Throttle up issues...

[Uncle Rickers]

Hit the River with the oldest boy for a morning of being blown around. I'll post those results in the other thread, we managed to work our way almost to the 91 bridge. Upon starting back upstream, and ship-shaping the vessels, I fed in the ponies. All was well for about a minute, when it slowly reduced speed and stalled. Knowing with the wind the trolling motor wasn't going to get us home, I hit the key and she fired right up. I idled up river just hoping she'd stay alive far enough. Nearing the ramp, I stuffed the gas again, and she responded, then repeated the downward RPM thing, this time I caught it and kept her alive to the ramp. She starts fine, idls smooth, but will not accept full throttle. Is this what happens when the poop gas we use goes bad, or does it sound like something else. Plugs are those NGK tipless type, and they are clean and bright. She's a 1991 Force 85 and have NEVER given me one hiccup before.

[seabass]

fuel filter?

[JayW]

Sorta sounds similiar to what my 6 hp was doing. At low speeds she worked fine but give her more gas and she wouldnt allow it. Crazy helped and said it was the super jet (I think). Anyways it was gummed inside the carb. Its getting fixed right now. Yours could be anything as Im no expert at all with outboards.

[Uncle Rickers]

Thanks guys. Like I said, it takes full throttle like always, boat comes on plain, all is well, for about 30 seconds, rhen she dies out.

[JayW]

Post on iboats.com They know a ton about boats

[breeze]

Post on iboats.com They know a ton about boats

and get flammed in the process becaue you don't know as much as they doGrinning1

[Uncle Rickers]

Pls explain "flammed"?

[breeze]

I don't want to hijack the thread, basically I had expalined what I did yesterday. And because it was the wrong thing to do (i did not know this at the time) I was called "ignorant", and there were statements like "i cant bleeping believe what i'm hearing". It just rubbed me the wrong way that they came off like that, especially since one of them had been helpful to me the past few weeks. "Flamming" (flame-ing) is pretty much ripping someone on a public fourm.

But now onto my next thread....Beerchug

[danderson]

a dirty carb is generally the source of your engines unhappiness. try taking a look at the fuel pump on the side of the engine too.

[grizbear13]

Thumbsup My motor will be happy tomorrow because the carb is in the carb cleaner getting a beauty bath, Did my generater carb and my NEW 9.9 FOUR stroke after the crap gas screwed them both up . I put a water seperater on the four stroke and it has been fine so far. Good luck, my twenty didnt want to take the gas so that is why the carb went in the cleaner. Beerchug Fishing1

[breeze]

Thumbsup My motor will be happy tomorrow because the carb is in the carb cleaner getting a beauty bath, Did my generater carb and my NEW 9.9 FOUR stroke after the crap gas screwed them both up . I put a water seperater on the four stroke and it has been fine so far. Good luck, my twenty didnt want to take the gas so that is why the carb went in the cleaner. Beerchug Fishing1

Please explain this one. Are you soaking your carb assembled? Or did you tear it down? I'm planning on tearing mine down soon as my kit comes in and cleaning it.

[grizbear13]

Please explain this one. Are you soaking your carb assembled? Or did you tear it down? I'm planning on tearing mine down soon as my kit comes in and cleaning it. Thumbsup Took the carb apart and removed all parts that would get ruined by the cleaner , gaskets, and all plastic parts. don't clean the float or the needle.. all my parts were reusable so no kit this time. Reassembled to day and it runs like new, was the simplest carb I ever took apart in 50 yrs.. good luck and soak it for atleast 24 hrs and then rinse with HOT water and blow out any excess water..Thumbsup Fishing1

[Uncle Rickers]

Did not want to take anything apart until I had parts. Obtained them today in Worcester at MarineUSA. Awesome place, I found my next boat. Anyways, $5 later heading back home. Fuel pump is a three section deal. Filter of screen on the inlet side, showed lots of rubber like particulates, soaked and blew that clean; next is a diaphram, no tears, but it did not look like the new one. All attach to the block with a standard gasket. Assembled the PITA, no room, pumped up the bulb, she fired instantly. Next is a trip somewhere to let her loose. Hopefully tomorrow AM, somewhere that I can fish also.

[Uncle Rickers]

OK, need more input. Did the fuel fitler thing, there was caca on it, changed the diaphram and gasket, took her out, all seemed just perfect, problem gone. Well, from the North end of Brimfield Res, I stuffed the throttle to motor home, made it about half way to the old bridge, must be a half mile anyway, RPM's slowly diminish as before. The 85 horse takes half throttle , boat plowing hard thru water, with no issues whatsoever, but total wide open after a few minutes it does not like. Fuel bad? Fuel low, although I just added 6 gallons? Would seem it's not the plugs, motor never misfires, just looses RPM's at WOT. HELP.

[seabass]

check if theres any sludge in your gas tank...and where the petcock picks up the fuel.

[moi]

My son had a motor a few years ago doin' the same thing, Ran great until goin' wide open. Finally, discovered that the fuel lines were collapsing at max throttle. Replaced fuel lines & problem solved. Don't remember what brand mtr.

[grizbear13]

Smashhead TUFF PROBLEM PAIN IN THE @SS CHECK THE FUEL LINE CONECTIONS AS THEY COULD BE SUCKING AIR, CHECK THE FUEL TANK VENT IF YOU HAVE ONE,CHECK THE FUEL LINE BALL TO MAKE SURE IT IS NOT COLAPSED,ALSO THE FUEL LINES AS THE ALCHOHOL SCREWS THE RUBBER UP PRETTY GOOD ,AND ALSO THE FUEL PICKUP IN THE TANK CAN COME LOOSE WHERE IT CONNECTS TO THE FUEL LINE AT THE FUEL LINE CONNECTION, My old inline extra filter got disolved by this crap gas and I couldn't even pump up the ball because of the air leak therfore mo fuel..Good luck and sorry for the caps ,to lazy and old to retype..Fishing1Fishing1