yamaha charging problem

prostockfan

Recruit
Joined
Sep 25, 2009
Messages
1
i'm a newbie so first of all i would like to say hello. got a little issue with a yamaha outboard 70hp, about an 89' - 90' model. it's over charging at higher rpm's. around 15.5 at about 4200 and up. just replaced regulator and it didn't change anything. any input would be appreciated, and if anyone has a wiring diagram for this engine that would be great.
thank you
 
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