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2001 Yamaha Venture Royal Star, not charging battery.


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I have a 2001 Yamaha Venture Royal Star with 114,000 miles on it. Today the bike quit on me and I determined that the battery is not being charged as the battery voltage does not increase past the 12vdc while revving the engine. I disconnected the cable from the rectifier and tested the diodes on all 3 pins and they check out fine according to documentation I found on this site. I also checked the 3 stator pins in the rectifier cable with the engine running and at idle they are around 25vac and when revved up they go to over 100vac.  I am looking for input as to:

·         Are there other tests I could run?

·         If it is the generator would only the stator need replacing?

·         Do I need special tools to replace the stator?

·         Could it be the rectifier?

·         Something else I have not thought of?

Thanks for any assistance,

Lyle

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Sounds like the rectifier, however, make sure you have continuity to the battery and ground from the rectifier, also inspect the connectors really well.  The R/R connector and the stator connector under the battery box are usually the weak points. 

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Hi Crazy Joe, 

I have a question on locating the R/R connector and stator connector. My documentation says to remove the left side cover and possibly the inner cover then find the 3 pin stator connector with 3 white wires. I must be looking in the wrong spot as the only 3 wire connector I see is for the speedo, and the wires are not white. I have inserted a speed adjustment device inline with the speedo connector. I have attached a picture of what I am looking at. Would you let me know if I am looking in the correct spot, or where I should be looking. I did measure 12 volts on the connector at the rectifier and the  pins look good.

I really appreciated the quick response to my original post, and "thanks for your service"!

Lyle

MotorCycleLeftSide2.jpg

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Thanks for the call Joe, I really enjoyed talking with  you.

I did as you said and removed the radiator overflow container and found the connector when I was looking from the right side of the bike, not the left! The connections all looked good. The venture article you linked me to had a nice picture of it. Actually I had been referring to that article before and missed the stator connector pic.

I am going to order a rectifier.

Lyle

 

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13 minutes ago, lyleh said:

Thanks for the call Joe, I really enjoyed talking with  you.

I did as you said and removed the radiator overflow container and found the connector when I was looking from the right side of the bike, not the left! The connections all looked good. The venture article you linked me to had a nice picture of it. Actually I had been referring to that article before and missed the stator connector pic.

I am going to order a rectifier.

Lyle

 

Cool beans, was a pleasure talking to you as well, us Venture riders have to stick together. 

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  • 2 weeks later...

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