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Author Topic: 78 CB750F Build  (Read 4007 times)

Offline PJs Garage

  • Posts: 20
Re: Bonneville 78 CB750F
« Reply #10 on: Sep 29, 2013, 00:38:38 »
After 16 hour of foam and fiberglass work the tail is at the painter being prepped for paint.
See pictures above.


Thank you all for the support.
Patrick Vogel
PJ's Garage
Las Vegas

Offline Hoosier Daddy

  • DTT SUPPORTER
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  • Posts: 4748
  • Earache my eye...
Re: Bonneville 78 CB750F
« Reply #11 on: Sep 29, 2013, 09:08:12 »
After 2 layer of fiberglass, I was able to pull the foam. It is very solid and ready to be sanded.

2 layers isn't very much, even for chop mat. since you already have it getting prepped for paint on the surface, I'd throw a couple more layers on the inside if it's not too late.
“Before you diagnose yourself with depression or low self esteem, why don’t you just make sure that you’re just not in fact surrounded by a bunch of assholes, alright?”


JAILBAIT '67 BSA 441 Victor Roadster
STAY CLEAN '67 BSA Spitfire
ROCK-IT '81 CB750C
BOMBER '81 GL1100
OVERKILL '80 GS750
NO CLASS '72 CB450 K5

Offline PJs Garage

  • Posts: 20
Re: Bonneville 78 CB750F
« Reply #12 on: Sep 30, 2013, 03:06:44 »
I planned on adding a layer to the inside, but the mat we used was thick.
I could use it as a boat if needed. 
Thanks for the info.

Patrick Vogel
PJ's Garage
Las Vegas

Offline o1marc

  • Posts: 2220
    • Creative Candy Powder Coating
Re: Bonneville 78 CB750F
« Reply #13 on: Oct 01, 2013, 00:18:39 »
Just curious how you held the bike up while weighing it?  When I weighed mine I set an 8" cinder block on just one scale and then after zeroing the scale I set the bike on the block to get a steady reading of 360lbs on my Sportster.
I like the seat you made and it's a good example for those who ask if it's cheaper to make one or buy one. It's only cheaper to make one if you think you time is worth nothing. My shop rate is $55/hr. If I spent what you did during shop time that's $880 plus materials. But that's what you have to do if no one makes the shape you want.

What class do you plan on running at The Salt?

Offline PJs Garage

  • Posts: 20
Re: Bonneville 78 CB750F
« Reply #14 on: Oct 01, 2013, 11:55:42 »
I lightly balanced the bike by the bar.
I considered purchasing a tail, but I wanted a specific design. I would like to have a mold made that will bring the cost down.
I see a couple of Sanctioning body's for Bonneville. Not sure which one is better. It will be 130-140 mph
Patrick Vogel
PJ's Garage
Las Vegas

Offline o1marc

  • Posts: 2220
    • Creative Candy Powder Coating
Re: Bonneville 78 CB750F
« Reply #15 on: Oct 01, 2013, 12:01:51 »
Ya, making a mold and selling off copies of the seat is the only way to recoup some of the expense of making your own. I am iin the same boat. You just hope your design is nice enough to be wanted by others.
The salt flats are run by the SCTA though different meets have different sanctioning bodies and most have rules close to the other. You just need to decide which race date you want to run to see what sanctioning bodies rules to build by. Speeds Week in Aug. and World Finals in Oct (canceled this week) are the main ones although there are just bike events.

Offline PJs Garage

  • Posts: 20
Re: 78 CB750F Build
« Reply #16 on: May 31, 2014, 01:13:54 »
Sorry for the long wait.

Due to some changes in my job I will not be going to Bonneville yet. 

Here are some updated pics of the build.
Patrick Vogel
PJ's Garage
Las Vegas

Offline PJs Garage

  • Posts: 20
Re: 78 CB750F Build
« Reply #17 on: May 19, 2017, 11:22:38 »
This is a update on the Cafe bike that I built. 
Finished the Build in August of 2014.
It's first ride was in Sturgis, South Dakota for the 2014 rally. Sturgis is a life changing place everyone should go.
The bike has been a weekend riding bike. I recently had a child and it is time to sell the bike.  It will be going on the Mecum auction block June 3rd 2017 in Las Vegas, NV.

Cafe Racer built as a 70s period correct
A complete chassis up restoration, built only with parts and tools that were available in the 1970s
Original "F" chassis dual disk front and disk rear brakes
Custom original fuel tank with brass cap
Hand made custom fiberglass tail with hidden battery
Painted in a one-off red gold flake paint
Polished valve covers and side cases
Yoshimura 4 into 1 pipe
Electronic ignition
Electric start with hidden battery in the tail
K&N pod filters
Dyno tuned by Main Street Moto LV
530 chain conversion with 17-48 tooth sprocket set
Gusseted frame for handling
New Progressive 12 series shock and spring set
Hand made peg set with adjustable brake and shifter lever.
Complete Motorcycle frame and wheels are powder coated
All hardware is zinc plated













Patrick Vogel
PJ's Garage
Las Vegas

Offline coyote13

  • Posts: 1136
Re: 78 CB750F Build
« Reply #18 on: May 19, 2017, 16:16:39 »
That came up really nice man, inspiring build.  Any clearance issues with the tail or battery?

Would lovvvvve to see a video running too, looks like it sounds mean
Half the fun's in the get there...

Offline PJs Garage

  • Posts: 20
Re: 78 CB750F Build
« Reply #19 on: May 20, 2017, 11:24:36 »
It's real close when you go over bumps.  I ended up trimming a small amount off to reduce the risk of contact of the tire.


Patrick Vogel
PJ's Garage
Las Vegas