8mm yellow silicone hose

[mason79]

thank you, i can see now what i have to prepare myself for, yes those green wires do match your bike...

btw did you cut the wired equal lenght, stock are shorter in the middle right?

[TopCatGr58]

Hey Mason,

Yeah, I noticed that the OEM's were shorter for the 2-3 cylinders, to keep the wires from winding around I guess?

To keep the power/resistance the same, I cut them all the same length, and allowed a little extra, so that later IF I need to cut some off of the end for corrosion removal, I won't have to replace the wires if I cut them to just barely the right length!?

I oopsed a little on attaching the clips for the primary power and trigger leads, had the wrong length and wrong position. The wires fit into the clips from the side, so they are directional. SO... you may want to do a test fitting to see how the wires need to go. I also bent the tangs a little to keep them from hitting frame.

Also, the bracket that holds the plastic frame cover that is under the front of the tank, won't fit without some extra modification, I just didn't take the time to cut away the area that was preventing the coils from fitting with it! Instead of bolting it there, I may just weld a separate bracket instead!?
T.C.

[mason79]

yes, i was able to bolt them in without the brackets, don't understand why you needed to do that? tight fit, but so were the stock ones...

still runs like crap, carbs...

[TopCatGr58]

Mason,
Mine is an 81, and perhaps the coils are different in size, length vs. the 79? The new coils mounting holes were a touch too far apart to be able to just bolt on, hence my reaming out one coil, also lots of wires in that area, didn't like the high tension lead pushing up against the harness so much, so that's why I wanted to mount one horizontally. Glad you were able to get them in without much problem. Sorry it didn't fix your problem, carbs are fun aren't they!
T.C.

[mason79]

fyi, i contacted mikes xs and their answer was the high output coils produced 35,000 volts, so if true is is a great bang for the buck not just a replacement but upgrade!

[skids]

The 81 OEM coils are made for not using ballast resistors, right? So if those work on the 81, the will also work on the earlier models, TC??? (I don't get it)

Originally posted by TopCatGr58
Mason,
Mine is an 81, and perhaps the coils are different in size, length vs. the 79?

[TopCatGr58]

Hey Skids,

Yes they will work on the 78-80 series, but you have to bypass the resistor or they won't get enough voltage! I was just stating about the physical size and where they mount on the frame, it's very tight in there, the MikesXS ones were a tad longer, and were bumping metal supports where the bolts run thru the frame.

Mason had stated that he was able to directly bolt them on using the holes already on the coils, I had to ream one of mine out a bit because the hole to hole distance was shorter on the bike than in the coil.
T.C.

PS, thanks Mason for that KV value info, I'll have to remember that and post it in with the tech tip.....when I finish it!

[mason79]

yes gents, to verbatim 35,000 PLUS volts and i noticed after i ordered some stuff their prices went up across the board

[TopCatGr58]

Update on MikesXS coils!

Hey Folks,

Been busy lately. I finally finished my third luggage rack/box mod along with the extra LED brake light mod, and my bike was due for inspection this month, so I put the carbs, Pods, gas tank back on....had removed for Welding!

Had already done the coils/wires. Filled with gas, and rolled out to driveway this evening. Pushed the starter and Godzilla Roared to life like it had never been apart! Took it out for a nice little run for a couple of miles down the local highway, revved with NO problem to 9krpm, and 90+mph in 4th in a matter of seconds!

SO...the MikesXS coils are a great inexpensive way to replace your old tired worn OEM coils and get very good power vs. the $$ Accel or Dyna coils! 2 Thumbs UP!
T.C.