OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Tecumseh / Kirby Engines Morrison Mini-Hoe: Help to Identify Engine

Hello. Can you please help me identify the model of this engine? It is on a rotary hoe, and I am in New Zealand. The label says Kirby Tecumseh. The only numbers I can see are L1245 on an aluminium (serial number?) plate, and 19-F-151 and ESS at the base of the engine. From what I have read in the forum I think it may be a Tecumseh HK25?
I am trying to find a new governor spring and a fuel tank (old one very rusted).

There are two governor springs listed here:


But I' not sure which is the right one (and they don't look like the one that is currently on the machine: they look too short).
And from the pictures below, it seems that there are some other springs that balance the throttle cable that are missing.
I have cleaned out the carbie, and it runs. I'm proud to own it - I picked it up off the side of the road because the last owner couldn't get it going, and I would like to restore it back to useful life. Any help appreciated. Thank you.