Mercury MerCruiser 4.3 TKS User Manual page 30

Section 2 - Getting to Know Your Power Package
2. A 90 amp fuse is located on the large post of the starter solenoid. This fuse is designed
to protect the engine wiring harness if an electrical overload occurs.
3. A 15 amp accessory fuse is located on the rear of the engine. This fuse protects the
accessory circuits.
4. A 20 amp fuse may be located in the ignition switch "I" terminal lead to protect the
electrical system. Check for blown fuse if the ignition key is turned to the "START"
position and nothing happens (and circuit breaker is not tripped).
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90-899883179 OCTOBER 2007