02 mercury 90 hp 2 stroke, tach, volt and fuel gauge issues.

mod10g

Cadet
Joined
Aug 27, 2013
Messages
8
Cruising along and the rpm drops to about half what you were running for just a second and returns, as that happens the volt and fuel gauge drops to zero for about 10-15 seconds then start back working again until it happens all over again. I'm I looking for a loose ground or something else? Any help would be appreciated.
 

oldman570

Lieutenant Commander
Joined
Mar 25, 2011
Messages
1,615
Re: 02 mercury 90 hp 2 stroke, tach, volt and fuel gauge issues.

It sure sounds as though you have a bad connection or a bad rectifier on the motor. Check the fuses on the motor and clean the battery connections and all other connections bright and shiny. Also make sure that the wires going under the flywheel are not rubbing against it. JMO
Oldman570
 

mod10g

Cadet
Joined
Aug 27, 2013
Messages
8
Re: 02 mercury 90 hp 2 stroke, tach, volt and fuel gauge issues.

I cleaned both battery cables real good and tightened them up, had it out all weekend with no problems.
 
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