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Ahhh understand about the nipple now. Yes the fuel bowl is a little greyed out bcs of age, but i have already squized the primer bulb to fill the bowl. I think im going ro drain the VST tank and see if i can get fresh gas into it.

Glacier, thanks for the feedback, I'll certainly consider the external fuel tank if necessary, but believe the fuel is good, and yes the red ring is all the way at the bottom. What is the best way to purge the fuel all the way to the injectors? There is what appears to be an air nipple...

But wait, I thought that was an emergency over ride switch, allowing the engine to "run" even if say an overtemp alarm was trying to shut down the engine. Just in case you need to motor back to shore.

Ok understand, so that's like an ECU on a car. But dang, have zero idea about the position of the switch. I'll check after this craze lightning filled summer storm in FL.

On the back of the engines under the plastic cover is a module (see pic) that I perceive to be something to do with ignition. Is this a coil? My service manual indicates there are coils at the top of each head that I am not seeing.

Thanks seasick. Ok then throttle bodies it is. If the fuel system is pretty self supportive, I'm going to drain any old gas from the VST so I can get some fresh in there. There is a topple just above the VST, is this used to bleed off any air in the system? If I have fuel, then the next check...

Thanks Mustang, was just fishing to see what he had to say, not really looking to sell right now. Maybe in the future so I can step up to a 32 or 36 foot boat.

I've removed all four thermostats to check cooling flow, they are in a cup with CLR getting cleaned.

Thermstat port.

And lastly, here is a pic of the port engine with the flushing line removed for flushing, This is how Yamaha says you are to properly flush an engine after use, And i pic of the thermostat cover at the top of the head where I can get water to flow from on this engine. The stbd engine will NOT...

I want to flush any old fuel out of the line, make cartain I have it to the carbs, and if it still doesn't start, move on the ignition system.

Stbd engine showing what I believe are carbs.

Port engine side view showing the fuel bowl, VST, and fuel pumps.

Rear view of engines.

Engines

Pics. Boat

Lastly as background. When I purchased the boat, we did a sea trial and both engines ran, pushed the boat to 55 knots at WOT, albeit the stbd hot, hence the survey.

Also, the fuel has been cleaned, and I have new oily/water seperator filters installed.

Ok gents, sorry for the confusion. This is a new boat to "me", not a new boat overall. It was built in 2000 and has twin 200 HP OX66 Saltwater Series engines. When I purchased the boat and had a survey done, the stbd engine ran hot. The dealer agreed to pull the heads and clean the cooling...

Done all that. Used the primer bulb to fill the bowl on the port side if the motor, but still no joy. Pulled a plug and didn't see any spark on it, not certain about outboars as compared to regular car engines.