Question
 

So I changed to a -1 front sprocket, Guy at local Motorcycle Shop said he wouldnt worry about changing chain. SO I didnt.

I put it all back together and was tightening up the chain and it went a 1/8 inch past replace chain spot. IS this OK?

2005 F4i

i don't know for sure if it's ok...but you'll definitely run out of adjustment quicker

what was it at before?
If it was good before then it is now you just have less adjustment to play with.

lol
its fine, but you will run out of adjustment sooner, when u start changin stuff away from stock, all the stock indicators will no longer work-that means youll have to ignore them

Yep.
Since you went -1 up front, you made the sprocket smaller. When you do this, you need less chain to cover it. Since the front sprocket is fixed, the rear has to move back to take up the slack of the excess chain you've created.
If you went the other way, (like +1 on the front)... you would have to move the rear wheel forward and your chain would be shagged without ever getting to the "replace" mark.
Those marks are pretty much worthless, imo, and should never be used to judge your chain. If you put on a brand new chain tomorrow that was 2 links too big, it wouldn't mean that it needed replaced.

As a rule of thumb.....if you suspect your chain may be done, grab it at the very back of the rear sprocket (far right) and pull on it. If the chain comes up off the sprocket enough to show light through the "U" of the teeth, it should be replaced.

Thanks, one more thing. I took it for a ride out my road and back. It did fine other than a noise coming from the front sprocket area, like a chain rubbing or something.

I took it back to the house and took it apart again and nothing was rubbing. So I pushed the bike forward and it made a unusual noise when the chain first started to grab the sprocket, but after that it didnt make it anymore if I kept pushing it.

then its prolly your mind. lol jk but just make sure you put it on right and tightend the nut down, itll be fine, its a new sproket on a used chain, itll make a little noise bc the teeth arent matched to the links of the chain