Honda XL350 Kibblewhite Performance Intake Valve Guide. This valve guide supports the valve stem in the cylinder head and controls stem-to-guide running clearance. Check guide bore, valve-stem diameter, seat alignment and oil-control condition during top-end service; seat work may be needed after guide replacement. Guide service should include stem-clearance checks and proper guide finish so the valve runs straight without excess oil draw. Fitment / CompatibilityHonda XL350 (1974-1978) Product Details Aftermarket replacement part Intake valve guide; match guide outside diameter, stem bore, length, shoulder style and cylinder-head application Sold individually Before OrderingConfirm guide outside diameter, valve-stem bore, length, shoulder style and cylinder-head application before ordering