Here you will find all of Ø13 to 15mm carburetors for your MBK 51 / MOTOBECANE AV10! When choosing a carburetor, several parameters are to take into account! Be aware that a carburettor SHA will require a rigid pipe for so SHA Ø fixing 19mm, however a rigid carburettor PHBG will require a pipe with a 24mm mounting diameter (often 19mm pipes ...). A flexible PHBG carburetor can be fitted with a rigid attachment Ø24mm pipe (with special sleeve rigid pipe) or a flexible inlet pipe ... -The 15mm carburetor SHA is not one that brings the most performance, however is very easy to adjust and goes well with small configurations 50cc or 70cc. Choose according to your needs with choke lever, cable ... -The 15mm carburetor PHBG are rigid or flexible, soft avoids emulsions, so it is ideal on the drivers who take high speeds! However, it must be space to put the pipe and the sleeve. The carburetors PHBG offers very good performance there are however more complex set! In difference SHA, these carburetors feature an adjustable needle, a pilot screw but also an air screw, pilot jet, starter and main! Little is even changing the needle or the valve cup.