It doesn't have an air filter like the one in the photo. It has a simple black square. Also, I started it about 10 times and it started right away following the instructions which say: Close the air, pull the cord, then press the throttle and pull the cord again and it started. After it starts, open the air. Don't forget the bubble if the tank is empty. Get the head that everyone mentions. The automatic one didn't suit me because it kept cutting off.

I got it for some odd jobs and it has more than proven itself, I used it for breaking in at half throttle on small to medium grass. Get it with your eyes closed, I highly recommend it

It has nothing to envy from much more expensive ones, you can even use it for professional purposes, it is also very economical, it burns perfectly, I believe there is nothing better in its category! The only problem was with the attachment it has inside, the clasp is fake and opens on its own, I hold it with a zip tie, but this is not a solution, you have to go to a seamstress to sew you another one.

I got the machine for some side jobs, it has more than paid for itself. Get it with closed eyes, it has many positives but also some negatives. I have used this specific machine a lot, on green grass, dry straw, on slopes, everything! It can handle destruction, very powerful and durable machine. It easily moves forward, it's a beast. The negatives are the high gasoline consumption, after some uses the front protective shield came off and one base of the gasoline tank broke, but it still works fine. The positives are that no matter how much I mistreat it, it still holds up, but the most important thing is its price compared to others on the market and its horsepower. I won't be upset if it breaks, I'll just get another one because it makes its money. Always clean its filter after each use and always use the correct ratio of oil/gasoline.

I tried it about 3 times for about 3 hours each time.
The triangular vibrations do a good job.
With 1 liter of fuel, it lasted about 1.5 hours, so all good.
It is very powerful, but immediately get an aluminum head and throw away the crappy one. With a 4 or 4.3 mm trimmer line, it will cut through everything. Equally effective with a blade due to its high power.
As for the negatives, I will mention the cold start. I changed the spark plug with an NGK one, but it takes 8-10 pulls to start in the cold. I suspect that the carburetor needs adjustment, but I didn't have time to do it.
For further details, I will come back, although Nakayama products are not the best.
P.S.: The throttle sometimes needed to be pressed harder because it got stuck a bit. It seemed like it wasn't the best quality.
Today, on the contrary, the throttle got stuck on its own at full speed. Disappointing for a problem with such little use.
I give it 2 stars and we'll see.

I have used it only once. I cut grass in an abandoned field for 1.5 years (photo grass).
I am a beginner in using it, but based on the questions from Skroutz, here are my answers:
A) It started cold after 5-7 attempts the two times I used it (first time when starting, second time during use). It starts hot immediately.
B) It is heavy at the back, although the frame is aluminum, so it is lightweight and durable. With its nice attachment, you don't feel the weight during use. It was comfortable for 2 hours with breaks.
C) For the first operation (starting), I put about 550 ml of gasoline with oil and it lasted for two hours with some throttle.
For the second operation (regular use), I burned about a liter of gasoline with oil for two hours of use on approximately 800 sq.m. of field.
D) I bought a square nylon line with a diameter of 3.5mm and I put it on the head that came with the machine.
E) There were no vibrations during use.
F) It seems durable except for two points:
1. The plastic attachment used to open and close the choke.
2. The handle with the plastic parts for the throttle.
If anyone has any other questions, feel free to ask and I will answer.
Update 31/8/2021:
It has already cleared about 10 acres without any problems and with economical gasoline consumption.
Update 27/2/2022:
The machine had a problem with its starting. The carburetor and spark plug were replaced, and it works fine now. (The replacement was done by a local mechanic, and I also do not know if the problem arose from improper use, as someone else is using it, so I don't know the details.) Overall, though, the machine, as I have mentioned, does not start quickly. It starts with a choke open, and then after 4-5 tries with the choke in the middle to get it cold. There are no other problems. The positives still remain. The plastic parts that worried me are holding up fine, except for the plastic head, which was purchased separately and is better.