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I did it for the first time a few weeks ago. Trile and error, lots of error but I took string and sucked it through with the shop vac. I used the lite string to pull a bigger wire through then used that bigger wire to pull the bikes wires through. I tried the nut trick put didn't work very well, the vac worked great EVERYTIME I had to retry. I used Pam spray on the wires. But be careful with how much you spray. We had Pam everywhere and had to mop the garage floor to stand up. Fingers got too slick to hang onto the wires, electric tape, or anything. On one side I had to seperate the wires in equal amounts and pull both set through seperately.
I tied long strings to the end of the bars and sucked the string through the bars with a vacuum cleaner. the nut on the end of the strings sounds like a good method too. Any way you toss, it is a PITA. A lot of people lube up the holes in the bars to help the wires slide in and out easier as well.
Damn, the memories... I am contemplating a new set of bars but this thread has me 'reflecting' on the idea a little more... an afternoon of cussing, grinding, threading, cussing and for what! Well they do look a lot better run internally.
Quick tip... that I assumed everyone would know....
You run the bolt and string though before you install the bars....
If you tie a large washer on one end and the nut on the other you can move the bars around....
It also helps if you stagger the wire ends.... don't try and pull everything in one big clump..
I have done it with the bars on the bike... and with them on the kitchen table.....
IMO it was easier in the Kitchen
Depending on the length of the bars, use 3 to 4 ft of 18g braided wire. Wrap the wire around the end of the wiring harness covering all the connector pins. Then wrap that end with black electrical tape do no connector pins are exposed. Then fish the wire through the bars starting at the grip location to the center of the bars. Pull the wire out. Then feed the wire harness through the bars by pulling on the fish line and pushing the wire harness through the bars. Best if done on the floor over carpet so you can use your feet to hold the bars still.
My bars are 10" straight rise t-bars, let me tell ya, it was a BITCH. I would imagine it would be somewhat easier with apes, as they seem to usually have more curves instead of right angles. At least I hope that is the case, as I plan on putting some 14 or 16 inch apes on at some time or another.
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