Petcock for 1980 GSX400

[Oldspooneye]

Can anyone give me some direction on ordering a new petcock for my 1980 GSX400? The bolt holes are 44mm from centre to centre. Is there any other spec I need to keep in mind when ordering? I can find a few that are 44m but for some reason they say they don't fit my bike.

Is there any reason these won't work for me?

https://fortnine.ca/en/k-l-fuel-petcock-18-4359

http://www.ebay.ca/itm/Suzuki-Fuel-Tank-Valve-PetCock-GR650-Tempter-GS300-GS450-Gas-Petrol-/201957299999?fits=Year%3A1980&hash=item2f0597d71f:g:3ssAAOSw8d9Uttk9&vxp=mtr

http://www.ebay.ca/itm/New-Suzuki-GS450-GS750-GS1100-GS1150-Petcock-/192046607035?hash=item2cb6deaabb:m:m_by0zunvUL84tUklz6U2Ig&vxp=mtr

http://www.ebay.ca/itm/NEW-SUZUKI-GS300-GS450-GS550-GS650-GS750-GS850-GS1000-GS1100-PETCOCK-18-4358/201646387672?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D20140620091118%26meid%3Dbd616b61b5154bb8874ee19a0d80774c%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D201646389696

https://www.z1enterprises.com/petcock-vacuum-suzuki.html

Any help would be very much appreciated.

[Nessism]

Any reason for excluding Suzuki as a source for a petcock? https://www.cmsnl.com/products/cock-.../#.WU77Cmj1CUk

[Oldspooneye]

Any reason for excluding Suzuki as a source for a petcock? https://www.cmsnl.com/products/cock-.../#.WU77Cmj1CUk

I called the local Suzuki dealer and they said those are on backorder from Suzuki so it will be 2 to 3 weeks before they can get them in. The riding season in Canada is too short to wait that long. Cost is another reason. I'm having to fix way more on this bike that I ever expected when I bought it so if I can save a few bucks and get a petcock that works all the better.

[Oldspooneye]

Well I decided to go with a universal 3/8 petcock and a universal 44mm to 3/8 petcock adapter plate. This was I won't have to deal with vacuum petcocks failing and if I have to replace the petcock again I can pick one up for $30. I hope I made the right choice!

[tom203]

Vacuum petcocks last a long time...plus no need to remember to turn it on / off. Your 44mm bolt centerline is the most common unit, so lots of those ebay units would work- assuming fitting directions are similar to your original unit.