Recent content by synergy

I have a 2013 GL2274. my tach gauge fluctuate readings. The rpm sounds nor the speed on the motor does not change. How do I test??? Is it the gauge, wiring, or in the motor.

2013 2274GL Something is up with my tach. Lately when I start out in an idle zone my tach jumps between 2000 to 3000 RPM although there is no change in the motor sound. When I get to open waters the tach normally would read 6200rpm but it jumps between 6000 to past 7000 and again the sound of...

I downloaded a free app for my iPhone.