Mantis 7940 Review (2026): Honda 4-Cycle Tiller
A single-model review of the Mantis 7940 25cc 4-cycle tiller: Honda engine, 240 rpm tines, 24 lb weight and 2-year warranty, with the missing tilling specs named.
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Mantis 7940 review: the short version is that the 7940 is a 24 lb 4-cycle tiller built around a Honda 25cc gas engine, with tines the listing rates up to 240 rpm, a finger-controlled throttle, a kickstand and a 2-year limited warranty. We have not used it ourselves; this review is based on the Mantis listing and the specs published there.
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This is a research-based review. Every figure below comes from Mantis’s Amazon listing for the 7940, collected 19 October 2026. Where the listing does not state something, we say so.
Mantis 7940 4-Cycle Tiller Cultivator, Honda 25cc
A 24 lb 4-cycle tiller with a Honda 25cc gas engine, tines rated up to 240 rpm, finger-controlled throttle, kickstand and a 2-year limited warranty.
Read the full review
The Mantis 7940 is a compact cultivator built around a Honda 25cc 4-cycle gas engine, with tines rated up to 240 rpm, a finger-controlled throttle for infinite speed control, a kickstand and a 2-year limited warranty. At 24 lb and 54 by 14 by 40 in, it is sized for carrying to the garden and storing in a shed corner. The listing says it is manufactured in the USA by Schiller Grounds Care Inc.
The listing's holes are the capability figures: no tilling width, no tilling depth and no fuel tank capacity. The 'twice the speed of other tillers' line is a maker comparison without a baseline; the 240 rpm rating is the number to trust. Twenty-five cubic centimeters is a small engine for loose soil and beds, not for new ground.
For established gardens and tight rows where a light cultivator does the job, it fits. Skip it if you need stated tilling width and depth, or real power for breaking sod; compare with our larger tiller picks.
Pros
- Honda 25cc 4-cycle engine runs on straight gas, no fuel mixing
- 24 lb weight is easy to carry, maneuver and store
- Tines rated up to 240 rpm, a stated figure
- 2-year limited warranty stated; manufactured in the USA
Cons
- Tilling width and depth are not stated, the two key tiller specs
- 25cc suits worked soil, not breaking new ground
- No fuel tank capacity stated
- The twice-the-speed claim names no baseline tiller
Other machines to compare
Mantis 7566-12-02 Deluxe XP 4-Cycle Tiller with KickstandCheck price on Amazon
Mantis 3222 Power Tiller Border Edger Attachment for GardeningCheck price on Amazon
Mantis 7940 review: the 7940 at a glance
Specifications are manufacturer rated, as published on the listing.
Who the Mantis 7940 is for
- Gardeners with established beds who need a light cultivator for weeding, mixing amendments and prepping rows, not a machine for breaking new ground.
- People who carry their tiller: at 24 lb it lifts into a truck bed or shed without a ramp.
- Anyone tired of mixing fuel: the 4-cycle Honda engine runs on straight gas, no two-stroke oil blend.
- Tight rows and small plots, where a compact 14-inch-wide machine fits between plantings.
The pick
Mantis 7940: a 24 lb 4-cycle tiller with a Honda 25cc gas engine, tines rated up to 240 rpm, finger-controlled throttle, kickstand and a 2-year limited warranty, made in the USA.
What 25cc and 240 rpm mean in practice
The listing pairs a Honda 25cc 4-cycle engine with tines rated up to 240 revolutions per minute, and claims the tines run at twice the speed of other tillers, the maker’s comparison, not a measured one. In plain terms, 25cc is a small engine: right for cultivated soil, flower beds and vegetable rows, and the wrong tool for busting sod or virgin clay. The 24 lb weight is the real selling point against bigger rear-tine machines: you can carry it, turn it at the end of a row, and store it on a shelf. The finger-controlled throttle gives infinite speed control per the listing, so you feather the tines around seedlings. The kickstand lets it sit upright in the shed. Listed dimensions are 54 in D by 14 in W by 40 in H, a slim profile for storage.
What the 7940 does well
Honda 4-cycle engine, no fuel mixing
A Honda 25cc 4-cycle engine runs on straight gas, which removes the two-stroke mixing ritual and its spilled-oil mess. Four-cycle engines also tend to run quieter and cleaner than two-strokes, which matters in a suburban garden.
24 lb you can actually carry
Twenty-four pounds is light for any powered tiller. It carries to the back forty, lifts over a fence, and stores on a shelf, where a 100 lb rear-tine machine needs a ramp and a trailer.
240 rpm tine speed stated
The listing rates the tines up to 240 rpm, a concrete figure, and claims twice the speed of other tillers. Take the comparison as marketing, but the rated number itself is checkable.
2-year warranty and a stated origin
The spec table states a 2-year limited warranty, a real term on a small machine, and the listing says it is manufactured in the USA. Both are stated facts a buyer can hold the maker to.
Limitations to know before you buy
No tilling width or depth stated
The two numbers that define a tiller, how wide and how deep it digs, are missing from the listing. Without them you cannot compare it to any other cultivator on capability, only on weight and engine. See our tiller sizes guide for what those figures mean.
25cc is a small engine
Twenty-five cubic centimeters suits loose, worked soil. On hardpan, roots or new ground it is more likely to bounce and skitter than to dig, which is the job for a larger rear-tine machine from our rear-tine picks.
No fuel tank capacity stated
The listing gives no tank size, so runtime per fill is unconfirmed. Small 4-cycle engines sip fuel, but the number that would prove it is missing.
The speed claim needs a baseline
“Twice the speed of other tillers” names no tiller and no measurement, so it is marketing. The 240 rpm rating is the usable figure; the comparison is not.
Matching it to your property
- Vegetable and flower beds: the compact 14 in width and 24 lb weight suit working between rows; see tiller types and uses for the format choice.
- Small acreage gardens: carry it to the plot, till, and carry it back; no trailer needed.
- Storage: listed at 54 in D by 14 in W by 40 in H, it stands in a shed corner; the kickstand keeps it upright.
- New ground: not its job; for breaking sod, look at our tillers for large gardens.
Buried utility lines are a real risk: in the US, call 811 a few days before you dig or till new ground. Wear eye protection and sturdy boots, keep feet and hands away from the tines, and start on clear, rock-free soil. Refuel only with the engine off and cool. Read our Safety Disclaimer.
Before you buy: a quick checklist
Run through these checks against the listing before you buy. First, the engine: a Honda 25cc 4-cycle is a small, proven powerplant for cultivated soil, and the 4-cycle design means straight gasoline with no oil mixing. If your ground is virgin sod, hardpan or heavy clay, the listing’s own positioning says this machine is for established beds, so budget for a rear-tine machine instead; our rear-tine picks cover the bigger format.
Second, accept the two missing figures. Tilling width and depth are not stated anywhere in the listing, so you cannot compare the 7940 to other cultivators on digging capability. What you can compare is weight and engine: 24 lb is genuinely light for a powered tiller, and the compact 14-inch-wide profile fits between rows where a wide machine will not go. If width and depth are deal-breakers for you, ask the seller before you buy, since those numbers decide whether one pass covers your rows.
Third, check what the warranty covers. The spec table states a 2-year limited warranty, which is a real term you can hold the maker to, but the listing gives no detail on what limited excludes, so read the warranty card when it arrives. Fourth, plan storage: at 54 in long by 40 in tall with the kickstand holding it upright, it stands in a shed corner rather than hanging on a wall. Measure the corner before it ships.
FAQ: mowing large lots
What engine does the Mantis 7940 have?
A Honda 25cc 4-cycle gas engine. It runs on straight gas; no fuel and oil mixing.
How wide and deep does it till?
The listing does not state tilling width or depth. Those are the key missing figures on this listing.
How much does the Mantis 7940 weigh?
24 lb, per the listing. That is light enough to carry to the garden.
Does it need mixed fuel?
No. It is a 4-cycle engine, so it takes straight gasoline, unlike 2-cycle tillers that need an oil blend.
What warranty does it have?
The spec table states a 2-year limited warranty.
Where is it made?
The listing says manufactured in the USA, by Schiller Grounds Care Inc.
