Stalls when revving up. Cant run at high revs. Done carby kit, plug, fuel lines, primer, fuel filter in fuel tank. Blew out breather in cap after soaking in fuel. Checked timing. Running out of ideas. Please help mr honda. I changed the line head to an alloy one with the pre cut line. Great unit when running but it just bogs down & stalls, need 2 reprime 2 to start. That doesnt always work. [email protected]
Great unit when running write
Stalling then hard to start

I have had my Honda for about a year now, thought it would be a good idea being a Honda but it was terrible. It always lacks in power, I could understand the lack of power if it was something like a 18-20cc engine but a 25cc, I have a 25cc Ryobi and it has a lot more power. Also the "First Time Every Time" starting is rubbish, it takes 3-4 pulls cold and 2-3 pulls warm.
4stroke
expensive, lacks in power

I'm a 20 year self employed gardener and use my whipper most days. This is a good quality dependable machine. Change the oil and thats about it - apart from the bump head - this for me is the only negative.

I do a lot of close in hard surface work and they don't last long without a DIY reinforcement - which involves adding a metal surface to the working end of the bump head.

I'd buy a reinforced part if one was available however as it is the (whole $40 plus) head needs to be replaced when the bump is worn.
dependable
bump head

I bought a new honda um425u about nine months ago, thought it would be trouble free for four or five years, got sick of mixing two stroke. started first time in the shop (cityedge mower and chainsaw centre bay road cheltenham), but that has been the only time, shop owner said all i had to do was pump the plastic bubble and pull, Ha Ha,

didn't come with a strap, owners manual or common fault fix guide.

find it very difficult to start, at present i have oil in the air filter compartment,(how does this happen) will only start if choke fully closed, when i try to rev up konks out. "" not happy Jan"" specially for an as new machine

Pricy, unreliable, no accessories or manual, unbalanced

Excellent trimmer, very easy to start (usually only takes 2-3 pulls). I've had mine for 7 years and it's never been serviced and i've never had an issue with it. I just top up the oil as needed.

It's also very quiet which i'm sure the neighbours appreciate.

It takes the 2.7mm cord which i find is more than adequate for the household duties, the engine is also more than powerful enough, most of the time i only have to press the trigger very lightly.

I've had this one for 2 years. I parted with double the money of a cheap one, hoping to get a taste of the famed Honda reliability. My UMS425 is beautifully behaved. It doesn't start 1st time, every time like the salesman said, but I've always got the motor running within 3-4 attempts.

I live on a 3/4 acre block and it gets a work out. Made for it.
Reliability doesn't disappoint. Gutsy engine note.
So far, so good!

This Honda UMS425 GX25 gave me nothing but trouble. At full throttle it stops running all together. At the service they told me it was the fuel that blocks the carburettor. I cleaned the carburettor, but still no go. At $90 for service just to fault find it is not worth it. If the fuel is no good, they shouldn't sell it here.
I thought I brought a good name unit. Now I got trouble for good money.
It doesn't work.

After using 2 stroke line trimmers for years I finally said enough is enough after I couldnt get my
el cheapo Homelite going. So after shopping on the net I went to GYC at Leppington and bought a
new Honda UMS 425 for $299. The first thing I noticed is how easy it is to start compared to the 2 stroke. The other thing which impressed me was the power it has and not only that the bump feed for the line actually works! Four stroke is def. the way to go. And no more fuel mixing!
An absolute Beauty!
The power, ease of starting, no more fuel mixing.

Best whipper snipper ive ever owned, what a great machine. So easy to start and use, not heavy and was a great price. It feels solid like it will go forever and a day. The big plus for me is how easy it is to reload the cord into the bump head, takes all of like 1 min to reload and keep going, well done Honda. Its a tad thirsty compared to my previous 2 stroke but i don't care, its got so many pluses that it don't matter. Recommend to anyone.
Weight, ease of use, price, quality
Little thirsty being a 4 stroke

My old 2 stroke whipper broke down after 12 years, and I had a 4 stoke Honda lawn mower. So I purchased a Honda line trimmer, with the sale that Honda was having on this model. What a fantastic unit goes first pull, not like my old two stroke, which would start after 12 pulls or more. Very quiet compare to a two stroke. Does not leak fuel from the fuel tank when turmed to it's side.
Easy start, very quiet and no mixing of 2 stroke fuels
nothing

I had a McCulloch 2 stoke before this and grew tired of having to rev the whatsits out of it before you cut. After trying a Honda trimmer I decided they were far better. I bought mine 6 months ago and I've forgotten whatever I paid for it because it works so well. Starting is a breeze (much quicker to start than a 2 stroke), no mixing fuel and much quieter. The best bit is it will cut at very low revs or you can rev it when the going gets tougher, I tried a belt attachment but found this too restrictive. And it's well worth buying quality cutting nylon - lasts much better. You would never use a 2 stroke after one of these!
Starting, noise levels, doesn't need to be revved hard to cut. The only trimmer to buy really.

I am a female, and I love this machine. When crazy with it the first day and smashed through the long grass. Easy to start, quiet, and love the way you can tap the machine to auto feed the wire. Only problem is I don't have enough grass left to use it.
Quiet, easy to start, 4 stroke motor
Maybe the price

I've only had mine for 1 month so I'll do another review in 6 months. Mine works really good. Every time I need to use it all I have to do is prime the choke, and then give it 1 to 3 pulls until it starts.
I don't have to mix 2stroke oil any more
When you put it down the plastic scratches really easy, but what's housing is not made with plastic these days? Warranty conditions: You need this serviced once per year by your lawn mower shop this costs around $55. Additionally only uses Premium Petrol