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I have a 77 750 and have checked the points which are new, wiring to coil, and the plugs. All are good but still no start. Any ideas?
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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Are you getting spark at the plugs?
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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I am getting spark at plugs. Recharging battery to make sure I have full power
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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Is it backfiring? If it is, you have switched the wires on the points.
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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No backfiring....it won't even fire up. Just the sound of the starter turning. Someone suggested squirting a little gas in each cylinder to see if it runs for a short time suggesting a gas flow problem.
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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Short bursts of starting fluid to see if it starts at all. If not, then you have an ignition or timing issue. If it does, then it is likely a fueling issue.
The ride IS the adventure. The destination is just to get gas!
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Administrator
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Are you getting gas at the carb? Loosen a drain screw, and see if gas comes out.
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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Thanks for the advice! Will try again tomorrow
Phil. 4:13 " I can do all things through Him who strengthens me"
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Little fuel and it fired right up! Must be a fuel problem. Time to trace the fuel path!
Phil. 4:13 " I can do all things through Him who strengthens me"
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Can I loosen the drain screws while the carbs are still mounted on bike? Thought they are in the very bottom
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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That is why they are there, so you can drain the carbs while they are on the bike, for storing, or removing the gas before removing the 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)
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Just so I know ahead of time before I take a look at them do you have a picture or drawing of the location of the screws? Also, is there a fuel filter on these models?
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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Haven't you downloaded the factory service manual from the manuals thread at the top of the home page here? There is a breakdown of the carbs in it that has every part labeled. As for fuel filter, unless someone has added an inline filter to the fuel line, the only filter is the screen in the petcock. But before you start tearing into the carbs, have you checked to see if you have fuel running through the line and petcock? It is rare that the bike would not run at all because of a fuel issue that would plug all four carbs at once. You most likely have a plugged fuel line, or petcock.
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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Administrator
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You'll know the drain screws when you see them. It will be the only screw in the bowl. Not counting the mounting screws,of course.
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Administrator
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Close your petcock and pop the fuel line off the carb rack. Put the end in a cup and turn the petcock on. You should get a full stream of fuel. If ON position does not work, try turning it to reserve. It may be that 1 side is plugged and 1 side isn't. My 78 didn't have an in-tank filter when I got it.
The ride IS the adventure. The destination is just to get gas!
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Thanks! Will try next week as my next few days are booled
Phil. 4:13 " I can do all things through Him who strengthens me"
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 Should I pull the main line off the T or just pull all the lines off?
Phil. 4:13 " I can do all things through Him who strengthens me"
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Administrator
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On a 77, there should only be 1 line to the carbs. You must have an old carb rack with 2 inlets?
If so, disconnect at the tank and plug 1 hose on to it.
The ride IS the adventure. The destination is just to get gas!
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You are correct!
Phil. 4:13 " I can do all things through Him who strengthens me"
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Pulled the peacock off and it was threaded on crooked and also the o-ring was half gone and gunned up inside the reserve area. When draining the tank the gas sure was slow coming out, especially in reserve. Will try cleaning and getting new o-ring. What is the best way to clean throughout the peacock?
Phil. 4:13 " I can do all things through Him who strengthens me"
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