When I did my conversion, I got a used one of ebay pretty cheap

 

I grabbed an OEM NOS on eBay too. If you know which one you want you can get aftermarket cheap. But you have to know which one. I forget now but I think there's red and blue and they use different vacuum pressure levels. If the used one you bought was right for your conversion then there should be a paint dot on it you can just order the same aftermarket one.

 

That's what I did.
Now I've ordered a DS unit,


http://www.jpcycles.com/product/370-026

 

eBay is good about returns. Just go back and return it. Everything has 30 days if you're within that window. You usually don't have to pay return shipping either.

 

Yup, had the rubber diaphragm rot in my VOES after 18 years and 175,000 miles. Can't imagine why.

 

Mine was soaked in gas. Not even sure how it's possible but it was.

 

Wise choice, it's bad.