AIR CUT VALVE (ACV)
• The air cut valve can avoid some abnormality when the throttle closes too quickly, such as that
the mixed gases are too thin.
• The structure of the air cut valve is shown in the picture.
AIR CUT VALVE REMOVAL
• Remove the air inlet manifold of the cut valve.
• Remove the bolt, and remove the vacuum membrane cover,
the spring, and the vacuum membrane.
AIR CUT VALVE INSTALLATION
• Mount the vacuum membrane on the carburetor.
• Mount the spring, the vacuum membrane cover, and the lock
bolt.
The bottom side of the vacuum membrane should
be aligned with the carburetor. The top side should
be aligned with vacuum membrane.
AIR CHECK VALVE
The air check valve starts working under 50 km/h, and impel the second air inlet to burn, and re-
duce CO displacement.
AIR CHECK VALVE INSTALLATION
Reverse the procedure for removal
When installing, make sure all the connecting pipes are connected properly,
and that they are not squeezed, bent, or clogged up.
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