There is a Yamaha dealer in Cabo as good friends bought 2 - 15hp Enduros there at the same time I bought mine in Maz. They could not get a 8hp one at the time at the store in Cabo. I guess it had to do with the time of the large Japanese Tsunami.
So check that option out. Ping me if you can't find them and I will try to find a contact number for you.
I gave up trying to find a service
manual on my 8hp endure. If you find a source please let me know