Author Topic: CB500 from Atlanta  (Read 750 times)

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Offline philwill

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CB500 from Atlanta
« on: March 22, 2017, 06:32:58 AM »
Hey everyone.

After a long time reading, finally decided to join up. I'm a college student and enjoy working on bikes in my free time. I've owned several DOHC CB750s but most recently I picked up a '72 CB500 that I'm restoring and plan to keep for a while. It's very clean and in good shape. It did not run when I bought it and I'm in the process of rebuilding the carbs. Looking forward to getting it on the road! I attached some pictures but not sure if I'm allowed to with only 1 post? Would love to show everyone the bike

Offline Can550

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Re: CB500 from Atlanta
« Reply #1 on: March 22, 2017, 01:13:33 PM »
Welcome to an amazing community of knowledge and help.

Offline calj737

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Re: CB500 from Atlanta
« Reply #2 on: March 22, 2017, 02:10:41 PM »
Pretty. Re-use the stock brass! Clean them well and thoroughly. Ditch the aftermarket rebuild kits except for o-rings and gaskets.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline philwill

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Re: CB500 from Atlanta
« Reply #3 on: March 22, 2017, 11:45:23 PM »
Pretty. Re-use the stock brass! Clean them well and thoroughly. Ditch the aftermarket rebuild kits except for o-rings and gaskets.

I already put in the new brass jets from the K&L kit. Would you recommend swapping back to the original? Carbs are still off the bike so its hardly any work. I just figured the new stuff is all nice and clean.

Offline calj737

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Re: CB500 from Atlanta
« Reply #4 on: March 23, 2017, 04:18:58 AM »
Yes, I would. You will benefit greatly from it later.

Aftermarket brass while new, is not really close enough in many tolerances to the stock brass. So performance issues abound with aftermarket brass. Its just a simplicity and reliability thing.
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline b52bombardier1

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Re: CB500 from Atlanta
« Reply #5 on: March 23, 2017, 04:44:34 AM »
+1 to Cal. I initially did not follow this advice and endured the agony of removing and installing those CB500 carbs several times.

You will be much happier cleaning the original Keihin brass and reinstalling it rather than anything in the aftermarket kit.

Rick

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1971 School Bus Yellow Aermacchi H-D Sprint 350
1972 Candy Yellow CL100 K2
1972 Candy Jet Green Honda CB500
1973 Mighty Green ST90 K0
1974 Mars Orange CT90 K5
1975 Topaz Orange ST90 K2
1976 Shiny Orange CT90
2006 Honda Foreman 500 (restored)