A chain that is about 6inches longer will be a safe bet. Dealership, Ebay, Rockymountain, something of that nature. Everyone should know where to get a simple chain.
yeah the 112 i came up with was for the drz. i looked it up, and stock for a blaster is 92. with my +3, i am running a 102 length chain. i bought a 105 and cut 3 lengths off