A friend of mine bought a Tohatsu 9.9 back around 1990, when no one in the US had heard of them. Day #1, he couldn't get it started. The problem was that the manual had the choke position (open/closed) backwards and once we got past that, it was flawless.
Last week he put it back on a boat
after 14 years in the garage, so he called Tohatsu to ask about a manual and parts
. They have manuals
online for a 9.9b, 9.9c, and so on, and when he told the rep "No, just 9.9, it's about thirty years old" the rep was kinda boggled, but said all the important parts
(like impeller) are going to be the same, just call and they'll check for him.
Good folks, good engines. EFI...just as in cars, it is great, until it goes wrong. If it is made well and doesn't have problems like a nearby lightning
strike, it should go 25+ years without a hiccup. Can't get that out of any carb without repeated overhauls.