any takers

[cokeman22]

lets see i got a 2001 johnson 250 on a 23 ft center and the last 2 times i took it out it ran fine for a half hr i blasted at about 30mph then it seemed like the engine wasnt get n gas when ever i went over 1800 rpms or 6 mph it would stall so it took a hr n a half to get back 2 the dock. i thought it was a fuel problem so i replaced all the lines n ball but its still do n it same thing today a half hr good then all bad please any suggestions im stumped?????

 

[cokeman22]

Re: any takers

fyi i put a fuel flow mgr. in too but it ran twice fine but now not so good. maybe a bad fuel filter????

 

[cokeman22]

Re: any takers

someone said carbs

 

[jigngrub]

Re: any takers

I'd replace the fuel filter for sure! Could be gunked up carbs too. How old is your fuel? Could you have water in it?

Maybe trash in your fuel tank that takes a while to get sucked up onto the pickup tube screen, then it'll run like crap until the engine is shut down and sits for a while... then the junk falls off the screen and it runs good until it happens again.

 

[tx1961whaler]

Re: any takers

Ignition component getting hot and cutting out? Put a timing light on each wire when it is being a bad little motor and see if one side is cutting out.

 

[Silvertip]

Re: any takers

Try squeezing the primer bulb when the engine is bogging. If it picks up you have a weak or dying fuel pump.

 

[maxum2400sc]

Re: any takers

I had this same problem. I had a 200hp outboard and out of nowhere it would bog down, then later it would run fine. For no apparent reason it would lose fuel supply. After weeks of frustration I finally traced it to the brass fitting that makes a 90 degree bend coming out coming out of the fuel tank. It was screwed into each other to far. There should have been a 3/8" gap but instead it was closer to 3/16" gap. The mechanic that worked on my boat over tightened to connections. I tracked it down my buying an extra fuel line and hooking it to the engine and slowly un hooking and connecting to different points in the OEM fuel line while the other end was connected into a small 6gal tank. Once it started producing the problem I knew the area to look.

 

[Texasmark]

Re: any takers

I had a problem something like that once. I had put some moisture absorbing additive in my 18 gal built in fuel tank on several occasions. Blasting across the lake one day the engine started acting up and finally died.

In short, the alcohol I guess, in the additive collected a lot of water and made a goey blob that made it's way up to my engine fuel inlet connector thus clogging the fuel line. After about an hours work, floating helplessly across a very windy lake, I found the blob of goo when I removed the fuel line from the engine connector. I pumped the squeeze bulb until clean fuel was present. Put things back together and ala....problem solved.....no more moisture collection additives for me. The product was not Sta-Bil, nor Sea Foam....I use them regularly currently and have no problems.

In retrospect, my troubleshooting had gotten to the point where I suspected a fuel delivery problem and I was going to open the fuel line to pump out the line with the squeeze bulb and see if fuel was getting to the engine. By accident, my problem was right there.

HTH,

Mark

 

[cokeman22]

Re: any takers

ya its definitally a fuel delivery problem . like i said it will run slow but if i go over 2000 rpms it will stall out. the ball still seems hard. i put a fuel flow meter in. it ran twice fine all day but not anymore im gonna try to bybass that first and replace the fuel filter. its just stinks that i gotta put it in the water to test it every time

 

[blifsey]

Re: any takers

I think replacing filters would be one of the first things I'd try.

 

[cokeman22]

Re: any takers

is it safe to run the engine like this i had to run it like this twice so far. it would run great on the blast out and it would take me a hr and a half sputtering back a 5mph

 

[archcycle]

Re: any takers

is it safe to run the engine like this i had to run it like this twice so far. it would run great on the blast out and it would take me a hr and a half sputtering back a 5mph

Maybe. If they are all getting the fuel/OIL mixture then it ought to be fine, but if you have one or two or lots of cylinders that are just running dry then you'll cause damage. Best to get to the bottom of this asap.

If you don't know how old your fuel/water separator element is then replace it. If you don't have one, get one. A small portable tank with its own fittings could help you narrow down the problem if for example you hook up the portable tank and it runs fine. Have you checked for restrictions like the vent on the tank not being open? Anti-siphon valve?

This could be a spark issue. Ignition components behave differently when they've been heated up. Buy a spark tester and bring it with you next time, and when it acts up, check every one for a strong blue spark jumping 3/8". Or bring a timing light and check that each cylinder is firing. Maybe something is giving out and as you start to heat it all up going over 1800 or so it just quits altogether?

It does sound more like fuel though and the first thing to do is check those carbs.

 

[cokeman22]

Re: any takers

Do u think just spraying cleaner in the carbs would help or do I have to dig deep into my pockets and pay someone to take them apart

 

[archcycle]

Re: any takers

Wait a second 2001 you are probably FICHT- fuel injected. Sorry!

You might want to post the model number of the motor to get more help on this.

 

[cokeman22]

Re: any takers

no its the 2001 ocean runner 250 v6 carb one #j250vz555 im get n scared i thought fuel . now im think n vro,power pack, i was hopeing it was fuel filter i replaced it in the begining of the season im gonna try replace n it anyways. i put a flow meter in at the begining of the season too. im gonna bypass that and give it a try. im also going to bring a 6 gal tank with me. should i use that tank to bypass the vro or hook it up to it .

 

[cokeman22]

Re: any takers

i sorry if im getting repetive but maybe i should add that for the fisrt half hr it runs fine 5000+ rpms and the fuel meter reads 8/10 gal a hr but when it acts up the fuel meter goes from 4ish then back to 0 and 4 then back to 0 thats y i think its a fuel problem the first time it did this i replaced all the fuel lines because i thought it was a vacume leak. i should of replaced filter but i took it off and just emptied it. could the filter be a dud. or maybe its the meter.

 

[Will Bark]

Re: any takers

You haven't mentioned that you pulled the fuel pickup tube out of the tank to see it it's clogged up and yes, get a new fuel filter element to go on the water separator.

 

[cokeman22]

Re: any takers

Kinda afraid to but I guess I could give it a shot tanks kinda old I thought It might snap it but I guess ill give that a try also

 

[cokeman22]

Re: any takers

How about some kind of vacume test how would I do that .my manual says disconnect the fuel line from the engine and squeeze the ball and visually check the fuel flow but theres gotta b a better way