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A very close friend has had an accident and can not work with his hands. He has a 1978 Honda Express Moped - NC50. He would like to have it running for his grandkids. I wish there was as good of a site as this site, for that bike. Alas not much there. I have agreed to try and get it going for the cost of the parts only, and I am looking for anyone who might have some knowledge to help me. It is certainly not easy to find the RIGHT parts for this bike. But if anyone out there can point me in the right direction, or has any kind of experience with this type of bike I would really like some help along the line. I have done all the basic stuff but there is no spark. Got new points but of course they are not correct. Please feel free to email me directly if you can help at all - Thanks so much...
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Administrator
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Get the correct points, and give it another try. If that does not do it, feel free to ask for help here.
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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Seems like all the places that have new points are just like the replacement set that I got. But yes, that should be the first thing to do. I have looked at new coils too, lots of them available for this year, but the original coil has the condenser right with it, none of the replacement coils have the condenser. I have seen one replacement condenser but it is nothing like what the bike is supposed to have on it. Frustrating!!
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Administrator
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The condenser does not need to be attached/made into the coil. Any (I think this bike is 6 volt) condenser will work. Just attache it to the wire that goes from the coil to the points. As for the points, any will do as long as they will mount to the backing plate.
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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Ok Tools - this is good info. 6V is correct. There is a set of points and condenser for sale on ebay. I think I will email the seller and if the points are right then I will make that purchase. In my experience, coils don't usually fail do they? Im thinking the condenser would be a more likely culprit. But then again the coil seems to be the easiest to find. Thanks.
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Administrator
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I tried doing a parts search for the points/condenser on powersedge.com and could not find them in the parts fiche. Could this bike have a magneto style ignition? Also the condenser does not actually have anything to do with the bike running, or not. What it does is keep the points from burning up.
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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Interesting! I found another set of points that should, I say should fit, on ebay and ordered them. Next week I will have them. Supposedly the 77-8-9 all had the same ignition set up, then changed in 80. If there is no spark with the new points it will be time for plan B - whatever that is!
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Ok Tools and all interested parties : I got some help from Thomas Andrews at Classic Cycle Parts. I sent him my old points and he had to dig around but he found an exact match! He said my NC50 has a "Denso" ignition, not Hitachi, not Mitsuba like most of the other NC50s. Part number is 30202-131-004. So those are on. Now then, looking at the manual that I downloaded, I should have continuity between the spark plug wire and the "hot" or really the only wire going into the coil. But I do not have continuity there. Does that mean bad coil or am I missing something? Thanks ALL, JON
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Administrator
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You should have continuity between the (+) and (-) wires on the coil, and I think the (-) and the coil wire (but could be (+) and coil wire.  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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OK I think I have continuity at those places. I will put things back together and see if there is any spark left in the old flame. Thanks - JON
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I had contacted the seller of a coil on ebay and he says the coils are very seldom the problem. He was right. Thanks to him , and to you Tools - I now have spark. Looks like I need a new end for the plug wire but other than that I am in business. Thanks again - JON
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