I have a sears weedwacker 32cc. Model #358-791590. The pulley string on the inside of the motor assembly has broken. My question is how do I get the pulley off in order to replace the string assembly. I have taken out all the bolts from around the casing.

Some require a special tool. But you can be creative and make a tool to do the job. You have to remove the housing and the shaft usually to do this job.