KYMCO K-XCT 300i, Owner'S Manual, Page: 144 / 656

2. Periodic Maintenance > Valve Adjustment K- XCT 300i
2-45
Place a 9 mm box end wrench over the locknut, and loosen the locknut.
If the valve clearance is tight back out the valve tappet adjusting screws
with the tappet adjustment tool. If the clearance is to loose turn in the
adjusting screw until there is a light drag on the feeler gauge. Hold the
adjusting screw locknut in place with the wrench to make sure it doesn't
interfere with the adjustment.
Lubricate the tappet adjusting screw threads with fresh engine oil. Hold
the adjuster in place and tighten the locknut. Always recheck the
clearance after tightening the locknut. Also, recheck after turning the
engine over a full 360°.
Item Qty
Thread
size (mm)
Torque
Remarks
kgf-m lb-ft
Valve adjusting lock nut 4 5 0.7-1.1 5.06-7.96 Apply oil to thread
Make sure the O-rings on the crankshaft and timing plugs are in good
condition. Replace them as needed. Install the timing inspection and
crankshaft caps to the right side of the engine. Tighten the caps
securely but not overly with a large flat blade screwdriver.