Vintage and Classic Hondas

CB-750K in Florida

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

7 messages Options

Jeff Stock

CB-750K in Florida

Hi,

I have a '78' 750K that runs like crap. I have gone through the carbs and ignition system and it still runs severly cold natured. Losing my patience and need to sell the bike.
Runs like a bat out of hell but the choke needs to be pulled out too keep her running.
Does anyone know if there is a good mechanic in the Jacksonville Florida area that could make this bike run the way it should?

Any help would be greatly appreciated.
jeff

shultz_1978

Re: CB-750K in Florida

Have you checked it for intake leaks? You may have cleaned the carbs, But make sure they are getting fuel.

Simple if some one else can, why can't I
Jamie

TOOLS1

Re: CB-750K in Florida

Administrator

In reply to this post by Jeff Stock

Your pilot jets are plugged. I am betting you did not remove them, for cleaning. I have seen this happen many times with the Keyhole carbs.
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)

shinyribs

Re: CB-750K in Florida

Administrator

DITTO ^^^^^^^ Runs good wide open,cold natured and pulling the choke to keep her running= classic plugged pilot jets. Very,very common cause of what you're describing.

Jeff Stock

Re: CB-750K in Florida

In reply to this post by TOOLS1

Yep Tools1, you are right, I did not remove them.

Thanks man!!!!!

jeff

Jeff Stock

Re: CB-750K in Florida

In reply to this post by shinyribs

Shinyribs,

Sounds EXACTLY what mine is doing. So guess its time to clean those pilot jets.

THANKS GUYS!!!!!

jeff

TOOLS1

Re: CB-750K in Florida

Administrator

Here is a link to a thread that shows how to remove the pressed in pilot jets.
http://honda-cb750-s.456789.n3.nabble.com/Removing-pressed-in-Pilot-Jets-from-Keyhole-carbs-td4036674.html
Also I would suggest finding a shop with a sonic cleaner, and having them sonic clean the carbs. Most shops will clean them for $50.00 +/-
TOOLS