Installation manual

90-898305

1-32

Installing Standard Speedometer Gauge to Digital

Optimax Engines

NOTE: The digital speedometer sensor must be disconnected to connect the

analog speedometer. The removal of the digital speedometer sensor will

eliminate speed information from being displayed on System Monitor and the

SmartCraft speedometer or tachometer gauges.

1. Remove the speedometer pressure hose (black) from the speedometer

sensor.

NOTE: Coupler connection will be inside the cowl on 200/225 Hp models.

2. Install coupler P/N 22-859747 on the end of the speedometer hose, this will

allow a direct connection of later style Mercury speedometer.

NOTE: If older Mercury or after market speedometer is used, barb fitting

adapter P/N 22-859731 must be installed into the coupler.

Rigging kit P/N 881120A1 includes all the parts outlined in this Advisory to

connect analog gauges to the engine, except the 4 wire temperature sensor

P/N 13536A14 and the TAN temperature sensor connector wire P/N 84-

88824A 4.

Notes

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