1978 Evinrude Outboards 9.9/15HP Service Manual, Page 17Get this manual
TROUBLE CHECK CHART (CONT) TROUBLE 5STARTER MOTOR WILL NOT OPERATE POSSIBLE CAUSE ASTARTING CIRCUITSee Section Loose or corroded battery connections Neutral start switch inoperative (loose) Throttle advanced too far Poor or broken battery connectionsWeak or shorted battery Defective starter switch Jammed starter drive Damaged starter drive parts Worn brushes Broken brush spring Burned commutator Shorted or open windingsarmature BEXCESSIVE STARTER CURRENT DRAWSee Section Worn or dry armature shaft bearings Excessive friction in engine Brushes not seating Dirty or corroded commutator Shorted armature Bearing heads buckled
SUBMERGED MOTORS
If motor is lost overboard while running, it should
always be disassembled before any attempt is made to start itOften internal parts are sprung and running under these conditions can result in permanent damageA motor lost overboard in salt water should always be disassembled and cleaned before starting is attemptedSome materials used in modern engines are subject to very rapid corrosion in the presence of salt water and should be inspected to determine if replacements are requiredA motor lost overboard in fresh water can usually be safely started if recovered within twelve hours providing no sand or silt is presentDisconnect the NOTES