Electrical GURUS! Need expert advice ON COILS!

[VTECturbo-Bike89]

Hi all, I am just wondering, Would I be able to RIG up a external coil from example like a MSD external coil device onto my 66/80 cc motor bike? The type of coils that come with these kits have just your basic power/ground just like an average MSD device.. granted the MSD is 5 times the price of a regular one, I know it produces ALOT MORE spark, and is ALOT more reliable.. now would I be able to use something like this if I was willing to pay for it? would it be OKAY to run because of the higher voltage.. would the magnito be able to fire a coil with that much voltage?? im thinking basically anthing like this.. (I realize that I would have to change to a automotive style spark plug, or maybe find one that is hybrid-ish .. anyways I hope anyone has info on this type of (conversion) if you will..

anyways heres an example of what im interested in running-
http://www.ebay.com/itm/External-Sp...Parts_Accessories&hash=item4d2eee8b19&vxp=mtr

OR MORE LIKELY I WOULD WANT MSD QUALITY--- LIKE THIS!
http://www.ebay.com/itm/MSD-Ignitio...oil-/310384083551?hash=item484455425f&vxp=mtr


Has this been done before? is it possible? is it okay?

One reason why I would like to do it, is because HOW ****ty the spark plug wires are.. I have aleady wasted 2 sets of coils cuz the plug wire is ****.. plus some better spark would be great for the engine im sure.. thanks in advance all

 

[BobbyT]

No it won't work.
Just change the wire end and boot to automotive type on the stock coil.

 

[VTECturbo-Bike89]

Why won't it work

 

[2door]

Why won't it work

When you say, "coil" and are talking about the CDI, or black box the spark plkug wire comes from? It isn't just an ignition coil as you'd find on standard ignition systems. In fact it IS the system. Here is an explanation of the device > http://en.wikipedia.org/wiki/Capacitor_discharge_ignition

You can't replace it with a simple coil.

Tom

 

[Venice Motor Bikes]

GasBike.net sells a really nice aftermarket CDI & motorcycle coil for only $19!!
(it's what I used on my new race bike last week).

 

[dtv5403]

I searched gasbike, but I'm not seeing this coil you speak of.

 

[Edd]

Here you go good sir:

http://www.gasbike.net/high-performance-cdi-super-charge-4117-prd1.html

They also have this one:

http://www.gasbike.net/high-performance-cdi-thunder-4139-prd1.html

I've tested neither of these, only saw them.

 

[rohmell]

Hi all, I am just wondering, Would I be able to RIG up a external coil from example like a MSD external coil device onto my 66/80 cc motor bike?

Yes, but first you need a CDI that uses a separate coil, and you can substitute the MSD for whatever coil comes with the CDI kit.

The stock CDI contains the CDI circuit AND the coil all in the one epoxy-filled box.

 

[vincent713]

No it won't work.
Just change the wire end and boot to automotive type on the stock coil.

How do you change the automotive wire and boot to the stock CDI? Do I cut the stock wire in half and splice in the automotive wire?

 

[Slogger]

How do you change the automotive wire and boot to the stock CDI? Do I cut the stock wire in half and splice in the automotive wire?

The stock wire is threaded onto a spiraled horn barb thing in the CDI. Just twist it (the wire) counterclockwise and it will come right off.
Mine was glued so I had to bust it out of there, no problem though.
Then trim your new lead to the right length and thread it on instead.
Make sure the spike is centered in the spark lead for good contact.

 

[vincent713]

The stock wire is threaded onto a spiraled horn barb thing in the CDI. Just twist it (the wire) counterclockwise and it will come right off.
Mine was glued so I had to bust it out of there, no problem though.
Then trim your new lead to the right length and thread it on instead.
Make sure the spike is centered in the spark lead for good contact.

When you said thread it on instead, do you mean just twist the automotive wire into the CDI and it will stay? Your help is much appreciated.

 

[Slogger]

When you said thread it on instead, do you mean just twist the automotive wire into the CDI and it will stay? Your help is much appreciated.

As the English would say, "quite."
Yeah, just like threading a nut on a bolt. Run it in good.

 

[vincent713]

One of my other motorized bike has an automotive spark plug wire and that thing will start and fire right up even after I have it sitting there for over a year without touching it. The stock wire use small gauge wire and is cheap! This is one mod I think everyone should do. I've been riding electric bicycles for the past 2 years and have neglected my 2 strokers. I miss having the power and speed so I'm building another 2 stroker using a Raleigh SC30.

 

[Slogger]

One of my other motorized bike has an automotive spark plug wire and that thing will start and fire right up even after I have it sitting there for over a year without touching it. The stock wire use small gauge wire and is cheap! This is one mod I think everyone should do. I've been riding electric bicycles for the past 2 years and have neglected my 2 strokers. I miss having the power and speed so I'm building another 2 stroker using a Raleigh SC30.

Well good luck with it. I would like to try an electric sometime myself.

 

[vincent713]

Well good luck with it. I would like to try an electric sometime myself.

Thanks! Electric bicycles are very popular in Europe and Asia and is now getting popular in the USA. It definitely has its advantages over gas motors. What I like most about it is the fact it's eco friendly, no noise or air pollution. I can ride it on bike trails, sidewalks and street with no problems. Perfectly legal and joggers are not annoyed by the noise and air pollution. I can ride it at night and not disturb anyone. I have 2 ebikes myself and they go 20mph which is plenty fast for me when I'm on a trail or sidewalk. If I pedal I can go faster. It has a range of 30 plus miles and I can go even further if I use more of the pedal assist system PAS. I use it mostly for exercising and fly my RC helicopters. Ebikes are not cheap but the place I got my ebikes from have the cheapest price you can find anywhere. Their bikes are good quality, comes with warranty and free shipping. I got the Trail Maker and the Cemoto folding bike so I can take with me to my favorite trails or camping. www.electrobikeworld.com

 

[vincent713]

Hey guys, I need your help, I have completed building my 2 stroke 60CC on my Raleigh SC30 and the motor doesn't seem like it's giving full power. It stutters when I give it full throttle. I have adjusted the needle to the highest and lowest setting and the lowest seems to be worst. I had to take off the black plastic carb housing to make it fit into my limited triangle frame. I did attached the foam and round plastic over the air intake on the carb. I'm stump and can't figure out why I can't get full throttle without stuttering. Any ideas?

 

[Slogger]

I'll try to give you some ideas..
If you didn't mix the gas in the gas tank (instead of the gas can), and if you didn't mix in 16/1 oil, and if your throttle slide moves smoothly all the way up and down, and if you have good fuel delivery to the carb, in a small but steady stream, and your float, needle and seat are all set up right and clean, and your carb is tightly installed on to your manifold, and if the manifold/cylinder mounting surfaces were smooth and flat, with a good gasket between, and if your cylinder head is torqued down right (120 to 140 inch pounds) and if your spark wire is on right making good contact on a good plug gapped from .024 to .026", then I have no idea what could be wrong with it.


Check off this list and try her again, also, the original jets in the NTs are usually very rich, so newbs don't fry their new engines.
Good luck to ya!

 

[vincent713]

Thanks for the tip, I pour some oil inside the gas tank and pour some gas in it but I think I forgot to shake it. The throttle moves and slides very smoothly. Tomorrow I will check the float because I notice gas was leaking out of the bowl. Tighten the carb, gasket and gap my spark plug. I'll see how she goes and will report back. Thanks again!

 

[Slogger]

You probably have an oil fouled float bowl and jet. The needle and seat, too.
Nothing a good rinse won't clear right up.
I'd drain the gas back into the can and shake it up for a couple minutes.

 

[vincent713]

Thanks for the advice Slogger, I will clean the bowl, which setting should I use on the C clamp for the needle?
Also, my motor chain has too much slack. I need to take off 1 link to make it perfect but will not be able to install the master chain link because the hole on the link is too small. If I take 2 links off, that would be too much. I've already raise the chain tensioner all the way up and there are no more wiggle room to shift the motor forward. Any advice will greatly be appreciated.