Re: RPM Gauge Stopped Working not sure if the yr makes a difference but i have twin 95 150 hp mercs and i had the same problems with my tach and it ended up being a rectifier, there are 2 per motor and the tach wire is the gray one, the tach wire is connected to the upper rectifier, try disconnecting the gray wire and connecting it to the lower rectifier,
is the battery charging ok? |