Craftsman M105 Push Mower Review: Engine, Cut Quality, and Long-Term Durability

Craftsman M105 Push Mower Review: Engine, Cut Quality, and Long-Term Durability

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Are you looking for a dependable way to keep your lawn neat? The Craftsman M105 push mower could be the right fit for your yard.

This 21 inch mower runs on a 140cc Briggs & Stratton four stroke gas engine. It also has a two in one deck, so you can handle your clippings in more than one way.

Many owners praise how easy this mower is to assemble. Others say it starts quickly and feels simple to use.

Most owner reports are positive. Still, a few people shared concerns, such as slow engine speed and an engine failure after several years. This review looks at both sides.

Keep reading to see if this mower matches your lawn, your routine, and your expectations.

In a Nutshell

  • Size and power: This 21 inch push mower runs on a 140cc Briggs & Stratton gas engine. It suits many average lawns.

  • Two in one deck: The deck lets you bag clippings or mulch them back into the grass. You can switch based on your lawn needs.

  • Easy setup: Many owners say assembly is quick and simple. You can start mowing sooner.

  • Easy to start: Owners often describe the mower as dependable. The user-friendly design makes daily mowing less stressful.

  • Engine speed concerns: One owner noticed very slow speed after starting, even with a clean air filter. Test the engine before a big mowing day.

  • Long term wear: One owner reported an engine failure after three and a half years, even with yearly professional service. Plan for regular checks.

Engine and Starting Performance

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Starting a gas engine should feel simple, and the M105 engine aims to deliver that. Most of the work happens right at the start. Good habits make every pull easier.

Start with fresh fuel. Old gasoline can turn sticky and block the carburetor. Use clean fuel each time, and drain the tank before long breaks.

Check the oil level before every mow. Low oil can cause the engine to run rough or shut off. Use the dipstick and top up as needed.

Next, set the choke for a cold start. Move it to the closed position, then pull the cord. Once the engine runs, slide the choke back open. Leaving it closed can flood the engine and cause sputtering.

Use a short, firm pull on the cord. Let the cord rewind fully between pulls. This protects the starter and saves your arm.

Let the engine warm up for one minute before cutting thick grass. A short idle helps the engine settle. You will notice steadier power on tough patches.

Check the spark plug each season. A dirty or worn plug can make starting harder. A fresh plug is a small step that often makes a big difference.

Keep the engine area clean. Grass and dust can cover the cooling fins and trap heat. Wipe away debris before each start so the engine can breathe.

Stop after several failed pulls. Continued cranking can flood the engine and wear the starter. Check fuel, oil, and the spark plug first. Then try again with fresh habits.

Before winter storage, run the engine until it stops or add fuel stabilizer. This stops gum from forming in the fuel lines. Your mower will start easily in spring.

A simple checklist helps. Keep a note on the shed wall with each step. Write down the fuel date and plug change. This habit turns starting into a quick routine.

Good starting habits keep the mower ready each weekend. Simple checks take only minutes. Your lawn will thank you for the steady start.

Cutting Deck and Cut Quality

The cutting deck does most of the work on your lawn. It sits under the mower and holds the blade that trims every blade of grass.

A 21 inch deck covers ground at a steady pace. Fewer passes mean less time behind the handle. This width suits small and medium yards well.

Cut quality depends on a few simple habits. Good results come from regular care, not from the mower alone.

Keep the blade sharp. A dull blade tears grass tips instead of slicing them. Those torn edges turn brown and look ragged. Sharpen or replace the blade at least once each season.

Check that the deck is level. Measure from the front edge to the back, then from side to side. An uneven deck leaves stripes, high spots, and patches of uncut grass.

An engine that slows under load can also cause ragged cuts. Thick or wet grass demands more power, so the blade may bog down. Mow in drier conditions when you can.

Overlap each pass by a few inches. This step prevents missed strips and keeps the lawn looking uniform. Walk at a steady pace so the mower cuts evenly across the yard.

Clean the underside after each mow. Wet clippings stick to the deck and block airflow. Caked grass also makes the blade work harder. Scrape off buildup with a stick, and disconnect the spark plug wire first for safety.

Mowing height matters too. Taller grass shades the soil, holds moisture, and handles summer heat better. Set the blade high during hot months, then lower it slightly in cooler seasons.

Mulching works best with frequent cuts. Remove no more than one third of the grass height at each pass. Shorter, lighter clippings then break down quickly and feed the lawn.

Look for these signs of a healthy cut. The lawn should look even, green, and free of tear marks. Clippings should be fine, not clumped in large piles.

Assembly and Routine Maintenance

Start by checking the box contents. Lay out every bolt, washer, and bracket before you begin. This simple step saves time later. Keep the manual nearby for torque specs and part details.

Attach the handle first. Line up the handle brackets with the deck mounts. Insert the bolts from the outside and tighten them by hand before you use a wrench.

Connect the control cables with care. The throttle and blade control cables must sit in their brackets without kinks. A bent cable can make the controls stick.

Next, slide the bag frame into place until it clicks. Check that the bag hangs freely above the grass.

Fit the wheels. Push each wheel onto its axle until the retaining clip snaps. Spin each wheel by hand to confirm it turns freely.

Take your time with each step. Rushing often leads to loose parts.

Set the handle height. Adjust the handle so your wrists stay relaxed while you push. Most people find a comfortable setting after a short test push across the lawn.

Check the air filter every season. Remove the cover and inspect the paper element. Tap off loose dirt, and replace the filter if it looks oily or dark.

Retighten hardware after the first few mows. Engine vibration loosens bolts over time. Check the handle, wheel nuts, and deck bolts each month.

Lubricate the wheel axles. A light coat of grease keeps the wheels turning smoothly. Wipe away old dirt before you add fresh grease.

Check tire pressure often. Uneven tires can pull the mower to one side. Keep all tires inflated to the same level.

Keep a simple maintenance log. Write down the dates of oil changes, plug checks, and filter swaps. A log helps you spot patterns and plan ahead.

Store the mower in a dry place between seasons. Moisture can rust the deck and wheels. Cover the mower with a breathable tarp.

Small habits make the M105 easier to own. Simple checks now can prevent bigger repairs later.

Top 3 Alternatives

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The Honda HRN216 Mower suits homeowners who want steady, dependable cutting. Its engine starts easily, even on cool mornings. The deck trims grass evenly, and the wheels roll smoothly over bumps.

Many users appreciate how quietly it runs. It also handles thick, tall grass with ease. The height settings adjust quickly, so you can change the cut in seconds.

Most owners find it a solid pick for lawns of average size.

Toro Recycler Mower

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The Toro Recycler Mower works well for people who dislike raking. It mulches clippings finely and returns them to the lawn. This feeds the grass and keeps the soil healthy over time.

The mower has a sturdy deck and a comfortable handle. Setup takes only a few minutes out of the box. Since you never need to empty a bag, you save time every week.

Many owners say it leaves a clean, tidy finish.

Greenworks Push Mower

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The Greenworks Push Mower is a good choice for small yards and quick weekend jobs. It runs on battery power, so there are no fumes or messy fuel. Starting takes just a press of a button.

Its lightweight frame makes turning and storing simple. The motor stays quiet, which helps keep neighbors happy. Cleanup is quick because there is no oil to change.

It suits anyone who wants a simple, clean option for everyday cutting.

Handling and Maneuverability

Good handling makes mowing feel easy. The M105 gives you a steady push from start to finish. Your body does most of the work, so smooth control matters more than raw power.

Start with a few test passes on flat ground. Push the mower in a straight line and watch how it tracks. If it pulls to one side, check that both wheels roll freely before you mow again.

Turning takes a little practice. Lift the front slightly when you pivot around corners. This small move keeps the deck from digging into the turf. Lifting the front too high can tip the mower, so keep the lift light.

Hills need extra care. Mow across the slope rather than straight up and down. This keeps your feet steady and reduces the chance of the mower rolling back. Never pull the mower toward you on a steep grade.

Pay attention to how the engine responds under load. If the engine bogs down in thick patches, slow your walking pace. Let the mower work at its own speed. A sudden surge can make steering feel jerky.

Tight spaces need a different approach. Around flower beds, trees, and fences, shorten your passes. Use small, controlled movements. Keep your eyes on the path ahead instead of the mower itself, which helps you steer with confidence.

Wet grass changes how the mower feels. Wet lawns add drag, so the mower pulls harder on your arms. Mow when the grass is dry for smoother movement. You will also get a cleaner cut with less effort.

Think about the route before you start. Plan a path that avoids sharp turns where possible. Long, open passes feel more natural and keep your rhythm steady across the entire yard.

Finally, pay attention to your stance. Keep your feet shoulder width apart. Bend slightly at the knees and keep your back straight. A relaxed grip gives you better control and less fatigue over a long session.

Pros and Cons

Pros

  • Reliable performance for regular mowing sessions.
  • Easy to start for most owners.
  • Owners find the design simple to use.
  • The controls feel user-friendly from the first mow.
  • Many owners say the mower is dependable season after season.

Cons

  • Some owners notice very slow engine speed right after starting.
  • One owner’s engine failed after 3.5 years, even with yearly professional service.
  • Long-term engine life may vary from unit to unit.
  • Owner reports are limited, so your results may differ.

Who Should Buy It

This mower fits homeowners with a small to medium lawn that stays mostly flat. It suits people who want a simple machine for weekly cuts.

Used shoppers should inspect the engine first. Ask the seller about past service records. Listen for smooth running before you commit to the purchase.

Do not confuse this model with the M110. Owner reports of fuel clogging and no start after sitting point to that sibling, not the M105.

Still, a quick fuel check before storing any gas mower is a smart habit. Stale fuel causes trouble for many machines.

Hands on owners will feel at home here. Local small engine shops can often help with a Briggs and Stratton engine if a problem appears. Keep the shop number handy.

Parents who mow while kids play nearby should keep a safe distance at all times. Clear toys and sticks from the path before each session.

Shoppers who want no fuel at all may prefer a battery or electric model. This gas unit suits people who do not mind filling a tank.

Neighbors may notice the noise. A gas engine runs louder than many electric options. Mow at reasonable hours to keep the peace.

Buyers with very large properties may need more. A larger machine or a riding model could save hours on wide open lawns. This mower works best on yards that you can finish in one session.

Plan to read the owner manual before the first use. It explains the starting steps and safety tips in clear detail, so you can follow them with confidence.

Who should skip it? Anyone who expects zero engine attention may feel let down. Owners should watch for changes in engine behavior and act early.

Overall, this mower works well for a practical buyer. Plan simple checks each season, and the machine can serve a yard well over time.

Final Verdict

The Craftsman M105 is a solid choice for everyday lawn care. Many owners praise its simple design and steady performance. It suits people who want a mower that just works.

The biggest win is ease of use. Owners describe it as reliable, which matters most during weekly mowing. Many new users feel comfortable after one or two sessions.

The main drawback is the engine record. A few owners report slow engine speed after starting. One reported engine failure after 3.5 years.

These reports are limited. They do not prove a pattern, but they still deserve your attention.

Think about your own mowing habits before you buy. Count how often you plan to mow and how much time you have. A mower that fits your routine will feel far more enjoyable over time.

Homeowners with a modest yard who want straightforward mowing will likely be pleased. Those who enjoy basic upkeep will also feel at ease with it.

Shoppers with a large acreage or heavier mowing needs should look at a bigger machine. Buyers who want the latest features may prefer a newer model.

Gas engines need regular oil checks, so build a simple habit. Mark your calendar for maintenance. Consistent care often makes the biggest difference over the years.

Before you commit, run a final check. Look for oil or fuel leaks around the engine. Spin the blade by hand to confirm it turns freely. Make sure every control responds smoothly.

A little care now can prevent headaches later. Keep your expectations realistic and your maintenance steady.

In short, the M105 is a friendly, practical mower for typical yards. Weigh the engine reports against your own needs, then decide with confidence. Enjoy your time on the lawn, and happy mowing!

Frequently Asked Questions

Is the M105 easy to put together?

Yes, many owners say assembly goes quickly. Set up a clear workspace and keep the manual nearby. Take your time with the handle and bolts.

Do I need to mix oil with gas?

No. This mower uses a four stroke engine, so oil stays separate from the fuel. Check the oil level before each mow and top it off when it runs low.

What should I do if the engine runs slowly after starting?

Check the spark plug first, since the air filter may already be clean. If the slow speed continues, take the mower to a local small engine shop for a closer look.

Can I mow tall grass with this model?

Tall grass can strain any push mower. Raise the deck to a higher setting and cut in two passes. This helps the engine keep a steadier speed.

How often should I service the engine?

Check the oil before each use and change it once each season. A simple log of your service dates helps you spot problems early. Ask a shop for help if you feel unsure.

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