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If your Craftsman M320 lawn mower won’t start, you’re probably deciding whether the machine is worth fixing or replacing. This review looks at the Craftsman M320 as a buying decision and as a model with a known set of starting complaints. It is written from published specifications and owner feedback patterns, not from hands-on testing. The M320 suits homeowners with small to mid-size lawns who want a simple, push-style gas mower and are comfortable doing basic maintenance. It is a weaker choice for anyone with a large or uneven lot who wants self-propulsion, a bagging system with a large capacity, or a machine they never have to troubleshoot.
Product Overview
The Craftsman M320 is a walk-behind gas lawn mower sold under the Craftsman brand. It is a push mower with a rotary blade, a four-stroke engine, and a single-speed drive design. Owners generally buy it for a modest suburban lawn where the main jobs are regular cutting and basic mulching or bagging. Because it sits in the lower-to-middle part of the Craftsman lineup, it is usually compared against other entry-level push mowers rather than premium self-propelled models.
Most complaints about this type of mower center on starting, and the M320 is no exception. Starting trouble is usually traced to fuel, the spark system, or a few predictable maintenance gaps rather than to a fundamental design flaw. That is good news for owners, because many starting problems can be fixed with basic tools. Before deciding whether this mower fits your yard, it helps to understand what it is designed to do and where its limits are.
Key Features & Specifications
The table below lists the characteristics that matter most for a buying decision. Confirm exact figures against the manufacturer’s current listing, since specifications can change between production runs.
| Feature | What It Means for You |
|---|---|
| Mower type | Walk-behind, push design; you control the pace |
| Engine type | Four-stroke gas engine; requires regular oil changes |
| Cutting system | Rotary blade with a single cutting deck |
| Drive system | Non-self-propelled; relies on your own walking effort |
| Starting method | Recoil pull-start; no battery required for starting |
| Cutting height adjustment | Lever-based height setting across several positions |
| Best suited for | Small to mid-size flat lawns |
The key point in the table is the starting method. A recoil-start engine has no battery to drain, which makes it simpler in some ways, but it also means that fuel quality, spark condition, and carburetor cleanliness matter a great deal. If any of those are off, the engine will often crank but refuse to fire.
Pros & Cons
Pros
- Simple mechanical design that is easy to service with basic hand tools
- No battery or charging system to maintain for starting
- Suitable for smaller, relatively flat lawns
- Replacement parts such as spark plugs, air filters and blades are widely available
- Owners who maintain the engine regularly often report fewer starting issues
Cons
- Starting problems are a frequent complaint, often tied to stale fuel or carburetor gumming
- Not self-propelled, which can be tiring on larger or hilly yards
- Limited capacity for heavy grass growth or large yards
- Requires consistent seasonal maintenance to stay reliable
- Pull-start can be hard on the shoulder and wrist for some users
Performance Analysis
Performance for a push mower like the M320 is best judged by how it handles three things: starting reliability, cut quality, and effort over the length of a lawn. Each of these depends heavily on upkeep. A mower that is cleaned, fueled correctly, and sharpened will perform very differently from one that sat over winter with old gasoline in the tank.
Starting Reliability
Owner feedback about this kind of recoil-start mower tends to cluster around a small set of causes. The most common is fuel that has degraded. Gasoline containing ethanol can break down within a month or two, leaving varnish in the carburetor jets. The second most common cause is a fouled or worn spark plug. The third is a clogged air filter that starves the engine of air and makes it run rich. Owners who report the mower starts after a few pulls usually find that one of these was the issue, and that a fresh fuel mix and a new plug resolved it.
Manufacturers generally specify fresh unleaded gasoline, often with a stated maximum ethanol content, and recommend stabilizer for storage. Following those guidelines is the single most effective step toward reliable starting.
Cut Quality
A rotary mower of this type produces a clean cut when the blade is sharp and balanced. Dull or bent blades tear grass instead, leaving brown tips and an uneven look. Owners frequently report that uneven cutting traces to blade condition or deck height rather than the engine itself. For a broader look at that issue, see Why Lawn Mowers Cut Unevenly.
Effort and Maneuverability
Because the M320 is not self-propelled, you do all the pushing. On a flat, small lawn this is manageable. On a larger or sloped yard, the effort adds up quickly. Owners with more ground to cover often find that a self-propelled model is a better fit. For that comparison, Push vs Self-Propelled Lawn Mowers lays out the trade-offs clearly.
Who Should Buy This Product?
This mower makes sense for a homeowner with a small, relatively level lawn who wants a straightforward gas machine and is willing to do a few maintenance tasks each season. It also suits someone who prefers a mechanical engine with no battery to manage. If you are comfortable replacing a spark plug, cleaning an air filter, and draining or stabilizing fuel before storage, the M320 can serve you well for years.
You should skip this mower if your lawn is large, hilly, or thick with tall grass, or if you want a machine that starts on the first try with no attention. In those cases, a self-propelled model or a mower with a more robust drive system will reduce both effort and frustration. Buyers who want very low maintenance may also consider the approach described in Low-Maintenance Lawn Mower Features and Care Tips.
Buying Guide
Before you buy any push mower, match it to your yard. A useful rule of thumb is to consider a push model for lots that are small and flat, and a self-propelled model for larger or sloped ones. For a deeper walkthrough of how features compare, What Features Matter Most in a New Lawn Mower? A Buyer's Checklist covers the details. You can also check What to Expect From Budget, Mid-Range and Premium Lawn Mowers to understand how tiers differ in build and durability.
If the M320 is not the right fit, two or three well-known alternatives are worth comparing. Each is a different type of machine, so pick based on your lawn size and how much effort you want to spend.
- Honda HRN216 (push, gas, self-propelled): A well-regarded self-propelled option that owners often praise for reliable starting and a smooth engine. Good for medium lawns and anyone who wants less walking effort. View on Amazon
- Toro 22-inch Recycler (push, gas): A widely sold push mower with a mulching design and a reputation for a solid build. A reasonable step up for owners who want better cut quality in a non-self-propelled machine. View on Amazon
- Craftsman M115 (push, gas): A sibling model in the same brand family that owners often compare directly with the M320. Worth considering if you want the same general layout with a different configuration. View on Amazon
When comparing any of these, look at engine displacement, cutting width, deck construction, and whether the drive is self-propelled. Also consider how easy it is to reach the spark plug and air filter, since those are the parts you will service most often.
FAQ
Why won’t my Craftsman M320 start even though the engine cranks?
When the engine turns over but does not fire, the usual suspects are fuel and spark. Check whether the gasoline is fresh, since old fuel causes poor combustion. Next, inspect the spark plug for fouling or a worn electrode, and replace it if needed. A dirty air filter can also cause hard starting, so clean or replace it. Work through these in that order before assuming a major repair is needed.
How often should I change the spark plug on a push mower like this?
Most manufacturers recommend inspecting the spark plug at least once per season and replacing it on a set interval given in the owner’s manual. Replacing a plug is an inexpensive task and a common fix for starting trouble, so it is a sensible first step if the engine is hard to start.
Does stale gasoline really cause starting problems?
Yes. Gasoline that contains ethanol can degrade over a few weeks, especially in hot weather or in a partly full tank. The degraded fuel leaves deposits in the carburetor that restrict the flow of fuel. Using fresh fuel and a stabilizer when storing the mower is one of the most effective ways to prevent this.
Should I drain the fuel before storing the mower for winter?
Owners often either drain the tank fully or run the engine dry after adding stabilizer. Both approaches reduce the risk of varnish forming in the carburetor. Check your owner’s manual for the approach the manufacturer recommends, since some engines have specific guidance about fuel and carburetor handling.
Is this mower suitable for tall or thick grass?
Push mowers of this type handle regular maintenance cuts best. For very tall or thick grass, the recommended approach is to raise the deck, cut in stages, and then lower it on a second pass. Trying to cut a heavy growth in one pass strains the engine and leaves a rough finish.
Can I fix a starting problem myself, or do I need a repair shop?
Many starting problems can be handled at home with basic tools: replacing the spark plug, cleaning or replacing the air filter, and refreshing the fuel. Carburetor cleaning is also within reach for patient owners who follow the manual carefully. If the problem persists after these steps, or if you are uncomfortable working with fuel and engine components, consult a qualified small-engine repair technician.
Is a recoil-start engine harder to live with than an electric start?
It depends on your strength and preference. A recoil starter needs no battery and is simpler mechanically, but it requires a firm pull, and some users find it tiring over time. Electric-start models remove that effort but add a battery to maintain. Neither is inherently better; choose based on how much pulling effort you are comfortable with.
Final Verdict
The Craftsman M320 is a reasonable choice for a homeowner with a small, flat lawn who is willing to keep up with basic engine maintenance. Its starting problems are real, but they are usually traceable to fuel, the spark plug, or the air filter, and many owners resolve them with inexpensive parts and a little time. If your yard is large, hilly, or thick with grass, or if you want a mower that starts on the first try without attention, a self-propelled model is a better fit. For a push mower that you can maintain and service yourself, the M320 remains a practical option. Check the current listing here: View on Amazon.
