1972 Evinrude StarFlire 125 HP Outboards Service Manual, PN 4822, Page 59Get this manual
EE WHITE STRIPES THICKEST SIZE)
SELECTING THE CORRECT RINGCrankshaft replacements do not require ring fitting since each new service crankshaft is already fitted with six seal ringsInstances in which seal ring has been broken accidentally during repairs are easily remedied by measuring the thickness of the original ring with 0-1 inch micrometerAI ways measure the ring near its outer edgeUpon determining the thickness of the old ring, install new ring that matches this thicknessThree different thickness seal rings are available(See SEAL RING IDENTIFICATION CHART SEAL RING IDENTIFICATION CHART SERVICE PART NOWIDTH IN INCHES IDENTIFICATION MARKINGS 310044 310045 310046 .1565 to .1570 .1575 to .1580 .1585 to .1590 ONE white stripe TWO white stripes THREE white stripes
' TWO WHITE STRIPES (MIDDLE SIZE)