Originally Posted by jjk94
Does anybody know if an 1985 Prostar has a resistance Wire somwhere in the harness. Only getting 7 volts at the coil using pertronix. When just 12V from starter switch is connected it shows 11-12v...
Bypass the safety switch, or measure at it's connection points. If it has butt connector splices, replace the terminals, making sure the wire ends are clean and not corroded. If the wire is bare copper, you need to see shiny copper, not black or green from corrosion. Also, look at the connector that connects the boat harness to the engine harness- it's near the main breaker on the engine.