Spark Plug Wires

Does anybody know if you can replace the wires on the XJ700.... it looks to be a sealed wire coil system. i was trying to find out if i could swap out to a new 7mm wire. i havnt found anything in the way of couplers so far. i am sure i am not the first one to look at doing this.

 

You can get JOINERS

 

there is a way it is a bit involved but I can't find the link any longer. I think Rickomatic has a write up on it as well. You have to slice open the coil case remove the old isntall the new and epoxy up the cases.

 

at $15 a pop for the joiners i think it can wait i was hoping there was a cheaper soloution.

 

That's AUS dollars, you will get them for half that US.

 

I checked in the DIY section for the coil repair post, and the link is broken. Can anyone get the correct link? I'm hoping to get one coil rebuilt before I do much more riding. I know one cylinder isn't firing until things get warmed up so I'm hoping the coil wire repair will fix that problem for me.

 

http://www.xjbikes.com/Forums/viewtopic/t=15981.html
you could try this, it's not the whole wire but 95% of it

 

hmmm interesting....

 

Midnight,

It can be done I did it this past weekend. it does not lool to pretty and it hasn't rained yet for me to test if it actually worked. I took and cut the coils open where the wires go in. I used a die grinder with a thin bit it still looked rough. pulled out the old wires and installed the new copper core 7mm wires. Wow they go in tight and fight you the whole way. I then epoxied the peices I cut off back on with an epoxy made for plastic. once all that was dry I dipped them in plasti-dip let it dry and dipped them again to completely incase them and seal them from moisture. It runs well but haven't tested wet yet as that is where I had problems.

 

I've got pictures of how I milled out my coils but I can't post them here. Anyone want to host them?

 

any way to send them to me..... i want to do the coil split method...... i would love to have pictures even of nothing more than the final cut away

 

http://xjbikes.com/Forums/viewtopic/t=1 ... wires.html


I did this recently.. made a nice difference.. I didnt have a prong in one side of each coil, so it was just wires, so I soldered everything and havent had a problem since. I took the resistors out of the plug boots as well

 

I searched for hours and couldn't find that thread so I did it from memory it would have been a little cleaner if I followed that method i cut all the way to the end but left 60% of hte groove the wires were a PITA to push back onto the electrode but well worth it.

 

thanks schmauster i got mine installed and it looks sharp. no soldering required .. just like the picts ..... 7mm Accel copper installled. is it reallt worth pulling the resistors? are we talking some modest / noticeable HP gain? or maybe some other advantages? i see the resistor boots as being the fire control and once removed i will be re-tuning my mix again.

 

I managed to pull the old cable out of the coils on my xj700 and was able to put the new Dyna cables (from Chacal) back in without any alterations using a small amount of KY Jelly which I happened to have handy. It took some time but it is possible to do it without a dremel, at least on an 85 xj700.

Not makin' any recommendations, just sayin's all...

 

I tend to use Astro Glide.

 

i think you guys got the rooms of your house mixed up... please dont verify by telling us how well the dielectric grease or bearing grease worked in the other room.

now setting that aside.... i had thought of the same thing before cutting the second coil open so i inserted the new wire then performed the incision. what i found was that the contact was shifted off center... it kinda made contact, but i wanted it to be exactly in the center of the new wire to provide the best contact as possible and left it unsoldered for the replcaeability factor. the other thing i noticed was that on the #2 connection pin it had some rust... kinda hard to clean a needle inside of a 3.5in deep hole thats 6 - 8mm in diameter and know its clean when your done. when re-sealing with the epoxy it prevents the future rust on the contacts.

 

What was the reason for going to non-resistor boots? Did you switch to resistor plugs instead?

Just a note: the resistors aren't there just to reduce electrical noise, they also set the "burn time" of the spark. No resistors means a spark that will have higher current but much shorter duration.

 

yea i left mine in for now.... it looks like an easy bypass for those looking to tweak. i need a few more tools before i try that..i want to measure block temp, exhaust temp etc when i test it to see any other modest changes in temperature incerase. here are a few links for those interested in this. just keep in mind that when your burning hot on a wasted spark system you need to run a rich mix. and dont expect a long plug life.

http://www.motorcycleproject.com/motorc ... etech.html

http://www.kamware.com/vtr1000f/resistor1.htm