2014 250 ProXS issue 2B087950

[Jimmy Lee]

Ok guys I am still having a problem. I will start from scratch. Towards the end of last year and the first time out this year I noticed random power loss at WOT. I got new plugs, plug wires and fuel filter. After the install I took the boat out and it runs fine at the beginning. After a couple hours and moving around I slowly start to lose power where it is really sluggish on the holeshot. It ends up getting so I weak I can't even get on plane. When I put the new plugs in I didn't check the gap. This past week I pulled the plugs and adjusted the. To the proper gap. Well I took it out this morning and the same thing happened. Ran great out of the first run or 2 then started getting sluggish. It starts and idles fine. Just loses power as the day goes on. Please help! I have a tournament on Sunday!

[EuropeanAM]

Jimmy- any warning horns occurring?

Pumping bulb firm before EVERY engine start?

Always need to start with the basics:

-Compression Test

-Spark Test (and inspect wires/plugs, etc)

-Fuel Quality, Delivery, and Air/Fuel Pressure Tests

-Belt and Tensioner Inspection (tensioner needs to hold 70 lbs/in before end of travel)

-BATTERY condition (load test and verify condition at mid-end day to make sure you're not discharging enough to cause problems)

-Livewells full, is anything dragging (such as powerpoles, etc)?

[Jimmy Lee]

Thank you for your response. No warning horns, I don't think there is a primer bulb. Batteries are all brand new and my volt meter says 13-14. Not sure about the testing you mentioned. I do not understand why everything works perfect at the beginning and then it slowly goes downhill throughout the dat

[Jimmy Lee]

So I am doing some spart plug tests. I happened to touch the spark plug wire while the motor was running and got shocked. Is this normal?

[lpugh]

If they are connected you should not get shocked, ideally if disconnected from the plug no shock unless you touch it right where the boot meets the wire. Best test for leakage is a spray bottle with the motor running

[EuropeanAM]

Agreed- in "theory" you should be able to touch the plug wires without incident. In reality, takes a pretty big pair to go back touching them more than once.

If you wait until dusk and try the spray-bottle method, you'll probably find the leaks pretty quickly.

There should be a primer bulb on this engine, and it should be pumped FIRM before every (single) engine start. Especially critical in temps 60F or above.

[Jimmy Lee]

Question, I was looking at my old plug wires and 1 end of each of them has faded into a purplish color. Is this normal?

[lpugh]

Question, I was looking at my old plug wires and 1 end of each of them has faded into a purplish color. Is this normal?

Yes. test them with a ohmmeter for continuity and water mist for leakage

[EuropeanAM]

Also note that the boots are different colors right out of the bag. Intentionally (also a different boot with a support gusset on the spark plug end).

[Jimmy Lee]

So I did some digging into my fuel tank

[Jimmy Lee]

So I am looking in my fuel tank and found what appears to be the cardboard/plastic seal that is in the underside of a cap from fuel treatment or stabil. What are the chances this getting sucked up against the screen at the bottom of the fuel pickup tube and creating a blockage of fuel? Thanks20210419_181926.jpg20210419_181926.jpg

[EuropeanAM]

It's certainly possible.