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You could run the thing every month or two, drain the tank and add fresh fuel.
Run it for long enough to get new fuel right through the carb etc.

Might be easy to add a drain hose and valve near...

Mine seems to be fine.
I CRC it after using it, and generally be nice to it though.

I got one from a place called "Pressure solutions" in Auckland.

Honda engine, Italian Pump, Proper hose etc.
Cost $1600 but should last a lifetime.