how can I replace the starter cord on yard machine push mower?

I need to replace mine too. I have a 4HP Yard Machine, 22" high wheel, with the following numbers:

11A-504c062
1B189B20285
on the fuel tank is a sticker with TBS158U1G1RA:EM

I used a 3/8" wrench and removed the sheet metal cover, it looks like I'll need a new spring as well as a rope. I can not find the part numbers.

Can you help?

Ed
June 2006

If you can post the engine model number I can tell you how to get into it.

Rick
May 2006