DIY and save money Simple installation Keeps engine running smooth All Doodle Bug versions If the throttle return spring on your Baja Doodle Bug breaks on you, things are going to get dangerous fast Or very exciting depending on how you look at it If the throttle return spring on your Baja Doodle Bug breaks on you, things are going to get dangerous fast. Or very exciting depending on how you look at it. Either way, it must be fixed no matter how big of a thrill seeker you are. This throttle return spring is perfectly calibrated to the Doodle Bug so you can be certain you will get the same performance as before. In addition, this same spring may be used on the Monster Moto MM-B80. You can count on Monster Scooter Parts to bring you the Baja Doodle Bug (DB30) parts you need, big or small.