Mikey's new to him 1980 650

[Mikey]

Shouldn't be the same. From the factory 75 are off on reserve with the closer bolt spacing 80 are vacuum with wider bolt spacing. Parts don't interchange.
Many have converted the late vacuum to aftermarket off on reserve from MikesXS and other vendors with similar.
I buy my petcock rubber "valves" from yamaha always found the aftermarket were too thin.

Do they look like the one Mike's has to sell or the other parts from of the parts fische

 

[gggGary]

Do they look like the one Mike's has to sell or the other parts from of the parts fische

???

 

[Mikey]

???

This looks like a vacuum petcock rebuild kit ?

 

[Mikey]

This looks like a vacuum petcock rebuild kit ?View attachment 194639

This ones from Partzilla

 

[Mikey]

This is what's

on the 75

 

[Mikey]

This is what'sView attachment 194647 on the 75

This is what's on the 80 they look similar suppose one of the PO switched the 80 petcock to an earlier one?

 

[Jim]

View attachment 194648
This is what's on the 80 they look similar suppose one of the PO switched the 80 petcock to an earlier one?

Yep. Here's a vac. petcock off an 80SG...

 

[5twins]

No, it's not an earlier one. They won't fit because the mount hole spacing differs. Measure between the screws, you'll see what I mean. It's an aftermarket manual replacement. Not sure where you can get rebuild parts for that, or if you even can.

 

[Mikey]

No, it's not an earlier one. They won't fit because the mount hole spacing differs. Measure between the screws, you'll see what I mean. It's an aftermarket manual replacement. Not sure where you can get rebuild parts for that, or if you even can.

Time to take a walk back out to the garage and see what I need to do next
Thanks guys !!

 

[Jim]

Mikey, I think I've got a rebuilt vacuum petcock.... I built an extra for my 80. 2 yrs in on the one on my bike and it's working fine, so I don't really need the spare. Let me know if you're interested and I'll have a look around.

 

[Mikey]

View attachment 194652 View attachment 194653 View attachment 194652 View attachment 194653 View attachment 194652

Time to take a walk back out to the garage and see what I need to do next
Thanks guys !!

I measured from the center of the screws on both petcocks it seems close but I'm no expert on these (or most other things too)
Even the drain plugs look to be in the same location ?
Edit: I first measured between the screws and then set down the micrometer to make it easier to read

 

[Mikey]

Mikey, I think I've got a rebuilt vacuum petcock.... I built an extra for my 80. 2 yrs in on the one on my bike and it's working fine, so I don't really need the spare. Let me know if you're interested and I'll have a look around.

I'll take you up on that offer and as always I am in no hurry
Thanks

 

[Mikey]

I'll take you up on that offer and as always I am in no hurry
Thanks

I've been trying to get 2 out of 3 bikes running before the 16th so a friend from Cal and my self can go for a day trip or 2
But I have a nephew who is bringing his Harley over tomorrow so I'm covered for now
That's what nephews are for

 

[Jim]

Well that was easy. Was actually where it was supposed to be...

 

[gggGary]

The screws we are talking about are the ones that mount the petcock to the gas tank. not the trim ring screws.

Early non vacuum are 42.5mm
https://www.mikesxs.net/yamaha-xs650-petcock-oem-type-non-vacuum-lh-oem-447-24500-02.html
Late model vacuum are 46mm apart
https://www.mikesxs.net/yamaha-xs650-petcock-non-vacuum-type-oem-447-24500-02-00.html

 

[Mikey]

The screws we are talking about are the ones that mount the petcock to the gas tank. not the trim ring screws.
View attachment 194657

Just for curiosity's sake I'll measure them too

 

[Mikey]

Well that was easy. Was actually where it was supposed to be...


View attachment 194656

Let me know what you need for it (and don't short change yourself)
I'm learning guys and thanks to all of you

 

[Mikey]

Just for curiosity's sake I'll measure them too

And the difference is

 

[Mikey]

Just for curiosity's sake I'll measure them too

And the difference is

 

[jetmechmarty]

I usually buy stuff like peacock rebuild kits from George Fix. He has competitive pricing and ships immediately. I’ve been buying parts from him for almost as long as I’ve had internet. He sells the K&L stuff.