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I wondered about that also on my 2003 330 - thanks. As an aside comment - the CO2 sensor will also start intermittent beeping when battery power is getting low. It's my warning alarm to turn on the generator when I'm on a mooring!

Probably a sticky float on he sending unit - hopefully frees up with use. Time will tell.....

I totally agree with Doc Stressor. Like I said, mine lasted 1800 hours and I used the "Repair Kits" offered by Yamaha to replace corroded parts about 5 years ago. They were pretty reasonable, but labor costs certainly added to the bill. With your low hours, might be worth looking into...

My 225's lasted 1900 hours and 18 years. Your hours are much lower, but the time is about the same. Salt corrosion is relentless and plays no favorites!!!

Weird one?!?! I normally run my 330 250 Yamahas at 2 bars for best efficiency at speed and use the trim tabs to level the boat port/starboard. You said the trim tabs were "calibrated". If so, the following may have already been done. The trim sensors on the engines are spring loaded...

I'm not sure that the conflicting replies have helped you much. Nothing beats trying 330's out for yourself before buying or going for a ride with a member. If you were in SoCal, I'd give you a demo ride in a heart beat :cool: .

Easy - it's located in the front section of the below-deck cabin compartment where your thru-hull valves for your wash-down, bait pump and head discharge are located.

Thanks - got it.

Thanks for this explanation. Question - if the starboard battery switch is on "both" and the port battery switch is off, I assume the house circuits will work. If on the hook or mooring and the starboard batteries go dead from the house draw, will I be able to turn on the port battery switch...

Seems like you'd run 250's at 65 - 70% of throttle to get that speed. From all that I've experienced and heard - that's no sweat for the Yamaha's.

Addendum - my original 225's lasted 18 years - about 1900 hours. My performance figures were dead on the same as yours. I did catch the corrosion problem about 5 years ago and replaced the necessary parts with the Yamaha corrosion kit. One engine came unbuttoned earlier this year just...

Yes - they are the 4.2L. I may have got the last two available in SoCal, when I bought them a few months ago - lucky.

I just repowered my "03 Express 330 from the original 225's to 250's, heeding the power rating. I live is SoCal and regularly fish Catalina Island (30 miles away) or San Clemente Island (60 miles away). I have 25 hours on the new motors, so may not yet be fully broken in, but looks like the 30...

Impressive work - thanks for sharing!

I just repowered with two 250's - I'll swap you invoices :cool: . Seriously, I agree with above - if you plan to love your boat for another 10 years, go for it!

When I bought my first boat 40 years ago. a wise friend told me: "Once you own a boat, everything else seems reasonable." He wasn't wrong :cool:, but I wouldn't change anything. Boating friendships, experiencing the sea and its wonders, teaching kids/grandkids to fish, weekend island trips...

While we’re on the subject of “head operation” and an FYI - the mushroom head on the hull that serves as the vent hose exit, has a metal screen on it. Over time the screen can clog to the point that the venting function stops. This can cause a real mess when you pump out and pressure builds...

I used black plexi on my NSS Evo 9 (right). I'm happy with it.

I have a 2003 as well. Check out the rub rail where the lifting straps are located, assuming the boat has been hauled out before. Carefully re-caulk top and bottom edges with clear silicone.

It's hard to believe, but my 2003 330 Express still has original bilge pumps, float switches, washdown pump and fresh water pump - and they work great! I have spares - I know I'll need them someday?!?!