Yamaha gauge not working correctly

jeremy5780

Petty Officer 2nd Class
Joined
May 8, 2008
Messages
147
My new to me boat with a 2005 F115 has the digital gauges on the console. The gauge that records the engine hours and rpm is not working quite right it shows the engine rpms and it shows engine hours however they are not the correct hours the gauges are the originals that came with the boat they have not been replaced. The engine has a little over 300 hours but the gauge shows 160 and its working because after an hour of use it will go to 161 and so on. How do I fix this?
 

boscoe99

Lieutenant Commander
Joined
Aug 22, 2013
Messages
1,783
We don't even know what kind of digital gauges you are talking about. There are several.

If the gauge indicates 161 hours why do you think the motor has over 300 hours on it? What was used to record those 300 hours?

If the motor had 140 hours time on it when the tachometer was replaced then there will be 140 hours more time on the motor than is shown on the gauge. Is this what might have happened?
 
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