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Offline turbocity tom

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another 72 cb500 build
« on: September 24, 2015, 10:48:38 AM »
Wanted to share my last project here.

This forum has been a great source of information in completing this project.





It started as your typical $200.00 non-running, non-titled 1972 CB500 basket case project.

1 year and several thousand dollars later, this is what I have.


CB500-4 lower end, CB550 barrel- bored to 61.5mm, using the crusinimage e-bay piston kit for 605 cc. the original CB500 head is ported (by myself) and all new valves installed, along with the head being milled .040. CB650 cam

All new cam chain, primary drive chain (original was rubbing the case), all new valve adjusting studs and lock nuts.

79 CB650 PD50B carbs rebuilt and rejetted, new intake rubbers and clamps.





The exhaust was custom fabricated (by myself) and has mufflers/ baffles built into the straight pipe sections under the engine.



E-bay clip-on’s and rear-sets custom installed.



Wheels and hubs powder coated and new spokes- new tires and tubes
Front and rear brakes rebuilt





79 cb650 gages custom installed and LED indicator lights installed in the tach (to replace the original idiot lights). Fabricated headlight mounts to lower the assembly. All new cables.

Dime City tail section modified (made longer in the seat area) to fit the 500 frame better. Custom seat pad.

Custom side cover/ number plates (graphics to be finished)

The bike runs very good and is a blast to drive.

Would be glad to answer any questions on the build.

Thanks for looking.

Tom

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Offline hondamad

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Re: another 72 cb500 build
« Reply #1 on: September 24, 2015, 11:18:17 AM »
Beautifully done
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Offline SOHC4 Cafe Racer Fan

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Re: another 72 cb500 build
« Reply #2 on: September 24, 2015, 11:45:17 AM »
I bet that motor has a fair share of grunt with the upgrades.  Well done!!
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1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline turbocity tom

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Re: another 72 cb500 build
« Reply #3 on: September 24, 2015, 12:32:44 PM »
Quote from: CB750 Cafe Racer Fan on September 24, 2015, 11:45:17 AM
I bet that motor has a fair share of grunt with the upgrades.  Well done!!

Thanks,  i was not able to ride it before building, so i have no way to judge how much more power it makes, but i ride a 2010 Kawasaki C14 every day and my other "fun" bike is a 79 DOHC 750 with a turbo.



the cb500 is very light and pulls great.

I like to build things just a little different-

Thanks    Tom
« Last Edit: September 25, 2015, 11:48:05 AM by turbocity tom »
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Offline MickB

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Re: another 72 cb500 build
« Reply #4 on: September 25, 2015, 03:02:30 AM »
Tom very nice build.
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Offline mfurlong

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Re: another 72 cb500 build
« Reply #5 on: October 06, 2015, 09:58:57 AM »
Could you describe how you custom mounted the cb650 gauges and idiot lights. I'm rebuilding a 79 cb650 and like the gauges just fine but not how they are mounted up so high. Any info would be appreciated.


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Offline turbocity tom

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Re: another 72 cb500 build
« Reply #6 on: October 06, 2015, 11:21:45 AM »
Quote from: mfurlong on October 06, 2015, 09:58:57 AM
Could you describe how you custom mounted the cb650 gauges and idiot lights. I'm rebuilding a 79 cb650 and like the gauges just fine but not how they are mounted up so high. Any info would be appreciated.


Sent from my iPhone using Tapatalk

Hi,  i pulled the chrome covers off and painted the rear of the gages with wrinkle paint. The Tach was split apart and brite LED's installed across the bottom of the gage, wires run out thru a hole.  A custom aluminum bracket was fabricated to re position the gages flatter and lower (closer to the headlight) which was also mounted on custom fabricated "ears". the Dime City Cycle top triple clamp has a set of holes for custom mounting the gages. It might not be possible with the stock tripple clamp.

hope this helps.    Thanks    Tom
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Offline mfurlong

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Re: another 72 cb500 build
« Reply #7 on: October 07, 2015, 07:15:25 PM »
That's awesome. Thanks for the info and quick reply. Much apprciated.

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