• RPM at 5282, indicating that the engine is underpropped and causing the software to limit the demand and pulling
back on the RPMs
Nonoptimal propping set up, underpropped
• Alpha SS Mirage 19 pitch propeller. Data would indicate the optimum propping of this boat.
• Demand request by control software at 100%
• Demand request by Guardian at 100%
• Trim position percent at 19.35% optimum trim for this boat
• Demand request by operator 100%
• RPM at 5212 running at optimum speed
Example and the order to set up G3 data for the optimum propping using the parameters shown
Wide‑Open Throttle Propping Without G3 Test
IMPORTANT: To operate the engine at full throttle before the break‑in period is complete, follow this procedure.
1. Place the remote control in neutral, idle speed, and start the engine.
2. Slowly advance the throttle until the engine reaches 1300 RPM (± 100 RPM).
3. Watch all gauges for normal readings.
4. When the engine reaches normal operating temperature, run the boat up on plane.
5. Advance the engine RPM (in 200 RPM increments) until the engine reaches its maximum rated RPM.
Maximum Rated RPM
Engine Model RPM
6.2L (sterndrive/inboard)
223 kW (300 hp) 5000–5400
260 kW (350 hp) 5000–5400
Installation
Page 2B-50 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015
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