Here is the illustrated parts list for your trimmer:
http://www.klippo.com/ddoc/MCCI/MCCI2002_AAaa/MCCI2002_AAaa__530087918.pdf

The carburetor is a Walbro WA 226. Here is the workshop manual for the carburetor:
http://www.walbro.com/media/21895/WAseries.pdf