I don't have the directions in front of me, but I'll try to describe the key issues.
1. The left side gets the clutch pivot bolt that has the screw protruding on top. The right side gets the brake pivot bolt that has the screw hole on top. The directions mention that correctly, but make sure to put the right one in the right place. The brake pivot bolt might have to be screwed in through the bottom hole of the brake bracket, it wouldn't just slide through on mine.
2. The left clutch side gets the "spacer" on the bottom of the pivot bolt, as the directions say. BUT.. they tell you to put the washer "G" under the spacer, which you get 5 or 6 of. It does NOT fit. You also get one smaller washer, I think it's "H", which WILL fit under the clutch, so that's the one I used. So on goes the little washer, then the spacer, then you reuse the nut from the original pivot bolt. The right brake side does not get a spacer, just reuse the nut from the original right pivot bolt.
3. Do NOT take the screw out all the way out of the handlebar weights. Unscrew it pretty loose, but pull out the whole assembly out at once. My right one just came right out, my left one was jammed in there. I actually had to take the screw out all the way on the left side, and then used just the screw to pull out the little rubber end piece that was wedged in the handlebars. Luckily it didn't fall into the handlebars like some people report.
4. Putting on the actual guards is pretty simple.
The left side goes onto the pivot bolt on both the top and the bottom. You put one of the large washers "G" on top of the guard and then use the little top screw to tighten it. The bottom gets a washer "G" under the guard and then one over the guard. finally tightened with the nut "M" that's provided in the kit but not mentioned in the directions.
The right guard is a bit trickier. The top goes on top of the pivot bolt and you secure it with the screw provided. The bottom fits over the SIDE of the original pivot bolt nut, so you should make sure it pops on it cleanly, you may have to knock it into place as it's pretty tight. You then put a washer "G" over the bottom and use the supplied nut "M" to tighten that down.
I'm at work so I don't have the bike or the directions in front of me, but I believe that covers the key pain points. The references to the big "G" washers and the small "H" washer were wrong, and the screws "M" were not mentioned at all, but seen in pictures.
Good luck, and let me know if I remembered something wrong, or even did something wrong