These Genesis "Big Air" Carbs are the most simple and effective carburetion unit on the market today. (Patented) An easy to adjust pilot circuit and a hi-tech EDM cut needle that is flat on 1 side with a very easy to adjust power jet provides 3 simple to use circuits. The "Big Air" Carb does not use any jets or use any electronics and does not require any disassembly for tuning. No gas on your hands, no jets to deal with. All tuning is done externally with a 4mm allen wrench on a 25 clicker adjustment that moves the needle up and down a total of .250. This carb is incredibly easy to tune! Remember, No Jets!! You can literally tune this carb externally in seconds, not 10-15 minutes like a normal carb!!

This carb was designed to be simple in tuning and function. That was one
of our main goals in developing these Genesis "Big Air" Carbs. These
carbs are unique in the fact that once they are on the engine, it
is not necessary to ever remove them.
Available in (125cc size) 30x38mm, 76mm Standard/85mm
Honda & (250cc size) 32x40mm offered in
2 lengths - (78mm shorty) (87mm long)