Installation manual

90-898305

1-30

Installing Standard Analog Trim Indicator Gauge to Digital Optimax

Engines

NOTE: SmartCraft speedometer or tachometer communicate with the engine

through the gray lead and the brown/white lead in the key switch harness.

This procedure uses one of these leads to operate the Trim Gauge and

breaks the connection between the SmartCraft Gauges and the engine.

SmartCraft gauges will not function with an analog Trim Gauge connected.

The System Monitor, Speedometer and Tachometer communicate with the

engine through a dedicated 10 pin connection on the engine. Using this

procedure to install an analog trim gauge will not interfere with the operation of

the System Monitor, speedometer or tachometer.

However, the digital trim sender must be removed to install the analog trim

sender. The removal of the digital trim sender will eliminate any trim

information from being displayed on System Monitor, speedometer or

tachometer.

1. Tilt the outboard up and engage the tilt support lever.

2. Remove the digital trim sender assembly. Retain screws for reassembly.

3. Install analog trim sender P/N 821180A6 as shown. Route and fasten the

wiring harness at the same locations as the old harness.

4. Connect the Brown/White wire from the trim sender to the brown/white wire

extending from the key switch harness.

5. Cap the digital trim sender wires that remain in the engine harness. Use 2

female bullet caps P/N 13540 and 1 male bullet cap P/N 13541.

6. Connect trim indicator gauge to the tachometer plug on the key switch

harness using tachometer harness P/N 84-86396A8.

Notes

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