Hello All, newbie member here, but not a newbie to old Listers.  I live in the Bahamas where there are still a goodly number of Lister CS units around.  I recently acquired one I have been after for 30 years!  Its a later 8/1 generator set that has been on a private island since brand new.  It was originally owned by the President of Zenith Radio Co. Who owned the island.  After hurricane Dorian flattened this area, the island owner offered the Lister to me, as it was under water for several hours. Stripping it down I found no real issues or corrosion in the engine, so it looks quite savable.  It has a SOM type generator on it, but was not a SOM unit, using a push button starter.

 My question is about the fuel/decompress solenoid, it has a latch that is engaged that holds the decompression pin in, and when triggered it releases the latch, which allows compression and opens the fuel rack.  It appears that this must be reset before each start attempt.  Have any of you seen this arrangement before?  It is definitly not a butchered SOM as there is no similarity in the latch mechanism for the solenoid to the SOM ones.  Also a wiring diagram for the generator end would be helpful, but my box appears complete and was being used this way 20 years ago.