05 RS Venture Charging problems

[titanzi]

Hi.

My Dad have an 05 Venture with about 4300 miles on it.
It will not charge the battery. No voltage at all over normal charged battery voltage, 12.7v or so.

I have checked the 30A main fuse and it's good.

I have done an Ohms metering on the stator coils with the following result:

1-2 0.3 Ohms
2-3 0.3 Ohms
1-3 0.4 Ohms

Garage at ~60F

Then I have done a AC voltage test from the stator with the engine running with the following results:

1-2 1.5 VAC
2-3 3.4 VAC
1-3 3.5 VAC

The voltage stays fairly stable at those numbers, even at 5-6000 rpm.

The voltage regulator "seems" fine on diode measurements, about 0.5V over all three diodes.

Could it be something else than a bad stator or am I in for a night trying to get the stator cover off?

Kindly
Sebastian

 

[maim]

can you try a different voltage regulator?

 

[titanzi]

I would like to, but a new one is about $200 and it feels like a bit to much for just a test.
Was planing on calling my lokal Yamaha dealer on Monday and see if they have any experience whit these kinds of problems.

 

[maim]

well you could check all the ground blocks hidden in the harness as they do go bad over time and can cause issues like this. sry i do not know where they are but i think there might be one in the loom over by the clutches.

 

[theCATman]

$130 for a voltage regulator thru Sledpartsguy on eBay. I just bought one from him for my Apex this winter.

 

[titanzi]

So I have now removed the stator. What a nice 10h job... Not to hard, just so much to remove.
I think I'm just a few things shy of removing the entire engine. I removed the rear engine mount and loosened the fronts to be able to rotate the engine up a few inches.

Anyhow, take a look at this beauty!

 

[maim]

Yup. That is cooked.