2007 90 hp stator and regulator test

9

951carmine

New member

• May 16, 2020

• #1

i have a 2007 90 hp 2 stroke 1b513442 outboard that is not charging the battery. does anyone know the multimeter tests for the stator and the voltage regulator for this engine?

 

fastjeff

Gold Medal Contributor

• May 16, 2020

• #2

The two (usually) yellow wires from the stator should make around 17 volts AC to ground.

Jeff

 

9

951carmine

New member

• May 16, 2020

• #3

so if i get 17 ac volts on each wire my problem is most likely the voltage regulator? also i forgot to mention the tack jumps around sometimes and sometimes reads normal.

 

Quicksilver

Advanced Contributor

• May 16, 2020

• #4

You will get <> 17v across the yellow wires, if you get a reading yellow to ground you have a problem the stator is an AC generator, the rectifier changes it to DC. The jumping tach makes it sound like it could be the stator.

 

9

951carmine

New member

• May 16, 2020

• #5

i am getting about 17 volts at idle across the yellow wires and the volts go up with rpms. i am getting about 8 volts at idle grounded to a cylinder bolt to a yellow wire.

 

9

951carmine

New member

• May 16, 2020

• #6

measuring resistance from both yellow to ground was a open circuit

 

Quicksilver

Advanced Contributor

• May 16, 2020

• #7

What voltage are you getting across the red + on the rectifier and ground? it should be 13 at 1000 rpm and go up slightly with rpm increase. You should also see 13v across the battery posts.

 

9

951carmine

New member

• May 17, 2020

• #8

there are 2 red wires coming from my regulator both are getting no voltage to ground and no voltage from red to red

 

9

951carmine

New member

• May 31, 2020

• #9

i installed a new regular and the charging system is now working. thanks guys