1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 299Get this manual
MANUAL STARTER
Cleaning and Inspection
1Clean rewind spring assembly with solvent and dry with compressed air2Inspect rewind spring (without removing spring from retainer) for kinks, burrs or breakageReplace assembly if necessary3Inspect cam tension spring for damageReplace as necessary4Inspect starter sheave and housing for nicks, grooves, cracks and distortion especially in area of rope travelReplace assembly if necessary5Inspect starter rope for wear and replace if necessary