Where is the motorcycle valve? How to adjust it? It is best to attach

1. Motorcycle valves must be installed in the engine cylinder head. The so-called valve adjustment refers to adjusting the relative distance between the valve rocker arm and the valve stem. The adjustment of this distance is realized by the adjustment screw on the valve rocker arm.

2. To adjust the valve:

A. Open the cylinder head cover, turn the magneto counterclockwise and mark "T". At this time, make sure that there is an axial gap between the intake and exhaust valves (adjust the coaxial direction of the bolts), which is the correct position.

If there is any abnormality, continue to rotate 360 counterclockwise until there is an axial gap between the intake valve and the exhaust valve.

B loosen the lock nut of the valve rocker arm, turn the adjusting bolt counterclockwise, put the feeler gauge (0.03mm) under the adjusting bolt, turn the adjusting bolt clockwise, and the fastening strength shall be subject to the slight resistance of the feeler gauge twitching, and then lock the nut.

C, according to the disassembly sequence to restore the original state, and then ignition.

There are two screw holes on the right side (gear side) of the engine. The top is small and the horizontal is big. Open it first, insert it horizontally with the sleeve, rotate it counterclockwise, and observe it in the upper hole. When the rotation resistance is felt (the intake valve is opened and then closed), and the T-shaped sign on the magnetoelectric machine is seen in the center of the hole, it means that the piston runs to the top dead center and the valve can be adjusted.

The valve clearance standard is in the manual. If you don't have a feeler gauge, you can only rely on your hand. First, loosen the locking screw on the rocker arm, turn the gap adjusting screw in the middle and shake it up and down until you feel a gap, not too big or no gap. Tighten the locking screw as appropriate, and then adjust the other screw.

Don't adjust the valve clearance frequently, because the working surface of the screw and the valve will change every time, and the valve clearance will change again after running in again. Make adjustments if necessary.