FWIW, I did not find this to work. I had been having problems with delayed shifting into reverse (whizzing, clanking and finally clunking into gear) and followed the instructions to the letter to find it would not shift into reverse at all.
So, as reverse gear was my problem I "reversed" Coleman's procedure (no pun intended)--I used reverse as the basis point: altering step 5. to push the shift linkage away from the engine (reverse), and then doing all the rest but placing the shift lever in the reverse position to adjust and reconnect the cable.
This worked, but i still tweaked it a bit to get it as smooth as i wanted. I jacked up the back end (wheels off the ground, parking brake off) and alternated between forward, neutral and reverse, spinning the driver's side back wheel and tweaking the shift cable adjustment until it was obvious each gear (F & R) were ebgaging as positively as they could. Never had a problem with forward, just reverse.
I next started the engine (still jacked up, p-brake off--be CAREFUL HERE!!!) and did some final tweaking (1/4 to 1/2 turn of the adjusting nuts) 'til I was happy. I now have nice, positive shifts into reverse--no whizzing, clanking or clunking...