Reply To: Gv125 valve clearance does it tend to shrink or grow with wear? Aug 9, 2022 at 4:24 PM #8307 Simon👤 Member Topics: 1Replies: 353 Going to extreme the valves can erode but in all honesty your clearance is fine, the most important thing to keep valve clearance good is regular oil & filter changed mine have not moved at all in 10000 miles.
