My answer is absolutely YES.
The aim is simply to protect the engine, it is a valued piece of kit, and needs to be reliable.
Here´s what I do when I leave my outboard for more than a few months. Most guidance I will offer follows standard accepted practice, some is my own initiative.
Break it down into the various parts -
Run the engine to its normal operating temp, then squirt fogging oil into the carb intake yoiuwill probably have to remove the intake cover. continue this until the enginie chokes up and dies.
Then, when cool enough to touch, Drain the carbs completely. remove the plugs, squirt fogging oil into the cylinders one at a time - about a 5 to 10 second spray in each whilst operating the starter in short bursts or pulling the unit over by hand. Replace the plugs.
Lubricate all parts of the powerhead and protect with a light oil spray. Spray electrical contact cleaner in all electrical connections
Lubricate all grease points and any area that moves, spray light oil over the leg area and wipe to leave a glossy but not soggy film.
remove prop, grease splines and replace prop and securing nuts, pins etc.
Drain oil, refill.
Drain fuel hose, drain tank, discard old fuel. try not to reuse.
If you have a battery, take it off the boat and store with occasional trickle charge.
Basically, protect the inside of the unit with fogging oil. everything that moves, grease or oil it, everything that doesnt, oil and wipe, or polish if you are so inclined
Try not to have a cover that is too tight, allow air to circulate but keep water out.
next time you use it, start it on the old plugs, when the smoke has cleared, renew the plugs.
There are thousands of dubious and slightly knackered unreliable engines around, and it is reckoned that around 75 percent of failures are simply due to lack of mantainance, nothing else.
At the end of the day its up to you