Yingang YG125-30B, Manual, Page: 53 / 151

YG125-30B Maintenance Manual Cylinder Head, Cylinder and Piston
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Cylinder head cover
To remove the cylinder head cover:
1. Remove the lower / upper eyehole covers and turn
the crankshaft so that the piston is at the upper dead
point of the compression stroke.
2. Remove the valve cover, connecting bolt, etc.
3. Remove the cylinder head connecting bolt.
4. Remove the cylinder head cover.
Caution
Do not drop the location pin into the crankcase.
To mount the cylinder head cover:
1. Turn the crankshaft so that the piston is at the upper
dead point of the compression stroke.
2. Remember to confirm the location pin.
3. Mount the cylinder head cover and the sealing
gasket.
4. Mount the cylinder head connecting bolt. ; tightening
torque is 12N.m
5. Confirm the valve clearance, and make adjustment
with a valve clearance adjusting tool as required.
6. Mount the valve cover, etc
7. Connect the phase sensor and mount the eyehole
cover and upper eyehole cover in turn.
Valve cover
Upper eyehole cover
Eyehole cover