Lawn Boy 10640 20-Inch 6.75-Gross-Torque Briggs & Stratton Gas-Powered Push Lawn Mower
June 5, 2010 by
Filed under Lawn Mowers
- 6.75 GT 675 Series Briggs & Stratton Ready Start Engine
- Push mower
- 20-Inch Steel Cutting Deck
- 3-in-1 to bag, mulch or discharge grass clippings
- Non-CARB compliant; not for sale in California
Amazon.com Product Description
The Lawn-Boy 10640 Walk-Behind Mower is an affordable, quality mower that is lightweight and easy to maneuver. For ease of operation, this push mower features an easy-start system and the option to mulch, bag, or side discharge. For further convenience, large wheels and an adjustable cutting height make mowing a cinch.
10640 Walk-Behind Mower
At a Glance: Maneuvers easily Large wheels move smoothly on uneven ground Adjustable blade… More >>
Lawn Boy 10640 20-Inch 6.75-Gross-Torque Briggs & Stratton Gas-Powered Push Lawn Mower


Lots of holes on deck for parts for and upgrade model, does not have a side discharge as described, single speed fits all, easy to assemble, and as always quickly delivery by Amazon,
I mean even the Mao Xetung lawnmowers at Wally World have plugs in the deck for missing parts and are functioning as described.
The green color is very nice. Lawn Boy must believe that entry level must be less than exceptional and exceptable
Rating: 1 / 5
I originally intended to buy the 10640 and did not need the self propelled feature since I was not going to be in the house very long. When I saw that the self propelled model was only 20 dollars more I was skeptical as to how they can make a self-propelled for so little differnce in cost. I decide to give it a shot and the self-propelled feature worked for about 5 minutes. Very disappointing as I had a whole yard to do and didn’t have to time to run out and exchange it. I ended up pushing it which as you might guess pushing a self propelled model that doesn’t work is a but harder. The mower cut fine untill I got to the back of the house where the grass was a little taller. The mower would clog up and shut off quite frequently. My prior lawn mower was a lawn boy 2 stroke which lasted over 13 years and the motor and self propelled feature were both still funtional. The only reason I gave up on it is that numerous parts have broken on it which made it non-functional and not worth fixing. My prior lawn boy could run over tall grass without stalling, run over twigs, branches and rocks accidently and never a hiccup. I bought this a Home Depot and will be returning it. If I exchange it, I will not get the self propelled model, but I’m not even sure I want the basic model as it seems a bit fragile. Even though I did not buy the 10640, I feel based on the overall quality and what I am used to in my old Lawn Boy that this model only rates one star.
Rating: 1 / 5
I purchased this two days ago and last night I decided to put it together. Before I even put the oil and gas into it, I decided to push it down the driveway. The thing is terribly aligned and in about 25 feet it drifts 2-4 feet to the left. I checked to see if all the wheels were rotating evenly (they were) and to see if they were off balance (they weren’t) and I also checked to see if one of the wheels happened to be set at a different height than the others (they werent). This is going back to the store (to probably get the same model since I know how good Lawn Boys are) But this is very frustrating.
Rating: 2 / 5
The mower itself is excellent, but… It appeared to be well packed, with no obvious damage to the carton on the outside, but it had clearly been stored (or even dropped) on it’s end.
This was obvious from the way the mower was crushing the cardboard that is supposed to keep it in place inside the carton.
The result was that the two levers that are used to adjust height on the back wheels were bent, and the plastic cover supposed to slide over them was broken on one side.
The instruction booklet that accompanies the mower is less than clear also. Apart from the statutory garbage that clutters the pages, the book appears to indicate that there is a button to prime the motor before starting. There isn’t, and none is needed. It starts very well – all 3 times I have used it.
While it’s a 20″ mower, smaller and lighter than the 22″ it replaced, I don’t notice a significant difference – except that it is lighter, quieter, and it does a nice job.
Rating: 2 / 5
Watch Video Here: http://www.amazon.com/review/R3K513XYZ8UI52 I was so excited by the easy set up, I decided to make a quick video. You can’t go wrong with this mower. I bought mine at Home Depot.
Rating: 5 / 5