Honda Lawn Mower Service - Blade Sharpening, Spark Plug Change, Oil Change, Air Filter Change

In this video I will do a complete service on my Honda Lawn Mower. If you want to skip ahead to a particular part of the video, here is the index:
1:44 - Blade Sharpening (also helpful for blade change)
19:43 - Spark Plug Change
22:52 - Oil Change
28:42 - Air Filter Change
30:57 - Closing Remarks

Honda Mower Model HRN 216VKAA

Blades:14 mm socket, with 3/8” extension to clear mower deck
Torque: 40 lb-ft., 3/8” torque wrench
Blade, Rotary Upper: 72531-VR8-M00 (those last two are zeros, not the letter “o”)
This upper blade is more flat that the lower blade.
Blade, Rotary: 72511-VR8-M00

Spark Plug: Allow engine to cool
Torque: 14 lb.-ft.
NGK BPR5ES (13/16” socket)
Honda 98079-55846
O.7-0.8 mm gap
Amazon link for 2-pack:
https://www.amazon.com/Genuine-Honda-98079-55846-Spark-BPR5ES/dp/B01CXC8IK6/ref=sr_1_3?crid=WS84AZFWITJJ&keywords=honda+98079-55846&qid=1676171792&sprefix=honda+98079-55846%2Caps%2C141&sr=8-3

Oil: 10W-30. 12 oz.

Air filter: 17211-Z8B-901
Amazon link:
https://www.amazon.com/gp/product/B00JD2GGM2/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1