CHAPTER 8
8-2
OUTBOARD ENGINE
DIAGNOSTIC CHART
Problem Possible Cause
Engine Overheating Water pick-up feeds are blocked by
debris
Cooling system leak
Impeller is damaged or blocked by debris
Propeller is over propped for the
circumstances, causing the engine to
work extra hard
Debris in oil is holding heat more than
normal - bad oil fi lter
Defective thermostat.
Starter Will Not Crank Battery weak or dead
Starter defective
Fuse for electric start relay blown
Control not in neutral
Lanyard not connected to remote control
Excessive play in steering Air in steering lines (Bleed)
System low on steering fl uid
Mechanical parts-loose connection
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