I recently acquired this mower and I can't figure out how old it is or exactly what model. The previous owner gave it a paint job and removed any useful decals. The motor runs fine, but on its inaugural run I was having issues with it going up hill and essentially had to push it. Appears to be the belt between the motor and transmission needs to be replaced as I couldn't get it very tight even after moving the tensioner pulley as far as it would go. Any help any of you wiser gentlemen than me could give would be greatly appreciated so I could get a new belt ordered . Thanks.