Carburetor question Yamaha 100hp 4 stroke

[RickBomba]

#^&#^&#^&#^&y and I just picked up a boat with around the same year engine with about the same hours (it's a 140).

It runs fine at low speeds. I don't think that the carbs would need to get "broken in"

Aside from that, the engine seems pretty awesome.

[numbskull]

Check the fuel system for air leaks

[macojoe]

ck for leaks as stated, change all filters, new gas (is it 2 years old?) new plugs. I would also put some marvel mystery oil in plug holes and let sit for a 1/2 hour then start and run, will lube and losen any rust and stuff from sitting for 2 years not winterized.
I always ran yamaha and they are great motors!!
Good Luck!