Hello, I purchased a new Honda HRX21K6VKA mower on 10-15-2022 via the local Honolulu Hawaii dealer. The dealer prepped it for delivery and filled the engine oil up just between the full and add line. When I received the mower the 12oz bottle of engine oil Honda includes with every new mower for the initial fill was still full. I have used this mower for about 10 hours total over the last 6 months before the engine quit running in April 2023. I took it back to the dealer and after a week they said "it looks like your mower ran low on oil" and would not repair it under warranty. This mower has never ran low on oil because I have used half the 12oz full bottle supplied when I purchase it to keep it topped off on 3 separate occasions. It has used a fair amount over 10 hours compared to previous mowers and my current model I purchased while my 6 month old model was being fixed. I complained to American Honda Motor Company who asked me to take it to a different local dealer which I did.
Honda just wrote back and said: "The skilled technicians at Pape' Machinery, Aloha Power Equipment, and Honda have evaluated your mower. Based on the photos and detailed information provided by the dealers upon removing the sparkplug and examining the cylinder walls, found excessive scoring and damage caused by possibly damaged or broken piston rings. Signs of excessive heat are present on the head of the piston. Removal of cylinder head and piston required to confirm piston ring damage.
With this considered, there comes a time when repairs are the responsibility of the owner and not the manufacturer. We realize that repairs are never welcome at any time; however, due information Aloha Power and Pape' Machinery has provided, American Honda must regretfully deny assistance with the repair of your mower."
My yard is 2150sq ft and flat, it takes me 45-50 minutes to mow it every other week. Now I am thinking the wrong motor oil might have been used by the dealer for the initial fill or I simply bought a defective engine. Any ideas?
Thanks
Damon