MEASURING BORE DIAMETER
REMOVING PISTON RINGS
THE PROPER LOCATION TO MEASURE PISTON DIAMETER
CLEANING PISTON SKIRTS OF LAQUER AND CARBON USING SCOTCH BRITE
REMOVING HEAVY CARBON FROM PISTON CROWN WITH A WIRE WHEEL...
DON'T DO THIS TO THE SKIRTS!!
A HONED RD400 CYLINDER: NOTE THE SMALL HOLE OR DE-COMPRESSION PASSAGE ABOVE THE EXHAUST PORT.
USE A DRILL TO CLEAR IT OF CARBON
