_ "Does it start up ok (with the choke closed)? But then, when accelerating from a stop, does it go real slow and sputter and/or die unless you keep the choke closed. How fast does the bike go if you do leave the choke closed? "
that is exactly what happens. when it does go it picks up pretty quick and it hits a little over 20 but i think it would go faster if i could hit a long stretch of road.