With plug thread M12 x 1.25. Turn the piston slowly against the stopper, then loosen the nut with slowly increasing force. JMP piston blocking tool.
JMP Piston Locking Tool Spark Plug M14 X 1.25
Piston Locking Tool Spark Plug M12 X 1.25 Fits Harley FXSTD 1450 2000-2003
Piston Locking Tool Spark Plug M12 X 1.25 Fits MUZ Saxon Country 1992-1997
Piston Locking Tool Spark Plug M12 X 1.25 Fits Harley FXDXT 1450 2001-2003
Piston Locking Tool Spark Plug M12 X 1.25 Fits Harley FLTRXSE2 1800 2013
Piston Locking Tool Spark Plug M12 X 1.25 Fits Honda VF 1000 1984-1986
