Finally got my required parts, a few were not in stock and the Postal Service took a little over two weeks to deliver it to me .
All in all not a difficult job, there's the usual grinding down the throttle plate screws, these came out quickly, I was not looking forward to this, I'ce taken apart about 14 CV carbs from airhead bikes and had a 30% failure rate in getting the screws out.
There is a thin stainless cap that goes over the throttle shaft on the opposite side from where the cable goes on, a bit of a job get it removed, you destroy it removing it .
Getting the bushings out of the throttle body left me wondering how to get them out
You can't push them through into the air steam area, you need to pull them out.
Finally came up with a plan, I threaded the bushing with a tap, got a bolt and some large area washers and managed to quickly remove them
There is a snap ring on the end of the shaft, not a standard clip, I did not have anything proper to get it off everything I had was way too large.
Tried installing the new clip, but damaged it.
Found a 300 count snap ring assortment at Harbor Freight for $4, my snap ring pliers worked on a replacement from this assortment.
Installing the metal cap, wasn't going well, so I put the throttle body in the freezer for a few hours and then used a heat gun to heat the cap to 500 F, slid on with no problems .
With all the learning to do this, it was about 5 hours a bit of a steep learning curve, but having the proper tools and processes, next time I could do this in about 2 hours or so .
I did the right throttle body, so I don't know how much the throttle position sensor on the left throttle body would complicate things .
http://bingcarburetor.com/throttlebodies.html