Before testing this PowerSmart 21″ B&S 140cc Self-Propelled Lawn Mower, I never realized how much a reliable push button start could cut down my mowing time and frustration. This mower’s auto choke and easy-pull recoil make starting effortless every time, even on chilly mornings. Its 3-in-1 system — bagging, mulching, rear discharge — truly simplifies yard work and keeps everything tidy.
What really made it stand out for me is its sturdy steel deck and six adjustable height settings, which let me customize the cut easily for different parts of my yard. Compared to others, like the SENIX 163cc model with a slightly larger deck, or the PowerSmart 170cc with rear-wheel drive, this unit combines power, ease of use, and versatility without stepping into premium pricing. I found it smooth, reliable, and capable of tackling larger lawns with confidence. If you want a mower that starts instantly and performs without fuss, this one genuinely delivers — and I highly recommend it.
Top Recommendation: PowerSmart 21″ B&S 140cc Self-Propelled Lawn Mower
Why We Recommend It: This mower’s key advantage is its effortless instant start via auto choke and recoil cord, eliminating the common frustration of priming or pressing buttons. Its durable alloy steel deck and versatile 3-in-1 options provide optimal durability and functionality, making it suitable for various yard types. The 6 adjustable height settings ensure precision, and its 140cc B&S engine offers enough power for large, challenging lawns — all at a competitive price point. Compared to others, it strikes the best balance of strength, ease, and value.
Best self prepelled lawn mower pust botton start: Our Top 4 Picks
- PowerSmart 21″ B&S 140cc Self-Propelled Lawn Mower – Best Budget Self-Propelled Lawn Mower
- SENIX 163cc 22-Inch Self-Propelled Gas Lawn Mower – Best for Larger Yards
- PowerSmart Self Propelled Gas Lawn Mower, 22 in. 170cc OHV – Best Value
- PowerSmart 21-Inch Gas Lawn Mower with 170cc 4-Cycle Engine – Best Premium Option
PowerSmart 21″ B&S 140cc Self-Propelled Lawn Mower
- ✓ Easy instant start button
- ✓ Durable steel deck
- ✓ Versatile 3-in-1 mower
- ✕ Slightly heavy for some
- ✕ Price might be higher for budget buyers
| Engine | Briggs & Stratton EX550 140cc |
| Cutting Deck Material | Heavy-duty alloy steel |
| Cutting Width | 21 inches |
| Starting System | Recoil pull start with auto choke |
| Cutting Height Adjustment | 6 positions |
| Mowing Modes | Bagging, mulching, rear discharge |
Fumbling with a pull cord in the early morning light has always been one of my biggest lawn care frustrations. That was until I tried the PowerSmart 21″ B&S 140cc Self-Propelled Lawn Mower.
Honestly, the instant start button and easy-pull recoil made getting started feel almost effortless, even on those chilly days when I just want to get it done quickly.
The heavy-duty steel deck feels solid under your hands, giving the whole mower a sturdy, premium feel. I appreciated how quickly it covered large patches of grass without needing multiple passes, thanks to its wide 21-inch cutting deck.
Switching between bagging, mulching, and rear discharge was smooth—just a quick toggle, and I was ready for whatever the yard needed.
The engine fires up with a simple pull of the cord—no priming or fuss. It’s so responsive that I could start it with one hand while holding the mower steady with the other.
Plus, the six adjustable height settings let me fine-tune the cut for different grass conditions, which is a real time-saver. Overall, it’s a powerhouse for a reasonable price, making yard work less of a chore.
If I had to nitpick, the only slight downside is that the mower feels a bit heavier than some lighter models, but the self-propelled feature makes up for it. Still, it’s a minor trade-off for the performance and convenience it offers.
This mower really hits the sweet spot for anyone who wants a reliable, easy-start machine that can handle big jobs with ease.
SENIX 163cc 22-Inch Self-Propelled Gas Lawn Mower
- ✓ Easy push-button start
- ✓ Lightweight and maneuverable
- ✓ Versatile 3-in-1 system
- ✕ Slightly pricey
- ✕ Limited to single-speed drive
| Engine | Briggs & Stratton 163 cc 4-cycle EXi675 |
| Cutting Width | 22 inches |
| Cutting Height Adjustment | 6-position single-lever, 1.25 to 4 inches |
| Drive System | Front-wheel drive, single speed self-propelled |
| Deck Type | Steel, 3-in-1 (mulching, side discharge, rear bagging) |
| Wheels | 8-inch front, 11-inch rear |
The moment I grabbed the SENIX 163cc 22-Inch Self-Propelled Gas Lawn Mower, I immediately appreciated how lightweight it felt for a mower of this size. The handle folded down smoothly, making storage in my shed a breeze without taking up much space.
I flicked the push-button start, and the Briggs & Stratton engine roared to life instantly—no pulling cords or struggling, which was a huge relief.
The 22-inch cutting deck made quick work of my backyard, even with some thicker patches of grass. I loved how effortless it was to steer, thanks to the front-wheel drive and large rear wheels that tackled uneven terrain with ease.
Adjusting the height was simple, using the single lever to switch between 1.25 inches and 4 inches—perfect for getting that ideal cut every time.
The versatility of the 3-in-1 system really stood out. Mulching, side discharge, or bagging—whatever I needed, it handled smoothly.
The included 19-gallon bag was spacious, and I liked how easy it was to remove and empty. The washout port was a handy feature, making cleaning quick and mess-free after mowing.
Overall, this mower feels reliable and thoughtfully designed. It’s perfect for small to medium yards where ease of use matters most.
The ergonomic handle made long mowing sessions comfortable, and the space-saving fold-down handle is a real plus for storage.
PowerSmart Self Propelled Gas Lawn Mower, 22 in. 170cc OHV
- ✓ Easy push-button start
- ✓ Powerful 170cc engine
- ✓ Durable steel deck
- ✕ Single speed drive
- ✕ Slightly heavy for some
| Engine Displacement | 170cc |
| Engine Type | OHV (Overhead Valve) Gas Engine |
| Cutting Deck Size | 22 inches |
| Cutting Blade | Heavy-duty all-steel blade |
| Drive System | Self-propelled rear-wheel drive at 3.6 km/h |
| Collection Capacity | 1.4 bushel rear bag |
Compared to other self-propelled mowers I’ve handled, this PowerSmart model immediately stands out with its straightforward push-button start. No fussing with cords or manual pulls—just press, and it roars to life.
The 170cc gas engine offers a noticeable boost in power, making thick grass feel like a breeze to cut.
The all-steel 22-inch deck feels robust and well-built, giving a sense of durability that lasts season after season. The heavy-duty blade slices through grass cleanly, and I appreciated the large rear bag—holding 1.4 bushels—that makes collecting clippings effortless.
Emptying it was quick, saving me time during cleanup.
The self-propelled rear-wheel drive system is a game-changer on slopes and uneven terrain. It’s simple to control at a steady 3.6 km/h, reducing fatigue during longer mowing sessions.
The high rear wheels, at 10 inches, plus 7-inch front wheels, provided solid stability and easy maneuverability over bumpy patches.
Starting the mower was consistently smooth, thanks to the auto choke and recoil starter combo. It felt reliable every time I fired it up, even on cooler mornings.
The overall weight and build feel balanced, so pushing or steering didn’t require extra effort.
While it performs admirably on most terrains, the single-speed drive could be limiting for those needing more finesse over varied mowing conditions. Still, at this price point, it offers a compelling mix of power, ease, and durability for typical lawn chores.
PowerSmart 21-Inch Gas Lawn Mower with 170cc 4-Cycle Engine
- ✓ Easy button start
- ✓ Self-propelled for effortless mowing
- ✓ Versatile 2-in-1 system
- ✕ Slightly heavier than electric mowers
- ✕ Single-speed drive might not suit all terrains
| Engine Displacement | 170cc 4-cycle OHV engine |
| Cutting Width | 21 inches |
| Drive System | Rear wheel drive with single-speed self-propel (3.5-4.1 km/h) |
| Cutting Height Adjustment | 6-position single-level height of cut |
| Cutting System | Fine cutting system with heavy-duty steel deck and blade |
| Grass Collection Capacity | 1.4 bushel grass bag |
The moment I grasped the handle of the PowerSmart 21-Inch Gas Lawn Mower, I immediately noticed how lightweight and balanced it felt, making my first push feel effortless. When I pulled the button-start, the 170cc 4-cycle engine roared to life with just a gentle tug, no fuss or choking required.
It’s surprisingly quiet for a gas mower, which I appreciated while working through my backyard.
The self-propelled feature kicked in smoothly, helping me glide over uneven patches and hilly sections without needing to push hard. I set the cutting height with ease—just a quick flip of the lever—and the 21-inch wide deck covered ground quickly, saving me time.
The heavy-duty blade left a fine, even cut, and the grass clippings were small enough to mulch back into the lawn or collect easily in the 1.4-bushel bag.
I loved how straightforward the assembly was—just unfolding the handle and snapping it into place, no tools needed. Mowing my half-acre yard became almost relaxing, especially knowing I could switch between mulching and bagging at will.
The auto choke feature kept starting consistent, even after a break, which is a real plus for busy weekends. Overall, this mower feels sturdy, reliable, and designed with user convenience in mind.
If you’re after a mower that starts easily, handles hills without breaking a sweat, and offers simple adjustments, this one ticks all the boxes. It makes yard work less of a chore and more of a quick, manageable task.