I'll add my .02 and resurrect an old thread. My 12 year old Stihl FS 55R finally died 2 weeks ago, so I purchased the HHT25 last week and have about 1.5 hours of run time on it so far. I chose this machine based on my past experience with Honda (cars, mower, generators, snowblower, etc). Below are some thought for anyone considering this machine:
-Super easy to start
-Feel lighter than the specs suggest
-Tons of power at half throttle
-No 2-cycle mix needed
-Hesitates/sputters when mashing the throttle from idle and when running wide open (this may get better with more engine run time)
-Potential lack of support as Honda dealers in my area claim to never have sold an HHT trimmer
I will be monitoring the sputtering/hesitation issue closely and will post results here.
Quick update: the throttle/top end issues have all gone away on the HHT25. It would seem that a full or hour (or more) engine run time is required for full break-in to occur. It is now a powerhouse.
Very smooth now and loads of torque. Always starts on the second or third pull.
Also of note: I changed the engine oil after 1.5 hrs of run time. Originally, I used the included Honda 10W-30 oil (conventional) and upon draining the engine, the oil looked absolutely filthy. That is good, as all contaminants are suspended in the oil, and not sitting on the pan's floor.
I refilled with a full syn 10W-30 (Havoline ProDS) and will likely change in another 1.5 hours to ensure longest possible life.
Changing oil in this thing is absolutely easy as pie. No idea why anyone would complain about having to change oil in a 4-stroke trimmer.
The only drawback I see for this trimmer is price. I am not sure why it is priced to high, but hoping it will out live any potential competitor trimmer I may have purchased. My old Stihl FS 55R was sold for $100, making the price of the Honda more palatable.
Looking forward to many years of service for this machine and high expectations.