1997+ Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-826148R2, Page 189Get this manual

Quality of the image is intentionally reduced!

IMPORTANT: Ports must be deburred after honing CLEANING PISTON RING GROOVES Keystone (tapered) ring grooves
MEASURING PISTON ROUNDNESS

Piston has barrel profile shape and is not tru

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