Hi JKMike,
This Rancher looks to be from around the mid eighties .
1755/170 had the 30" deck; the 1755/178 (38") had the dual-rotor deck.
The engine cowl should have some numbers on the front or side .
https://www.outdoorking-forum.com.a...537/re-rover-rancher-brochure-c1985.htmlhttps://www.outdoorking-forum.com.a...re-rover-rancher-transmission-surge.htmlThe key can be made or bought or use a small screw driver and turn the ignition on. From memory I think that model is
just a universal key.(without looking at the lock)
If there is no spark with the plug body earthed to the motor try another spark plug.
Cheers
Max.