US90 engine stamp? Anyone know exactly where it is?

[afdfirefighter]

Does anyone know where the serial number is stamped on the US90 and ATC90 engines? I have searched the forums and internet with no success. Or if someone has a picture of theirs that would be great too. Thanks in advance.

[rg97]

Uploading a pic now, will have it in a sec

[rg97]

It is right below the hi-low switch cover and back in about 2" . Look at the bottom right of the PIC. The fuel line in pic #1 is blocking it a bit
The engine is my ~160 stroker big bore
http://i1362.photobucket.com/albums/r696/rg97/DSC00106_zps7f666604.jpg (http://s1362.photobucket.com/user/rg97/media/DSC00106_zps7f666604.jpg.html)
http://i1362.photobucket.com/albums/r696/rg97/DSC00109_zpsa844cac2.jpg (http://s1362.photobucket.com/user/rg97/media/DSC00109_zpsa844cac2.jpg.html)

[afdfirefighter]

It is right below the hi-low switch cover and back in about 2" . Look at the bottom right of the PIC. The fuel line in pic #1 is blocking it a bit
http://i1362.photobucket.com/albums/r696/rg97/DSC00106_zps7f666604.jpg (http://s1362.photobucket.com/user/rg97/media/DSC00106_zps7f666604.jpg.html)
http://i1362.photobucket.com/albums/r696/rg97/DSC00109_zpsa844cac2.jpg (http://s1362.photobucket.com/user/rg97/media/DSC00109_zpsa844cac2.jpg.html)

No kidding! Wow thanks rg! I should have quite a few stamped then lol

[afdfirefighter]

Uploading a pic now, will have it in a secfound out I have a few cases with us90, an atc90 and unstamped ones?? Ever seen that before?183969

[Kickstand 1]

Yes it's common.

[afdfirefighter]

Yes it's common.

Kickstand: What is the significance behind that? Is it an aftermarket possibly? I thought all originals were stamped...

[blue27]

if you bought a replacement case from Honda it would not be stamped

[oscarmayer]

non-stamped would have been when they purchased new cases or engine was purchased or replaced outside of one that came with machine. so if your cases have no stamp, the engine either had ether had a bottom end case replacement or, the dealer replaced the motor for what ever reason. (someone themselves coudl have purchased engine from dealer)