Help identifying Lawn Boy

I've got a LB with a blank model/serial number tag that I need help identifying. I need a shop manual for it, but it's way different than my other LB (F). It's got a problem where the only way the manual starter will engage is when you pull briskly. If you ease it out, it never engages. If any other pictures would help, please let me know.

Thank you,

Frank--KA9JDSC03931b.JPGDSC03930b.JPGDSC03929b.JPGDSC03926b.JPGDSC03927b.JPGDSC03932b.JPGDSC03933b.JPG

Attached Images

• DSC03931b.JPG (315.2 KB)
• DSC03930b.JPG (289.1 KB)
• DSC03929b.JPG (323.4 KB)
• DSC03926b.JPG (312.8 KB)
• DSC03927b.JPG (321.7 KB)
• DSC03932b.JPG (444.0 KB)
• DSC03933b.JPG (298.8 KB)