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You still need to check the fluid level. Since the rods retract when no load ( motor on stops) i would assume the trim rams are OK. What we don't know is if the issue is low pressure in the pump body, a problem with the motor to bracket axel or a problem with the tilt ram. There is a pressure...

I am confused. When you say the tank only takes 20 gallons, what does that mean? Does the gas nozzle keep shutting off? If the vent is aft and the tank has any amount of tilt aft, I can see how the vent would not function once the fuel level covers the vent fitting. In addition, fuel will...

First thing to try is checking the oil level in the tilt reservoir just to eliminate that. After checking tilt up the motor until you can activate the tilt stop (lever that keeps motor from tilting down). Now tilt down (activate the switch) and see of the rods retract. If not, try lightly...

Do you know the serial number of the motor? The fact that the tach goes to zero when you power on tells me that the gauge may be OK but the tack signal from the motor is not. I can't look at parts or wiring without the serial number.

If that is not the original tank, it is possible that the original had the fill and vent fittings forward and not aft as it is now and that the new routing of the vent line is not correct. There may be a dip in the vent hose that is holding fuel. The vent hose should never drop lower than the...

In the picture the tack is reading about 650 revs. Is it stuck at that number? If so and it doesn't change when powering on or off, I would suspect that the gauge is bad.

I can't help with that

Ha, if the problem started after filter changes, I would bet that there is an air leak or that you inadvertently reversed the fuel lines. Vheck the hoses first and then remove and reseat all filters and make sure that old gaskets are not stuck to the flange. When you have nothing to do take a...

If thi is an external electric lift pumps you may not need them but I am not sure that is your problem. You may have an air leak or pickup issue or a bad low pressure pump. In general, you should not need to pump the primer bulb of run the lift pump prior to starting except after changing...

Search the web for Grady White owners manual. Grady does a good job of offering older manuals and brochures. Yours may be in the Archived section. .... This may be your manual https://gradywhite.blob.core.windows.net/media/20828/2006-258.pdf

a real mechanic:)

Here is a link to a 208 for sale at the Jersey shore I know this boat very well:) https://jerseyshore.craigslist.org/boa/d/ocean-gate-2001-grady-white-208/7739043337.html

The engine temp is used for the most part to adjust the air/fuel ration richer for a cold motor. I think that a stuck open t-stat would cause the motor to add choke ( more gas). On this post, the motor is slowing down. I see how the TPS could ne an issue but it would have to be something heat...

take a look at this posting https://www.yamahaoutboardparts.com/forum/general-discussion/yamaha-outboard-forum/13360-yamaha-computer-fault-codes-and-readout-2002-f115-efi

I highly doubt that the t-stat has anything to do with the stalling.

Ran for ten minutes at idle speed? Did it gradually slow down or did it just sneeze and die. When it dies can you immediately restart the motor or is it harder to start. Run your test again, You need to know if the IAC valve got fried for whatever reason . Since the motor idles for 10 minutes...

In addition to Awlgrip, Total Boat has some choices in primers for fiberglass and top coats. The top coats have a few color options. As alluded to by Hookup, there may be a need for fiberglass/gelcoat repairs before any priming and painting.

Make sure that if you replace any orings you need fuel resistant type like Nitrile for example

One thing at a time.. If you start bulk replacing parts and there is a problem, you may not know what caused it. Sometimes the new parts are bad.

When the revs go a tad below the spec idle revs, the motors can sputter and what I call sneeze. So the sputter is not necessarily the issue but rather why the low revs? That could be fuel or air in your case. I searched for F115 stalls issues and found several folks who said that the IAC is the...