Manufacturer ID number HD3Q4E6B
Weed Eater Model number: 130-504
Weed Eater serial number: 073096D 002652
42Inch Cut
Engine hp: 18.5 Twin II
Engine model: 42D 707
Engine type: 1280 01
Engine code: 9603255B

that will not start. It appears that I need to replace the key switch and safety switch on the seat. Could someone help me with the parts information including a location to purchase parts as well as any hints to replacing the parts.

Thanks so much.