The Baja Heat mini bike has a 200cc 6.5 Hp size engine.
I OWN THIS BIKE THERE IS A SMALL NUT LOCATED ON THE BOTOM OF THE ENGINE DOWNLOAD THE MANUAL FROM www.bajamotorsports.com TO SEE WHERE EXACLY IT IS
Look under Honda..They are the same exact engines as Honda so match up the hp rating with a Honda...
Homelite
A 2.8 = 97cc
Castroil
gas
It's not easy to do.
monsterscooter parts has them on the internet for $42
Go towww.bajamotorsports.net for complete owners manual.
Buy a new one.
The carb needs to be removed, taken apart, cleaned and reassembled.
http://jleibovitch.tripod.com/id247.htm