Vintage and Classic Hondas › Repair sources and write-ups. Do not ask questions here.

Race Cut Transmission, Why? or Why Not?

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

8 messages Options

blk72750

Race Cut Transmission, Why? or Why Not?

Im getting ready to replace the transmission, or at the very least the third gear. Im thinking of just doing the whole transmission depending on cost. Im looking at Cycle x race cut gears 2-4. It says they are under cut(not exactly sure what that means) but it sounds good. I won't be racing just wanna get this bike up to speed quicker. So i figure why not go for it. but what the hell do I know.

peep the link

http://www.cyclexchange.net/Engine%20Parts%20Lower%20End.htm

shinyribs

Re: Race Cut Transmission, Why? or Why Not?

Administrator

Undercutting refers to the dogs. The dogs are ears on the gears that are used to engage them, not the actual working surfaces. With age the dog, which are originally nice, square ears, round off at the edges and allow the gear to pop out. Undercutting is when those ears are not just returned to nice, square edges but they go one further and put a bevel on them causing them to actually interlock. Hope this helps :)

blk72750

Re: Race Cut Transmission, Why? or Why Not?

Thanks ribs, have you ever done any business with cycle exchange.

On Nov 19, 2012, at 5:34 PM, "shinyribs [via Honda CB750'S]" <[hidden email]> wrote:

Undercutting refers to the dogs. The dogs are ears on the gears that are used to engage them, not the actual working surfaces. With age the dog, which are originally nice, square ears, round off at the edges and allow the gear to pop out. Undercutting is when those ears are not just returned to nice, square edges but they go one further and put a bevel on them causing them to actually interlock. Hope this helps :)
Montvale,Virginia
Piute said it best: "wheres my 10mm?"
Hellbilly-"that is a great way to tell if you have come to your senses, when you start drilling random holes in things... "

LukeM-"Scooters rock, especially when they're in posse formation. "

Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
History teaches us that men and nations behave wisely once they have exhausted all other alternatives. ~ Abba Eban

If you reply to this email, your message will be added to the discussion below:
http://honda-cb750-s.456789.n3.nabble.com/Race-Cut-Transmission-Why-or-Why-Not-tp4032361p4032369.html

To unsubscribe from Race Cut Transmission, Why? or Why Not?, click here.
NAML

TOOLS1

Re: Race Cut Transmission, Why? or Why Not?

Administrator

I don't know about Shiny, but I have done a lot of business with Cycle-X. They are great!! They will even answer somewhat stupid questions over the phone.

TOOLS

Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)

blk72750

Re: Race Cut Transmission, Why? or Why Not?

Thats good because Im full of dumb questions. They'll wonder if I even ride by the time they get off the phone with me. The got some cool stuff on their site. Now Im wanting to upgrade the engine to the 849cc. Have you ever done any engine boring or havie it done?

shinyribs

Re: Race Cut Transmission, Why? or Why Not?

Administrator

In reply to this post by TOOLS1

Nope.No personal experience here. I'm too cheap to hire anything done

Lakebum

Re: Race Cut Transmission, Why? or Why Not?

Hey Guys, new to this site. Haven't messed with my 750 in awhile but it is a 890 cc drag bike that has run 10.20's in the day. Had quite a few trannys cut and if you have alot of power a stock tranny will kick out of 2nd gear. Steve

blk72750

Re: Race Cut Transmission, Why? or Why Not?

Thanks Steve, Ive also been thinking of going to 849cc while I have the engine torn apart depending on the cost. About how much you think would run to get to the 849 from the stock engine?