out !!
Do you visit Achterveld??

Andreas


Last edited by andreas on Tue 26 Apr - 19:05; edited 1 time in total
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Mon 25 Apr - 22:13

Hi Andreas! Thanks a lot!
The guy who 'fixed' this engine in the past should be
Don't know yet about Achterveld, it's a long drive but not impossible Razz Maybe, maybe not Wink


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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  manx8valvetriton on Mon 25 Apr - 22:15

Great pics,

Keep up the good work!

Mums don't realise ovens are for engines they just don't understand lol!
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Mon 25 Apr - 23:47

Some more pics!
Painted the engine:




Quick polished the LH side covers.
Before:


Sanded (320,500,800):


Belgom:


Polished:


All 3 together:


Tomorrow: Cylinder+head back on!!!
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  650zed on Tue 26 Apr - 15:44


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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Wed 27 Apr - 23:37

Got the seat back today!!



Made myself useful at school:


Had some good help from a friend who designed the profile on autocad and drilled one disk for me

He also made these:


At home:


In the meantime camshaft is in and timed with crankshaft. Tomorrow valves, cover and then the engine is about finished!

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  speedfreak on Thu 28 Apr - 13:20

that is a good looking engine and a verry nice seat to.
Keep up the good work.

Grtz Frank,
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Toecutter on Thu 28 Apr - 19:35

Great rockin' seat man, say, what did you use fo the polished parts ? A handpolisher or with a stand ??

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 3 May - 14:37

Used Belgom Alu and a cotton disk (?) on a hand drill.

Last weekend it was...
...One small step for man, one giant leap for mankind!!
Finished the engine and put her back where she belongs!









Who wants to guess the weigth of this engine? No oil pump and carbs installed. confused


Rims now with spokes!! afro


And with tyres


Hoping to have her rollin' by the end of this week!
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Mo®ten on Tue 3 May - 16:51

Looks good smart move to put the frame on the engine instead of the opposite way



Edit, engine 80kg ?
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 3 May - 18:04

Yes it's a whole lot easier that way!
The engines weight is a bit more but you're close. You got the 8 right.

8X,X Kg.
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  sven on Tue 3 May - 20:24

Would have guessed over 100kg but now with your help I say 89,9 kg.
Nice bike anyway!

Best regards
Sven
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 3 May - 20:51

Nope, it's less.
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  manx8valvetriton on Tue 3 May - 22:36

My Guess is 85KG

If I win do I get the bike

Rims look fantastic

Great looking bike keep up the good work

Jon
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  Gustlock on Tue 3 May - 22:51

Hahaha the correct awnser is 86,8!!
You haven't won the bike but when it's finished I will allow you to touch it, one full hand for a few seconds!! lol!

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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

Post  manx8valvetriton on Tue 3 May - 22:59

Gustlock wrote:Hahaha the correct awnser is 86,8!!
You haven't won the bike but when it's finished I will allow you to touch it, one full hand for a few seconds!! lol!


You were standing on the scales!!!!!!

lol! cant wait to get one full hand on her (I'll need at least 24 seconds)

I need to get out more!

Jon
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Re: 1976 CB750F Old Skool CaféR... Rollin' Rollin' Rollin'

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