Because the pressure reduction adjustment is incorrect, the rocker is too heavy, and there is air intake sound. How can I adjust it?

First turn the flywheel forward to compression

Then press the decompression handle with your hand. It is correct to have a gap of about 5mm between it and the limit shaft.

If the gap is too large or too small, it must be adjusted.

When adjusting, use prongs 24 and 13 to loosen the nuts.Adjust the angle of the fork of rotation 13, then tighten the nut of fork 24, and try to see if the clearance of the decompression handle is appropriate.If not suitable repeat the above steps.