I had a new tire put on the back of my bike awhile back,and noticed a clicking sound that sounded like it was coming from the transfer case,but now it looks like it has a very small leak behind the drive pulley cover, my ? is,if the tech put to much tension in the belt adjustment after reinstalling the rear wheel,will it ruin the seal and bearing behind the drive pulley? Or is this just a typical and easy fix?

Yes , a bearing could be ruined with too much pressure from the belt. But I doubt that is the issue.It would have had to be real tight for a long time. You probably just need to replace the seal back there. Open up the cover , make sure the nut ain't loose (that makes some racket....guess how I know...) , then if you can tell the leak is coming from the seal , release the belt (after breaking that same nut loose) enough to take the belt off the pulley. Check that bearing for up and down play , not back and forth. Pull that pulley off , and you will see that seal right there behind it.

I had to replace everything in there (shaft , pulley......) so all of that stuff was out of the way when I put the seal in. Actually , pulling that Mid shaft is easier than you think. After getting the the pulley side loose , open the chrome cover behind the pipes on the right side. There are one or two (memory...)nuts like the one holding the pulley on that have to broke loose BEFORE removing the belt. Then with the pulley removed , you can pull the mid shaft out with the front gear and chain all in one fair swoop. Then you are left with just the seal on the pulley side. Gently pry it out , gently tap the new one in. And reassemble. Sound worse than it is. Been a little time since I did mine , but I believe that pretty much covers it. If I left something out , someone will correct me.

Bottom line , time consuming , but not terribly hard. BB

Chico, are you still running Yamalube in the transfer case. I was using Mobil 1 and she leaked. I changed back to Yamalube and she hasn't leaked a drop.