Anyone know if this 4 stoke is good?

[bikeybikerton]

Hello,
I found this 4 stroke on Alibaba:

https://besttouch.en.alibaba.com/pr...ne_kit_petrol_4_stroke_motor_for_bicycle.html

They sent me an updated picture that I attached.

Does anyone know anything about it or if I should avoid it?

thanks!
Pete