A little help?
Brad,
Do you have an IPL for the 1-52 and the 450? If so, Bob (607 638 9297) should be able to help you out if you give him the part numbers.
If you need either IPL let me know and I can send one; I have an original for the 1-52 I can copy and scan, 450 is already on computer.
OEM fuel lines varied, most were just large O.D. to fill the hole, later versions had a sort of gromment molded right in to the fuel line. Bob may have one of those as well, PN 50097.
Gromment for carburetor/air box should be 57105.
Key for the clutch (450) is 103879
Washer for the clutch (450 with spur sprocket) is 51420.
Nut for the clutch (450) is 103746 - flexloc
Bolt at the tail of the handle is 104435, nut is 10-24 nylock or similar 101191.
Screw for the starter is 10-24x3/4 pan head 104396.
I don't think there are separate part numbers for the screw/nut/washer for the spike, it was always sold as a kit, 61330 for the 5 tooth kit and 61331 for the 4 tooth kit.
Anything you can't find let me know as I may be able to help.
Mark