Yes, the doodlebug has an adjustable carburetor.
Your Baja Doodlebug is not getting the proper amount of gas if it is stalling out. This could be due to a problem with your fuel lines, fuel pump, or fuel intakes.
search doodlebug spring on google, or just go buy a expansion spring from a hardware store
The Baja Doodlebug mini bike has been discontinued. However, you can still get reconditioned ones (as of 8-10-12) at suggested link below.See related link below!
To fix the pull start on a Baja Doodlebug racer, first ensure the engine is cool and remove the cover to access the pull start mechanism. Check for any frayed or broken cords; if damaged, replace the pull cord by winding new cord onto the reel. Ensure the spring mechanism is functioning properly and reassemble the cover, ensuring all bolts are tight. Test the pull start to ensure it operates smoothly before riding.
You can adjust it, by turning out the "Engine Governor Speed Adjustment" Screw. Check out the doodlebug manual, or message me for more details.
I think that the best pocket bike for a beginner might be the baja doodlebug. It goes a good speed for a beginner and it can also help teach them about engines and upkeep of a bike. Baja is a very good brand too.
Craigslist has them around $150. i've seen them new for $300 on websites, and if you wanna spend $150 more you can put a 6.5hp engine in it.
To adjust the speed limiter on a Baja Doodlebug, locate the throttle cable and the adjustment screw typically found near the carburetor. By turning the screw clockwise, you can limit the throttle's range, thereby reducing speed. Conversely, turning it counterclockwise will allow for a greater throttle opening and increased speed. Always ensure adjustments are made carefully and test the bike in a safe environment.
If you're talking about the doodlebug, some people have had luck flipping the rubber o-ring around on the fuel cap. Give that a shot.
Check the link I added in the "Related Links" area. It's an assembly video, and pre-ride instructions (what to check, etc) for the Baja Motorsports Doodlebug DB30
Make sure the vent in the fuel tank cap is not plugged.