Finding Performance By Accident

Discussion in 'Performance Mods' started by Dr. J., Dec 18, 2006.

  1. Dr. J.

    Dr. J. Guest

    Today I found a performance improvement by accident. I have three bikes with Kings 80cc (70cc) motors. One bike always seems to have more punch than the others and has a higher (louder) pitch. After looking, I found that the only real difference was that the strongest running bike had a "Sparky" spark plug boot and 20 year silicone Accel Yellow Jacket 7mm solid copper core plug wire. I changed to the same setup on another bike and it gained about 2-3 mph with no other modifications. The new plug boot has very low resistance and the stock plug boot has high resistance to help remove unwanted radio frequencies (RF). Many spark plugs and spark plug caps use resistance to remove RF that interferes with TVs. The plug I prefer and use is the Denso W20SF-U.

    http://www.mfgsupply.com/m/c/24-6710.html
     
    Last edited by a moderator: Dec 15, 2015

  2. mrsaxman99

    mrsaxman99 Guest

    How did you change out the wire from the coil?
     
  3. Butch

    Butch Guest

    You can remove the wire from the CDI by unscrewing it CCW.
     
  4. davidsis

    davidsis Guest

    Plug wire

    Ya, I had a similar experience. I found a 7mm plug wire laying on the side of the road and I unscrewed my old wire and screwed the one I found in where the old one was and I instantly gained power. Lots of it too. I am not sure if the wire is even pluged in correctly because I unscrewed the little nipple on the top of the spark plug, and the plug wire I found seems like it wants that little nipple on the spark plug. Even though It does not have that it seems to rum lots better. I need to get that little nipple off of a old spark plug.
     
  5. davidsis

    davidsis Guest

    mars

    Mars, ya, you just start unscrewing that wire from that little box. There is like a little sheet mettal screw in there that is holding it in.
     
  6. my wire snapped in the middle from the cold and being twistedso it's time I got a new one which I will shorten to fit.
     
  7. davidsis

    davidsis Guest

    Plug wire

    Ya, I think the shorter the distance from that little black box to the spark plug the better. More power from the spark.
     
  8. mrsaxman99

    mrsaxman99 Guest

    does anyone have a link to purchase this wire?
     
  9. I've been wondering about the copper core wire myself. It seems expensive and hard to find for it doesn't jive with today's automotive electronics.
    The automotive wire on my happy time does the job but it's a no brainer that a direct transfer by way of copper will give a better spark than a carbon wire.
    I'm really scratching my head here as to how to get just one wire, It seems only the high performance places have this and won't part out their wire sets that start off at over 100 bucks like it's gold.
    There has to be another way. 5 bucks sounds like a good price for a copper core coil wire. Heck. I'll pay 10 bucks for it.
    (edit) It looks like when I searched e-bay for copper coil wire they have it in different colors and in 10 foot rolls. I may get the red one,and since it's 10 feet and I only need what...6 or 7 inches...I may pass it around. I'll have to see what this month brings me then I'll report on this....unless someone already did this and have some laying around? 5 bucks okay by pay pal for...6 or 7 inches?
     
    Last edited by a moderator: Oct 8, 2007
  10. turbo/chaos

    turbo/chaos Guest

    well what iv been doing is levaing the sparkplug cap o and not removing and going to the auto shop and geting new wires and just cut them and twist them in to the cdi it works and seems to give more of a saprk why well

    lets say here a solid weather prof car plug works better then a some what open stock plug and also to say i dont like the fact of seeing two very slim metal grip things that barley hold up to heat keeping my engine spark going

    just my advice if you fill up to it later
     
  11. Yea,but copper has far less resistance than carbon! Less resistance would mean better spark and probably less strain on the coil I would think,unless I'm missing something.
    Better spark may also mean cleaner spark plug,better burn,more power.Less carbon build up on the combustion chamber and exhaust pipe. Add that to maybe easier on the electricals would mean epic win!
     
  12. atcspaul

    atcspaul Guest

    if someone is getting the wire and wants someone to help just pm me and i will pay pal the money for my piece of wire. i just love more power :p
     
  13. alesterfeind

    alesterfeind Guest

  14. turbo/chaos

    turbo/chaos Guest

    well put it this way iv done 700mil on walmart crud brand oil and have like no
    build up all put pituers up soon but it dose work and holds way better at top end
     
  15. alesterfeind

    alesterfeind Guest

    I just ordered 3 feet of clear, red copper spark plug wire from thehotrodcompany.com, plus a boot kit. I will let everyone know how it turns out. Only cost $20, including shipping. Not bad. That should take care of about 3-4 bikes.
     
  16. Awesome! Those wires look so pretty...yea the clear red ones look cool.
    I need to wait till the end of the month. It may be cheaper to just get the wire then go to a parts store for the boot and clip.
     
  17. I just came back from NAPA. It seems they have this High Temperature 7mm Metallic Cable at 89 cents a foot. Then with the boot and terminal and tax the grand total for my purchase was $3.75!
    Now it's not copper core but it's still a bonafide real wire instead of carbon wire,so it should still give me some more.
    It's dark out so tomorrow I'm gonna test her out!
    ...I love this hobby,man. Driving 6 miles out for a piece of wire....
     

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  18. turbo/chaos

    turbo/chaos Guest

    wow im going to get that man if its metal inside then count me in
     
  19. alesterfeind

    alesterfeind Guest

    Large Filipino: That wire should work fine, and for a good price. I might buy some of that from NAPA and do a comparison between the metal wire and copper wire.
     
  20. I rode it about 20 miles today. I noticed it's idling a whole lot better. The wire before this one was automotive grade coil wire I got for 5 bucks that was 8mm and a pain to screw in. Before the idling had some missing going on. It was so minor as to be almost unnoticable. But now the idle is real smooth.
    The 7mm was real easy to squeeze in the coil. In fact,the wire seemed stiffer and it actually stops when the wire hits bottom instead of keep turning like my carbon wire wanted to do. I think the wire is actually grabbing the screw. Can't get any better with the connection. Also,on the boot end,I left some wire out to bend around so the terminal also has a positive connection.
    Riding it seems the same until I took it on my hill. It's not a very steep hill but it definetly pulled better. You have to have been on this hill a number of times before to know there's a definite difference.
    Overall I'm very happy with my $3.75 performance enhancer. My spark plug before was covered with blackness and wetness. I'll give it some miles to see how the plug looks after.
     
    Last edited by a moderator: Oct 9, 2007
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