I know this doesn't belong to the engine category but this has the most people in it ad I'm trying to get help asap. One of the people my mom works with has a 99 scrambler 400 4x4 for sale. He says it needs te carb cleaned and a spring for the throttle. Not sure what spring but I guess it doesn't run so I can't hear it run before I get it and could both of these cause it not to run? I can fix the carb myself but where could I get a spring?