Lawn Mowing
everything for lawn care all in one place
providing dependable & original lawn tips since 2008
The Lawn Guide
Honda UMK425u
Honda UMK425u

A Review Of A Honda 4 Stroke Brushcutter

This review covers the Honda UMK425U 4 Stroke 25 cc Brushcutter.

The standard head is a bump feed which holds about 4 meters of 2.4 mm nylon. The machine also comes standard with a harness, blade and 2nd guard for the blade.

I purchased this machine only a few months ago so the long term reliability and repair costs associated with it are unknown from my own point of view. In my own opinion, brushcutters, whipper snippers, and most other machines require at least a year of commercial use before they can be evaluated fairly and properly. And the Honda UMK425U will be used as a commercial brushcutter by this author.

The Honda brushcutter is proving smooth to operate with low vibration and medium noise levels.

Power levels on the other hand are more than adequate for everyday use on regular mowing work. On heavy duty slashing work of long grass, this machine is NOT the one to choose or use. The lack of power in these situations will in fact slow you down by perhaps 20-50%. So it will cost you time in slower productivity.

So while the Honda UMK425U is proving a great machine for regular everyday mowing work, if we are needing a brushcutter with more power for more heavy duty work, then we must also look at other options past this single machine.

So this leaves the assessment process with several possibilities:


  • Accept the machine for what it is and use it for everyday use with excellent reliability and performance, and accept that we will be slowed down on the rare slashing jobs,
  • Buy a 2 stroke which will have the extra power available when you need it, on those few slashing jobs now and then,
  • Buy the 35 cc model for when you need the extra power. Though I wouldn't recommend this option because the extra fatigue caused by using a heavier machine throughout the day CAN and eventually WILL cause health problems (tendons, joints RSI etc - possibly shortening a career).

So I can honestly say at this point in it's life cycle, I am very happy with the purchase. The Honda UMK425U is not suitable for every type of work, and that’s just fine, what machine can be expected to perform perfectly in every situation and for every work load? None can, and neither can this one.

However, for the work it is intended, it is proving an excellent asset and a happy investment. It does its job very well, runs incredibly reliably, and is a pleasure to use, starting with ease every single time the cord is pulled.

The Honda is a little heavier than 2 stroke brushcutters, however I haven’t found this to be an issue for me personally.


An Update - 7 years Later

This is an update on the performance of the Honda UMK425U 7 years after it was purchased and the original review was written.

Note: I am now onto my second Honda UMK425U in this same time, used commercially. The first brushcutter eventually became heavily weather and water damaged, due to my own use of the machine and keeping it uncovered on a trailer through winter and summer. Which is was my own doing. But the good news was that this gave me an excuse to buy another shiny new Honda. However, nowadays - it is always kept protected from weather.

I am very happy with this machine, it has proven to be my most reliable brushcutter of the 4 I have used in the past 7 years which have all been used commercially. Today, it still runs smoothly, does the job without any complaint, and starts without effort.

Common problems I have faced with brushcutters in the past have been worn out clutches, engine gaskets blowing, unreliable performance and starting, and carbys breaking. All these problems surfaced within the first 18 months of owning these machines, yet I have seen none of these problems with the Honda, it continues to run like the day I bought it.

I have had no problem with engine performance whatsoever whenever using it on an angle to trim garden edges, which is frequently, so if the mower shop tells you something like this, it's fluff. I have never experienced any type of oil flow problem, engine cut out, or oil leakage or anything of the sort whatsoever - which were some of the common misconceptions I had heard in the past about the Honda UMK425U.

As I stated previously it is underpowered for heavier slashing work, but for normal everyday purposes, it's top notch!

I can state without hesitation that this is one of the best machinery purchases I've ever made for my business, and I recommend it to anyone looking to purchase a new brushcutter. I have been honest in this assessment, so contractors looking to purchase this machine should evaluate both its pros and cons, it’s a great machine - but not perfect for every situation. So keep these things in mind when considering switching to any 4 stroke small engine machine. But for myself and my own work, the Honda has been a brilliant machine, and I continue to use it today.





All content original and copyright
The Lawn Guide
Lawn Care Tips
you may also like one of
these lawn care articles...
General Lawn Care
IMAGE
'New Content' By Kate Wall Your back lawn may not be the MCG, but if...
IMAGE
Fertilising Lawns In Winter A Greener Lawn This Winter Yes, lawns can...
IMAGE
Fertilisers can cause environmental damage Environmental Impact Of...
Lawn Repair
IMAGE
An alternative method to aerate a lawn Lawn Coring Alternatives In...
IMAGE
Buffalo Seed Heads The Problems of Buffalo Lawn Going To Seed One of...
IMAGE
Buffalo Lawn Thatch Thatch In Buffalo Lawns Thatching in Buffalo...
Lawn Watering
IMAGE
Watering too often Excessive Watering Of Lawns When we talk about...
IMAGE
When is the best time to water lawns Correct Lawn Watering Times...
IMAGE
A malfunctioning sprinkler Checking Reticulation Our reticulation...
Lawn Mowing
IMAGE
Lawn clippings left on lawns Clever Garden Recycling With Lawn...
IMAGE
Long periods between mowing shouldbe avoided to maintain good lawn...
IMAGE
Honda UMK425u A Review Of A Honda 4 Stroke Brushcutter This review...
Weeds | Pests | Diseases
IMAGE
Storing lawn pesticides and weed killers Storing Lawn and Garden...
IMAGE
Mature Nutgrass How To Kill Nutgrass | Mullumbimby Couch For the sake...
IMAGE
'New Content' By Kate Wall All herbicides will be more effective in...
Lawn Varieties
IMAGE
Perennial Bluegrass Characteristics of Perennial Bluegrass Perennial...
IMAGE
Saltene Grass Characteristics of Saltene Grass Saltene lawn is a bit...
IMAGE
By Kate Wall 'New Content' In Queensland and other sub-tropical parts...
THE LAWN GUIDE ©


Proper lawn mowing techniques, mowing our lawns without a catcher, correct lawn mowing heights, mower reviews, maintenance & more
independent lawn care tips for australian lawns

Lawn Care Facts
Lawn Fact:
Bowling Greens are watered once a week and mowed twice a day.
They can do this because they water very heavily and deeply, resulting in the lawn sending down very deep roots past the evaporation level, so the lawn always has access to adequate water.
Professional lawn care videos sharing quality lawn care tips in an easy video format - click to watch
preparing soils for new lawns video
meanings to the most common terms
used in lawn care practices in australia
Lawn Care Expert
Respected Australian turf and plant breeder Todd Layt shares expert lawn care advice with lawn lovers
LINK TO THE LAWN GUIDE
Grab this image and link to Australia's original & favourite source of quality lawn care tips
THE BUFFALO LAWN CARE SITE
Lawn care tips for Australia's favourite shade grass
Organic lawn care advice to create environmental benefit from our lawns
IMAGE
Organic lawn grub control How to Organically Control Lawn Grubs. Lawn grubs can become a real...
IMAGE
Fix Lawn Problems As Quickly As Possible Reducing the use of chemical treatments and reducing...
IMAGE
Reducing The Environmental Impact Of Lawns Despite new modern attacks against lawns, every...
A low maintenance and environmentally friendly lawn for all warmer regions
IMAGE
Zoysia and Winter Are Not Good Friends The one single drawback which stops Zoysia being the...
IMAGE
Roadsides are perfect for Zoysia Zoysia - The Great Choice For Low & Medium Use Government...
IMAGE
The Lawn Guide is putting a new focus onto Zoysia grass as the best lawn type for use in all...
Lawn care discussions and observations in a friendly blog format from The Lawn Guide
IMAGE
Lawn Club is a new lawn care, lawn mowing, and gardening contractors business information...
IMAGE
As many people who have visited The Lawn Guide over the years, and since our first launch in...
IMAGE
Lawns Are The Greatest Carbon Cleaners We should all have confidence in our lawns, knowing...

Lawn Care Topics
the lawn guide ~ australia's leading source of quality lawn care information