Author Topic: CB750F Cafe Build, tons of pics  (Read 4120 times)

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Heironymous Josh

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CB750F Cafe Build, tons of pics
« on: October 03, 2008, 03:54:00 pm »
Hello everyone!  I've been a member here for about 2 years but haven't been on in quite a while.  I've got a 77 750F, senora, that has been retired for the year and has gone into the shop (in many many pieces) for a complete restore/reworking.  She's completely broken down and the frame just went to the fabricator for some mod's.  As the build progresses, I will be sure to post more pics.  Thanks for looking!

Purists, lovers of all things original & cafe haters -- turn away now.


Here's the frame, recently stripped and on its way to the fabricator


The airbox mounting brackets are going bye bye.  Pods will take the bulky box's place


The center stand is going to disappear as well, for weight, aesthetics & clearance.  I'm open to suggestions but I see no need for it.  I have a pretty good lift, otherwise the kickstand works fine.  These brackets will disappear before the frame takes powder.



Check out this steaming pile of loveliness.  The PO must have had a fat girlfriend, there was a custom second seat support.  The weld's are uglier than a bag of buttholes.  This is going away.


Bye bye left side cover mounting brackets, electronics are going under the rear cowl and I'm looking for a real sharp cylindrical oil tank, may have one fabbed.  What clean looking solutions have you guys seen for oil tanks?


These will also disappear.  Stock oil tank is out.


The new home of the electronics and perhaps the oil reservoir.  Another shot of that sweet custom seat support.


After working around the flange on this bracket to get the motor out, it will be ground flush to make the motor going back in a whole lot easier.


Can these brackets be shaved at all?  Sure would help with engine clearance but I don't want to jeopardize the weld. Any input?



Seat lock is going away as well.  I've got a cleaner plan for fastening the seat.  Besides, the fiberglass seat and rear cowl I built for it hugs the frame real tight and the lock sticks out like a sore thumb.


PO also sprayed the tappet covers black, I'm going to strip and polish these.


There's a lot of polishing to do


This is where the motor sits until the frame is done.  I also have to rebuild the clutch this winter.  The bike runs fantastically well.  I gave the carbs a thorough cleaning at the beginning of the summer, synched them up nice, checked the valve clearance, changed the oil and she ran great, she always has.  She was my DD the summer before last.  I intend to check the cam chain and wonder what else should I do while the motor is so easy to work on?  Also, is there a more durable coat I can apply to the motor than high temp engine paint?  That stuff chips so easy.  Any input would be awesome!



Thanks again for stopping by!

Josch


Offline FunJimmy

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Re: CB750F Cafe Build, tons of pics
« Reply #1 on: December 07, 2008, 08:39:17 am »
Josch

I'm currently looking for a cleaver way of fastening my cafe seat too. What can you share with me?

Thanks
FJ
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

Offline wizzy

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Re: CB750F Cafe Build, tons of pics
« Reply #2 on: December 07, 2008, 10:12:54 am »
steve "carpy" carpenter has his own brand of engine paint on cb750cafe.com site and all his bikes look pretty trick.
"They didn't make me captin because I could sail"

Offline rachet

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Re: CB750F Cafe Build, tons of pics
« Reply #3 on: December 07, 2008, 04:27:36 pm »
Wow! Two 77 750f builds at the same time!  http://forums.sohc4.net/index.php?topic=43372.0

Keep it up and post pics!

Rachet~
But I need Tacos!  I need them or I will explode!

Heironymous Josh

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Re: CB750F Cafe Build, tons of pics
« Reply #4 on: December 20, 2008, 01:36:47 pm »
Josch

I'm currently looking for a cleaver way of fastening my cafe seat too. What can you share with me?

Thanks
FJ

I'm getting ready to solve that problem right now!  How about, if either of us comes up with a clever way to mount the seat, we'll share the details with the other?  Below is a pic of my seat fresh out of the mold.
I'm having camera issues otherwise I'd post up a pic of my seat.  Once I get a charge on this battery I will.

Heironymous Josh

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Re: CB750F Cafe Build, tons of pics
« Reply #5 on: December 20, 2008, 01:40:15 pm »
steve "carpy" carpenter has his own brand of engine paint on cb750cafe.com site and all his bikes look pretty trick.

I've seen that but I have to wonder how it holds up.  I've only ever seen his bike fresh off a build.  Besides, Carpy's a business man, he may just buy grill paint and have it relabeled!  I'm going to do some more research on it.

Offline FunJimmy

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Re: CB750F Cafe Build, tons of pics
« Reply #6 on: December 20, 2008, 02:44:23 pm »
Josch

I'm getting ready to solve that problem right now!  How about, if either of us comes up with a clever way to mount the seat, we'll share the details with the other? 

I went with a custom aluminum hinge, factory rubber bumpers and a rare earth magnetic closure. You can find super powerful rare earth magnets and cups at http://www.leevalley.com/wood/page.aspx?c=1&p=58750&cat=1,42363,42348

The 3/4" magnet is plenty strong to hold the seat down. The seat closes with a snap and requires a good tug to over come the magnet.

How about you. Any ideas yet?
« Last Edit: December 20, 2008, 02:48:33 pm by FunJimmy »
You never see a motorcycle parked outside of a psychiatrist's office!

CB550 Cafe Interceptor a Gentlemans Roadster
http://forums.sohc4.net/index.php?topic=27159.0

500chop

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Re: CB750F Cafe Build, tons of pics
« Reply #7 on: December 22, 2008, 04:25:02 pm »
A cool way to attach a cafe seat that ive seen on some original race bikes from the fifties is to put slits in the seat cover between the pan and seat foam at the front and rear and run leather straps through. loop them around the frame and pull em tight. old leather belt where the leather has softened up are great. center the buckles under the seat and cut them to length. you can even rivet them to one rail and have a seat that flips open. real vintage looking. to make it look really nice its best to spend the money to have the edges of the slits finished by a good upohlsterer, and it helps with durability as well.

devbear12

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Re: CB750F Cafe Build, tons of pics
« Reply #8 on: February 22, 2009, 08:02:42 am »
I like your way here is how i did it, super easy.

Drilled two holes in seat to match the old turn signal mounts on the rear of frame intalled.  Dont use those ugly things anyways.  Then put a bolt- washer- seat -washer- nut and tightned to the seat.  The bolt needs to have enough threads to go through the hole in the frame and once again nut- washer- frame- washer- nut and tightened it to the frame.  i now have a rearward hinge.  to tie down the front i simply attached two small strips of sheetmetal to the bottom of seat and screwed it to the frame using self tapping screws.