Has any one of you tried this?
https://www.yamahatriples.com/vacuum-to-manual-conversion/
https://www.yamahatriples.com/vacuum-to-manual-conversion/
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
Petcock Vacuum To Manual Conversion
- Thread starter misiek303
- Start date
or use one of non vacuum petcock fro ebay
https://www.ebay.com/itm/2238125077...kuTCuKGHqZQSuiUEC57AAcIpBMPfdbxhoCaX4QAvD_BwE
https://www.ebay.com/itm/2238125077...kuTCuKGHqZQSuiUEC57AAcIpBMPfdbxhoCaX4QAvD_BwE
I believe 650Skull may have done the conversion some years ago or at the least shared the info.
On the non vacuum ones from eBay or Amazon, make sure of the spacing of the mounting screws/bolts to the tank. 46mm or 42mm.......it makes a difference. I'm running some 46's.
On the non vacuum ones from eBay or Amazon, make sure of the spacing of the mounting screws/bolts to the tank. 46mm or 42mm.......it makes a difference. I'm running some 46's.
There is an XS John mod on here somewhere, in the absolute deepest darkest recesses of the hive, that converts a vacuum petcock to manual. It takes a little bit of careful drilling if memory serves. Skull can perhaps dig it up if he's inclined. (removed ggg) I converted my vacuum petcock to manual simply by removing all the insides. That gives you a 'run' and a 'reserve' but no 'off' position. This was done in a roadside emergency. I later added an inline on/off. My vacuum petcock was always leaking or not responding to vacuum no matter what I did, and now it was leaking like an open hose, and I was never so glad to get rid of something. I had to empty my tank to do the work, and a guy on an ATV came by at a most opportune time and I gave him my gas. He invited me to his yankee Lutheran church and I should have gone there and probably gotten lots of good free stuff. But nooooo......
Last edited by a moderator:
Security certificate expired 77 days ago and counting. Are you trying to blow up this fucking website or what? Count me in!
I drill and tap aluminum adapters myself; doesn't take more tools than a drill press, hacksaw, files, and tap. Commercial items are usually chromed brass, with a coefficient of expansion that matches that of the steel tank more closely than aluminum. My adapter stays sealed, but there was a learning curve. A single 1/4" NPT petcock will feed your motor all it needs and leave more sealing surface on the tank, but they're harder to find than 3/8" NPT.
Ah, more middle school put-down "humor." It never fails to disappoint.
