You can adjust it, by turning out the "Engine Governor Speed Adjustment" Screw. Check out the doodlebug manual, or message me for more details.
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.
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!
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.
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.
The stock Baja Motorsports Doodlebug DB30 has a 98cc Lifan 2.8HP engine. Most guys will find it under-powered, even after doing things like adjusting the governor, or even adding a larger (68-80tooth) sprocket on the rear. It's not uncommon to see people purchase the doodlebug, and replace it with a 6.5 Honda Clone engine, found at most automotive stores for $99-$160 The clutches that come with these mini bikes are also sub-par. Feel free to message me if you have any questions about the doodlebug.
Get the wiring diagram for your bike. I downloaded a great tank gy6 service manual that matched both my 50cc 4-stroke tank and baja scooters. I found CDI modules had a yellow and green wire going to something called speed selectable unit... I assumed a rev limiter. I diconneted the wires to it first. The bike didnt run.Then I tried connecting the green and yellow wires together, bypassing the rev limiter, and it worked great, so i did it to both bikes.
100000000000000000000000000000000000000000000000000 ft --edit-- Stock chain will be a #35 Chain. You can purchase it from many places on the web. While you're at it, change up your rear sprocket to an 80t or so.