Last night went great. After the raw excitement of the new digs kept them yapping for 20 minutes it was lights out. Both slept trough the night without incident (which is rare for the two year old, he likes 3:00 A.M.
Now I just need mom to relax.
The Z50 really is way too fast for him so I machined the throttle to have an adjustable stop and he keeps it in first gear. I also had training wheels on it last year and those come off this spring. I do not push him and I actually had to keep from giving in to his requests to remove them last year