shadow alternator belt

the alternator belt on my shadow broke this morning as I was starting it. Hopefully I am missing something terribly obvious, but it seems impossible to get the new belt around all 3 wheels (two pulleys and 1 smooth wheel). the alternator has been loosened and lowered as much as possible, but the belt will still not reach. it looks like it needs about 2 more inches of slack. any tips on how to do this would be much appreciated!

The belt should go so the backside of the belt is against the smooth pulley

i done many of times to mine its always a pain in the ass to do should be a place to adjust the belt it that makes it alot easier

only advice is make sure everyhting is loose and just keep playing with it.. it can be a b!+ch to get into place but ones its in its good