Suzuki 2 Strokes

Hi guys
I checked my owners manual and it states I have a engine and frame number.
I see the one on the identification plate on steering post.
Where do I find the one on the engine?
Thanks
P

Would help to know on what bike. On a GT550 it is stamped on a flat area just above the front motor mount. Don't know about any others

Yes it's the 550 GT, sorry.
Thanks I'll check there.
Cheers

Usually take a flashlight to see cause the headers are in the way.