Agree with
@Neutron , but to answer your question... 'normal' is in the eye of the beholder. For me, no, I'm not considering that normal. Yamaha's view is (we have been told) that some water leakage should be expected. Many have traced leakage to the rub rail and any number of fittings (scupper, bilge plug, etc.). Each may not be sealed properly, lacking a gasket, etc. Tracing it is an art...
That said, if you are out all day and there is a reason for water in the bilge (like, say, a rainstorm, where the cupholders at least that drain to the bilge get filled, or a sub move that dumps a bunch of water into the ski locker, etc.), that may not be all that bad. And it won't sink your boat (as long as your pump is working).
So, what I would recommend:
1) First, check your bilge pump and verify that it is working correctly. You can put the boat on trailer and crank up the bow, filling the engine compartment with water from the inside to ensure that the pump kicks in and pumps it out. When I took delivery of mine new, the pump did not work (turns out it was a faulty circuit breaker).
2) Then, be sure you are pulling your bilge plug after every outing. If that is not part of your routine, it should be. If your accumulation there was from several outings, you may have a very slow leak...
3) If the water is excessive or bugs you, go leak locating. First step is to crank up the bow again on the trailer and fill the engine compartment and bilge with water. Observe from the outside from where water comes out. Be careful you don't put in so much water as to flood the engine. Wherever the water is leaking from, examine that to see why. Second step (to find rub rail issues) is to allow the bilge to dry, then sprinkle baby powder in the aft bilge area. Take the boat out and see where the leaks have created paths in the powder. Pull the rub rail there and reseal underneath.
4) Consider a backup bilge pump. I added a second--it is cheap insurance.
Hope that helps.
