Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 52Get this manual
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BF50mBF5A a PISTON
STANDARD TOPISECOND 0L 0.15-0.35 mm (0.006-0.01 in) SERVICE LIMIT 0.50 mm (0.020 in)
Before measuring the end gap, use the piston top to position the ring so it w