1979 Qt50 Regulator CDI placement

1950 Special Deluxe /

I am trying to sort out items in the battery location.

I know where the battery goes, I figure the CDI slides into the plastic part.

I see on the parts list there is a bolt for the Regulator.

I cannot figure out how that mounts.

It is a 79 so it only has the diode type regulator.

Could someone take or post a picture of how it all fits together.?

Thanks

Re: 1979 Qt50 Regulator CDI placement

Where, exactly, is the mount? I can probably snap a picture for you.

Re: 1979 Qt50 Regulator CDI placement

1950 Special Deluxe /

I think based on the wire length, it must be behind the battery somewhere.

thanks

Re: 1979 Qt50 Regulator CDI placement

Maybe this works? Anyway, looks like there's a spot for it on the plastic battery holder on the other side of the battery.

cdi2.jpg

Re: 1979 Qt50 Regulator CDI placement

Jack Rutherford /

That's the rectifier. The regulator attaches to the frame on later model qt50s under the seat on the right side.

Re: 1979 Qt50 Regulator CDI placement

1950 Special Deluxe /

Thanks for both responses.

Between the 2, I was able to sort out both the answer and the proper question.

I was actually referring to the rectifier. (My Bad)

My Qt is a 79 and from what I can sort out (please correct me if I am wrong) is that the rectifier is all I have.

Thanks again for the picture and the video.

Re: 1979 Qt50 Regulator CDI placement

Jack Rutherford /

You don't have a stock regulator but can add one if you want. If I recall correctly, you just splice it into the blue wire coming out of the stator (lighting wire) and I drilled a hole in the frame and I think it just grounds to the frame. Or you can go with an aftermarket regulator that probably has a separate ground wire.

On your model, the battery acts as the only regulator but if it ever goes completely dead, it won't serve that function. That's why Yamaha probably decided to add a separate regulator on later models (redundancy to save headlights and other lights from blowing).

« Go to Topics — end of thread

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account