Vintage and Classic Hondas

Serious Sputtering w 78 cb750f

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Rockwork
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Serious Sputtering w 78 cb750f

Rockwork
Hi Gang, please help me fix a serious sputtering problem that seems to have coincided with riding in a torrential downpour 2 days ago.

It does not seem to misfire above 3K rpm, but really sputters and hesitates below 2.5K rpm. I've ridden about 12 miles today hoping any moisture might have gotten dried out, but it doesn't seem to have changed.

All suggestions are appreciated. Thanks.
"To strive, to seek, to find, and not to yield."
TOOLS1
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Re: Serious Sputtering w 78 cb750f

TOOLS1
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Check your plug wires, and caps. Some WD-40 might dry them out. If that does not fix it, remove the points cover, and check there for moisture.
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)
Rockwork
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Re: Serious Sputtering w 78 cb750f

Rockwork
I discovered one of the spark plug connectors was loose from the wire. I was able to push it back in so that it may run alright.

I've not replaced the wires or coil before. Are the wires hardwired to the coil, in which case I need to get a new coil? Or am I able to temporarily replace the wire? Can I get a temporary replacement from and auto store, or do I need specific for the 78 cb750?

Thanks.
"To strive, to seek, to find, and not to yield."
TOOLS1
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Re: Serious Sputtering w 78 cb750f

TOOLS1
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Most of the time you can just nip a 1/4 inch off the end of the wire, and screw on a new cap. vintagecb750 a
nd Z1enterprises both carry new NGK caps for the CB 750s.
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)
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