I hit a small post stump and now when the blades are off the engine revs up and vibrates. (Honda HRR216 series) : r/lawnmowers
Honda Harmony II HRR216 Quadra Cut Lawn Mower With Rear Bagger, Full of Fuel, Blades Sharpened, New Air Cleaner, Starts First Pull, High Quality Honda Motor, 20" Cut Auction | 1BID
Honda HRR216 Harmony II Lawn Mower with the Quadra Cut System – Craigslist Find - August 7, 2014 - YouTube
2) Honda HRR2167PDA push mowers in Hays, KS | Item DF5613 sold | Purple Wave
Honda Quadra Cut System Harmony 2 HRZ216 Easy Start Push Mower For Sale | MarkNet Alliance
Inverurie Garden Machinery
Buyer's Guide to Honda HRR Series Lawn Mowers - Weingartz