Yamaha F350B - Engine ECM; PTT Protection Control

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Engine ECM
Engine ECM
PTT protection control
PTT protection control system prevents damage to PTT unit, bracket and other related components
when the engine speed becomes excessively high while the outboard motor is raised higher than its
trim range. The engine speed is limited to the given rpm or below by the system if the PTT sensor output
voltage exceeds the specification value.
Model
PTT sensor output
voltage (or higher)
RPM limitation
F350BST, F350SA 6ML
2.1 V 1600 r/min
FL350BST, FL350SA 6MM