Agreed. Go through all of them. Sand down and move around, no need to waste money on buying extra shims. Easy to get the clearance exactly as you want. :goodluck:Yes I would definitely adjust all of your valve lash clearances now... I just sanded a few of my shims mine down by hand to desired thickness with wet emery cloth, and switched a few around to have them all at near middle of spec range; 0.18mm inlet and 0.26mm exhaust.