KYMCO Downtown 350i Repair Manual page 100

2.Periodic Maintenance
Downtown 350i
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 screw with the tappet
adjustment tool. If the clearance is too 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 and back to
TDC on the compression stroke.
Torque
Thread
Item Qty Remarks
size (mm)
kgf-m lb-ft
Valve adjusting lock nut 4 5 0.7-1.1 5.06-7.96 Apply oil to thread
2-65