How can I tell if my 50cc 4 stroke scooter throttle is wide open?

[whitney1207]

inside the venturi of the carb there is a round plastic thing. That is part of your diaphram in your carb. you should be able to push it up easily into the roof of the carb. If you take the top of your carb off you should be able to pull it out. Just remember to relalign the tab if you do that. It should not be stuck.. if that's the thing you're talking about.