Lawn Boy 10640 20-Inch 6.75-Gross-Torque Briggs & Stratton Gas-Powered Push Lawn Mower
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- 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
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|Manufacturer Warranty Description||3 year Power Train, 3 year Tru-Start, 2 Year Full|
|Package Height||17 x 22.5 x 40.5 inches|
|Shipping Weight||79 pounds|
The easy-start system lets you start the engine with one quick pull--no priming.
The Lawn-Boy 10640 is ready to mulch,
bag, or side discharge to suit your needs.
Thanks to its ReadyStart Briggs and Stratton 675 series engine, you won't have to worry about priming or operating the choke on the Lawn-Boy 10640. Simply start the engine with one quick pull, and you're ready to mow.
Large 7-inch front wheels and 8-inch rear wheels help the Lawn-Boy 10640 run smoothly, easily gliding around turns and over obstacles in your yard.
Versatile Cutting System Meets Your Needs
The Lawn-Boy 10640 is ready to mulch, bag, or side discharge, depending on your needs. Without the bag, the mower will mulch the grass and leaf clippings back into your lawn. Alternatively, you can collect the grass and leaf clippings directly into the bag, leaving your lawn neat and clean.
For further convenience, the height of the blades is easily adjustable by setting the oversized handle grips to one of the large notches on each wheel. There are 7 different heights available between 1 and 4 inches, so you'll be sure to find the perfect setting for your lawn.
Designed with You in Mind
Built with you in mind, the Lawn-Boy 10640 has plenty of user-friendly features. To start, a one-piece handle increases maneuverability, and the lightweight, 20-inch steel cutting deck is perfect for mowing in tight areas.
Additionally, the top-mounted bagging system makes it easy to empty and replace the bag by simply inserting or removing the grass bag handle from the two notches at the base of the mower handle.
The Lawn-Boy 10640 Walk-Behind Mower is guaranteed to start on one or two pulls for three years, or it will be fixed for free. It is also backed by a two-year No-Worry Warranty that offers full coverage of materials, components, and workmanship. The maintenance-free engine is also covered by a three-year Power Train Warranty.
What's in the Box
Lawn-Boy 10640 Walk-Behind Mower and oil.
From the Manufacturer
Top Customer Reviews
without any tools. filled crankcase with 20 oz. of included oil and put in some gas and it fired up on first pull. no choke or priming bulb nothing. just pull and it starts. awesome briggs motor. double horsepower of my old craftsman and half the sound. the exhaust pipe actually muffles sound. not like those tuna fish cans on the side of most motors. mower is very light and easily manuverable. just what i wanted. something simple. so it has a few holes on the deck used on the more expensive mower. BIG DEAL! it just means to me i got the same quality steel deck the better model gets.doesn't have any bells and whistles i don't need and without $500 price tag. cut so cleanly and evenly. sucked up all clippings. like a vacuum for my lawn. even some twigs i thought were just going flung off to the side were sucked up and munched into the bag. the chubby wheels floated over grass and i was done in a snap. wished i had more lawn.the clipping bag comes off easily and empties without making a mess. plus its a cool kawasaki ninja green! so happy i didn't spend so much more on the flashy honda. it just looks and feels like quality. highly recommended to my jealous neighbor. to you too
The Lawnboy was simple to set up. Attach the handle and add oil and gas. It started on the first pull out of the box! It is very quite and does a good job mulching.
Note that the side discharge chute is not included in the box. They include a card that says that most purchasers don't use it, so they send it free on request. Just mail in the enclosed card or check the side discharge chute request in the on-line registration at their website.
I was able to request my chute, but otherwise their web site is pretty poor. The dealer locater doesn't work (or they don't know they sell mowers in Texas). Also the registration application doesn't work - apparently today April 19, 2009 doesn't exist on planet Lawnboy. So I had better send in my chute request post card too.
- Jointless, one-piece handle. Past push mowers have screws halfway up that loosen and make the mower harder to maneuver. The one piece handle makes this nice.
- two pull start guarantee, or they say they'll fix it.
- Briggs and Stratton engine.
- Jointless handle really transmits vibration. I'd buy the "Good Vibrations" anti-vibration grip. Your hands may not tingle as much.
Also note the complaint that there is no side discharge, there's a card to get one if you want it. Also, the complaint that there are extra holes in the deck... just means it's the same deck that they use for their better models; big deal, it's painted.
On the opposite end of the spectrum you have high end push mowers from Toro (their Super Recycling series) and Honda. Great mowers - built well, perform well, will last for many years. But, the push models they make are only available from dealers (not sold at the big-box stores) so you're looking at some big bucks.
The Lawn Boy is a perfect compromise. No, it's not as well-built as a mower costing twice as much, but it is much nicer than what you'd find at a big box store. Excellent engine -- the B&S Ready Start is just that: no priming, no choke, just pull and go. The wheel assembly is also excellent, with the same wide, easy turn wheels found on the higher end Lawn Boys. That is especially nice in a push mower since you're doing all the pushing!
The bag is not as nice as the higher end Lawn Boys that have a larger opening and a one-hand design. Still, this works well. The bag is of decent quality, but on the small side. That's not a bad thing in a push mower, however, since again, you're doing all the pushing!
Cut height goes up to 4 inches. Rare to see that in a mower in this price range. The one-piece handle is sturdy, but you may want to add a piece of foam if you're using the mower for a long period of time since that will cut down or eliminate "numb hand" from the vibration.
Performance is great. No problems getting through tall grass - mulched right through it with no visible clumps.Read more ›
My old mower, the famous, cheap red one from the discount store, was a 4.5 HP mulching mower that always bogged down in thick grass. I'm surprised at how great a difference the 6.5 HP engine makes! The Lawnboy doesn't seem to be fazed at all by the taller grass. (I mowed on the highest setting, because my grass was about 8" tall by the time my mower arrived!)
It mulched so well, my wife asked if I had mowed it twice. And unlike my old mower, it did my whole yard on 1 tank of gas. (The old mower required TWO full tanks if the grass was tall.)
I've only used it once, but I'm VERY impressed so far!
UPDATE!! Two months later, I'm still very happy with this lawn mower. It remains by far the easiest to start of any mower I have ever owned. (And frankly, I can't overemphasize this point, it's really that good.)
I'm far less impressed by the mulching capability than I was initially, and have switched to the bag. I've always avoided bags in the past, but somehow this seems easier than I remembered bags being.
The bottom line: If I had to buy a new mower today, I'd buy this one again in a heartbeat.
ANOTHER UPDATE!! OK, so it's now nearly two years later, and I just got the mower out of the shed to begin a new mowing season. I left about a half a tank of gas in it last fall (treated with a gas stabilizer.) Would it start? Yes it did, though it took me 3 pulls to start it this time. I think that's the worst it ever did!
I wondered if my review was still here, and if the mower was still available. I see it is, so I thought I'd cap off my review with a final report. It's definitely the best lawn mower I ever had.
Most Recent Customer Reviews
Great mower. Summer of 2016 will be in its six year of use. I have had zero problems. The mower starts on the first or second pull all of the time. Light weight, easy to maneuver. Read morePublished 2 months ago by Chris
I've had this mower for almost seven years now. It has never failed me. unfortunately the deck has rusted and disintegrated. Read morePublished 4 months ago by N. Paul
Has done a good job for 2 years now. I only wish the bag catcher was bigger.Published 22 months ago by Bob L.
I like the mower, but there is an inherent problem with the grass chute. It clogs constantly when using the bagger. Read morePublished on June 16, 2012 by David P
Lawn Boy 10640 20-Inch 6.75-Gross-Torque Briggs & Stratton Gas-Powered Push Lawn Mower
The mower doesn't start on the first pull, as advertised. Read more
The mower arrived on time. Because 4-cycle oil was included, I was able to assemble the mower and was ready to mow in a few minutes.Published on June 5, 2011 by DavidM
One pull. Just one pull and it starts. Does a great job of cutting and mulching and the cut is small enough to get around various yard impediments. Read morePublished on May 21, 2011 by SusieQ12757
Received my mower via UPS. They are notoriously rough, but proper packaging could've prevented the issues I had. Read morePublished on May 20, 2011 by A. Gravely
This lawn mower met my expectations of the purchase. It is a light, simple setup with plenty of power. Starts every time so far. Read morePublished on May 15, 2011 by Sox