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The new three-cylinder RS 4-strokes from Yamaha are fitted with a comprehensive self-diagnostic system that will, upon detection of an electrical problem, display a...

The new three-cylinder RS 4-strokes from Yamaha are fitted with a comprehensive self-diagnostic system that will, upon detection of an electrical problem, display a code on the LCD gauge that indicates the potential source of the problem.

If you should see the warning indicator, engine icon and a two-digit number flashing (in the odometer area, alternating between current mileage and an error code) you will want to record the two digit number so your technician can determine the cause of the fault code.

For example, if there is a problem with the throttle position sensor, the panel will display the warning indicator, the engine icon, and a number 15 or 16 will flash in the odometer display every two seconds (with the current mileage being displayed the rest of the time).

Or, if the number 86 is displayed instead, you’ve just activated the cold engine protection rev limiter. This can happen if you start the sled up and take off with little or no engine warm-up.

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