I was looking at these a while ago. The variator is one of the restrictions. But if you fit the 110 CDI you get another 1000 RPM too. Should do just over 40 then.
Yamaha Aerox NS50 2016 project Yamaha Aerox NS50 2016 Piaggio Typhoon 2019: Great scooter, poorly built (sold) Yamaha Slider 2002: The problem child (sold) Yamaha BWS NG: The Family affair (son now owns) Yamaha Aerox YQ50 2008: The fast one (sold) Yamaha Jog RR 2004: The first one (sold)
Mrs Bud 10/06/22 you are not going to pull that engine apart and put lots of new bits in it, are you?