As is known, some types of motorcycle carburetor stuck in the intake manifold is clamped manner. And, some are locked 2 bolts on the intake manifold. Usually a model in the bolt, equipped with 2 O-ring. One stuck in the intake manifold, the muzzle again stuck in front of the carburetor.
Typically, O-rings are often damaged. That's because long suppressed and in hot conditions. Typically, the average sprawl and the muzzles coakan in carburetor or intake manifold. After unloading-pairs, typically O-ring is not meeting again closing the connection. The result is a leak and difficult setup time in idling or idle rpm.
Another O-ring may be damaged, the air adjustment bolt is on idling. Damage due to long suppressed or lost. Because, without noticing the Removable. If lost, difficult search instead. Most take the O-ring instead of lighters.
In the carburetor also. When loading the bowl, bowl gasket looks. Usually made of paper or rubber. Often, damaged, broken or dropped out because of contaminated gasoline. As a result of gasoline in the carburetor always overflowing out.