I have a 1976 1650 cadet, and noticed it was sounding a little different then ususal. Looking into it, if found the lower rubber mounts were practiclly gone, and the motor was up against the frame. I rebuilt the motor in 2006, but used the old mounts. Got new mounts today, but not sure if I have to pull the motor to install, or can I just remove the bolts from the old mounts, jack the motor up, and then replace the mounts? Any suggestions would be appreciated since I want to do this in the next few days. Also, any idea where I could get a service manual for this tractor. I have a Kohler engine manual, but not the actual tractor manual. Appreciate any help.