Hello, I have been in possession of a Nexxon 50 from 2007 for 2 years now. That is a very nice moped to ride. At least, when the engine is warm which takes a very long time. When the bike isn´t warm I have to use the choke lever on the handlebars, but this has to be done very subtly. I can´t let the bike warm up for a few minutes without constantly opening the lever, if I let it loose it and it springs back to