Motorcycle Repair: CB77 Valve question, valve question, genuine honda

Question
I imagine not carrying parts is a load off, eh? : ) I will heed your advise and save the springs for if I ever find a set of racing valves.

 A second question; I live in Santa Fe. We live at 7000 feet and it's rather dry. How should I jet my carberatuers? I'm running stock headers with a Dunstall aftermarket exhaust, 27 inches in length?

 Again, thanks. Your advise is always been invalueble to me. I've lost your restoration guides during a move and will need new copies, either that or a new CD. Do you still have a website to buy these items?

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Followup To
Question -
 I just finished an engine build for a 1967 Honda CB77. I used NOS Precision Racing Valve Springs and an unknown aftermarket valve set. About the third run of the bike, one of the inlet valves broke at the top near the keeper.
  I'm going to buy a new genuine Honda set of valves. The question is do you think it's ok to use these racing valve springs with the Honda valves? The valve was pretty badly bent and there's a VERY small spot on top of the piston, an ART 3mm over piece. Do you think that's ok to continue to use?
  Thanks. I also know you sell parts, as I've bought some from you. : ) Think you have any valve sets you want to part with?
Answer -
Val, I don't carry any parts now that I live in Hawaii. Check with Ed Moore at emo@ktc.com for parts, especially engine items. You need to check the spring tension to see just how strong they are. Unless you are racing the bike, I would just use a fresh set of stock springs or YB springs if you can find them. Sounds like the racing springs you have are too stiff for anything less than racing quality valves.
Get the piston measured correctly at a machine shop to see if there is any deformation of the piston from the impact.
It will probably be okay to reuse, based on what you have told me.

Bill Silver

Answer
Val, I can make CDs of the retoration guide info for you at any time. I am no longer producing the paper versions, but they can be ordered from the www.honda305.com site.
Otherwise, I can take PAYPAL payment for the CDs. $45 w/o engine guide or $60 with, delivered. Both are expanded versions of the earlier works, plus have parts manuals, copies of owner's manuals and lots of other goodies that I can't print out now.

I jetted my CYP77 around 125-130 mains and dropped the needle one or two notches. That was with stock air cleaners and mufflers, however.

Bill