YS - they are a well recognized motors. They aren't your cominal garden motor. That's why only a select few shops are allowed to stock them. When you see what they are doing in F3A, well that's why they are the best. A YS 63 has the same power as a good 90 4 stroke. The new 110 - is more powerful than the 120!

It's kind of like a Shimano, they are a quality product.

If you want a good motor, a good 46 is the Thunder Tiger 46, mines had over 40 flights. I hardly ever use the starter on it. I love it!!! I ran it for the first time in 8 months the other day, flicked started again. Same plane, same motor - 3 years old and as reliable as a Volkswagen!!!!