jomiller1017
14.05.2021 23:39:55
Re: 2000 mercury 200 efi, starvrting for fuel. more
See full version: 2000 mercury 200 efi, starvrting for fuel
Re: 2000 mercury 200 efi, starvrting for fuel. more
Re: 2000 mercury 200 efi, starvrting for fuel. here
Check fuel pressure with the motor running, if pressure is low, i9mmediately shut off the motor and drain the VST into a suitable container watching to see if there is sufficient volume of fuel to fill the VST.
Hook up a pressure tester.
When the motors running or off(key on) the pressure should be the same.41-45#That's the specks I found.
Any lower then the pump is suspect.To make sure contact Mercury service.They will answer you.
Higher then the regulator is bad. [links]
This is what's going on, but first my serial number 0T065877. [links]
Thanks for having me aboard, I came to this place on a referral from a friend of mine.
This is my first EFI outboard and I am having a few issues with it that I wish to get corrected, I do have a manual on the way but I was wondering if there is anything I can do while waiting to get my manual.
1) I am experiencing a rough idle, the best way to describe it is that it sounds like a race car engine with a thumper cam, I just purchased this craft and did a compression check before I purchased it, all 6 are at 135psi, I checked my gauge when I got home by taking a compression reading in my diesel to make sure it wasn't stuck or at least wouldn't go any higher then rechecked one cylinder again, 2 cylinders seem to be at fault, #4 and #5, plugs are significantly darker than the rest, my first thought was a fuel issue, I cleaned the system including removing the fuel cell and filling it with ethanol free gasoline, still had the same issue, I did a leak down test thinking a possible leaking injector, it primed to 38psi and held there before it slowly started to bleed off after just over a 1/2 hour, I started a spark check and made it to the number one cylinder before I had to quit on it for the day which leads me to my second issue, it started to smoke badly, like it was getting way too much mix, I pulled all six plugs out and all of them were fouled, wet, I am pretty sure its mix because I burned them clean with a propane torch and didn't get the reaction you would with fuel soaked sparklers, then I started it again and got the same result, lots of smoke and a stall.
If you guys would not mind pointing me in the right direction and giving me a diagnostic starting point that would be awesome, or if you have any questions first that I can try to answer about anything please feel free to ask, again, I am new to this board as well as EFI so please by all means. be gentle LOL . here
Another important consideration – if you’re someone who enjoys working on your own engine, you won’t easily be able to diagnose and fix a problem you experience with an EFI engine, which requires sophisticated computer diagnostics for troubleshooting issues. [links]
Because of the more sophisticated equipment involved in making them work, EFI outboards cost more than traditional 4 strokes. But, because of their many other advantages, you might find that an EFI engine is easily worth the additional purchase price.
When choosing 4 stroke outboards – depending on the horsepower range you need for your craft – one of the decisions you’ll need to make is whether you want an electronic fuel-injected (EFI) engine or a standard, carbureted 4 stroke.
EFI engines have a clear edge from an environmental perspective. They produce fewer emissions than carbureted engines. However, in recent years, manufacturers of marine engines have made great strides in reducing carbon emissions of their 4 stroke carbureted engines. Most now carry a 3-Star or even a 4-Star C.A.R.B. (California Air Resources Board) rating and are well within current EPA guidelines governing the release of carbon emissions.
On the other hand, when EFI outboards do require maintenance or repair, the cost to maintain and fix them is generally higher. here
Re: Mercury EFI 200HP fuel consumption here
attached some photos of the boat, are the engines the right joice for that boattype,
the boat is supposed to go on daytrips at 3500rpm travelspeed and a distance of 140km back and forth,
unfortunately havent more info about model year and engine displacement yet, will follow once i get from the seller. here
What year EFI's? 2.4 L,2.5L or 3.0L Engines? here
if anybody has an idea or knows how to calculate the consumption or give us further advice or informations regarding these engines, we would be very pleased. more
2 units Mercury 200 hp EFI outboard engines
2-stroke, V6 cylinders, 25" extra long shaft