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I can't help specifically with your question but your serial number starts with a Zero (0), not an O.

I'd suggest removing the sender from the port side of the motor, remove the central hub , check for corrosion or moisture inside. Clean it out and reassemble. Also be sure the mounting screws are...

I can almost guarantee it's a Chinese knockoff of questionable quality.

Is there a question here? Something's missing...

Been a while for me but I think you're correct in that there are 2 filters, but I don't remember if the re-prime is needed.

The Optimax / DFI oil is the correct recommended oil for your application and is less likely to form deposits than the Premium Plus. That said, you can use either and the 2 can be mixed in the same...

Air runs at 80-85 psi or so, far below what any hydraulic system operates at. So nothing too fancy needed in the clamping department, compared to hydraulics.

Mercury "High performance Gear Lube" (or the same product in Quicksilver Label) is the right gear oil to use. Presumably whatever seal let the water in also let the oil out!

I have an '05 250 EFI, basically similar. I suspect you just need to tinker with the vessel view mobile app, your engine should definitely have the necessary sensors to provide that data. You may...

Yeah, I'd be sure to clean up everything *really* well to see where the leak is coming from before buying a new tank.

Do you have a water temperature gauge and water pressure gauge? If so, what are they reading?
Have you inspected / cleaned / replaced the thermostats?

wrong section.

Brucato would be the next choice for me as well vs. a 100 day backlog.

You'd need a vessel view Link module to take the smartcraft data and convert it to an NMEA2000 signal that the Lowrance could display. If you currently connect your vessel view mobile directly to...

Thanks Don. I have 20 new OEM bolts in hand. Appreciate the info!

1B043974 Port
1B105624 Stbd

2005-ish 250EFI

The service manual I have access to shows 2 different specs in 2 different places... They both agree in tightening in stages (10 lb feet in the...

Well, it was super sketchy doing this on the lift, hanging off the bracket / swim platform, but I got em both done. Thanks for the input Joe!

458703

Wow, really could have fooled me... I would have bet money that they were stainless. Thanks for clarifying!

Thanks. I figured as much but some pictures show the newer PN as a zinc plated partial thread bolt, and the original PN was a full thread stainless bolt.

1B043974 Port
1B105624 Stbd

2005-ish 250EFI

The original head bolt part number 10-859096 was superceded to 8M0045380. Are these directly interchangeable? IN other words, there's 20 bolts per...

The oils are not chemically compatible and should not be mixed. I imagine there could be a risk of sludging or other physical changes that could result in a failure of oil to feed, or failure to...

It's been like that the whole time I've owned it, 8 months, and my guess is the previous owner ran it like that too for over a year. I tapped the pins back in flush with the bracket and have the...

I've been over-thinking this for a while and would like some input from others.

I have a pair of late EFI motors (2005 ish) with the square thermostat covers. The thermostat has a rubber seal on...

Nailed it Joe.

Clearly the retaining pin is missing on both motors, thanks to some meathead who worked on them previously I guess. I tapped the Flat (starboard) side of the upper swivel pins...

I use Quickleen / Quickare as recommended by Don, and typically I run 90 octane ethanol-free fuel. Occasionally I will run 87 octane with ethanol.
The motor has about 280 hours on it but I've...