2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 357Get this manual
CRANKSHAFTBALANCER (ARX1200T3T3D)PISTON Never use wire brush; it will scratch the grooves
Clean carbon deposits from the piston ring grooves with ring that will be discarded
PISTON INSPECTION
Inspect the piston rings for movement by rotating the ringsThe rings should be able to move in their grooves without catchingPush the ring until the outer surface of the piston ring is nearly flush with the piston and measure the ring-to-groove clearanceSERVICE LIMITS: Top: 0.08 mm (0.003 in) Second: 0.06 mm (0.002 in)