I presume so bud, but not sure. I got that aswell, but if you type in the serial number, it is not recognised. Also, is the 10M a 'Marathon' or a 'Magnum' version?
The only thing that I could think of, that site is for the USA, and on the top of my engine, it says something along the lines of, 'not for use or sale in usa'.....!?!?
I think the best thing to do, is to go and see the local 'Mariner dealer', and then I could get a rough idea of price aswell, and gauge whether it is financially viable to upgrade, or cheaper to just buy a bigger engine....
Many thanks for your time and effort mate, it is appreciated, I will update and let you know, if and when I get answers.