voltage meters

[Tigercat]

On the starboard meter reads 12.5 when you turn the key on. The port meter it pegs out over 18, what could be the problem would it be the regulater?

 

[DaleH]

That's where I'd start ... usually a combo part with the rectifier on Yam motors.

 

[seasick]

Does it read 18 when you just turn the key or when you start the motor?
If the first case, the meter is shot most likely

 

[BobP]

Verify readings with a digital multimeter, a 10 buck unit from Sears sunday sale flyer works fine.

At 18 volts, the electronics, computers, lights, refrig, etc will all self destruct.

 

[Tigercat]

Reads 18 volts even when motors are running.

 

[seasick]

Reads 18 volts even when motors are running.

My questions was: Does it read 18 volts with the ignition ON with the motor NOT running?
If so, gauge is probably bad.

 

[Tigercat]

With the motor not running and the key is turn on yes it reads 18 volts.

 

[Tigercat]

The motors are Evinrude ocean pros 200hp

 

[wspitler]

If it reads 18V with the motors not running. it's a bad meter. Unlikely that a 12V battery can maintain 18V even if over charged.

 

[wspitler]

If it reads 18V with the motors not running. it's a bad meter. Unlikely that a 12V battery can maintain 18V even if over charged.

 

[seasick]

With the motor not running and the key is turn on yes it reads 18 volts.

Guage is probably shot.

 

[Tigercat]

Thanks Guys, I'll pull gauge and replace

 

[seasick]

If it reads 18V with the motors not running. it's a bad meter. Unlikely that a 12V battery can maintain 18V even if over charged.

Not onlu unlikely, it's physically impossible.