Motor problem

[huntingmaniac45]

Went fishing this am, only to turn around due to motor problems. Have a 89 Johnson 30hp, motor runs great till now. At low speeds it runs fine, when I give it the gas she bogs down, spits and sputters, when I roll off the gas she runs fine again. Thought maybe the coils, so when she was runnin bad, I took each plug wire off, and then she ran real bad! Im thinking fuel pump, or carb, I rebuilt the fuel pump, about 5 or 6 years ago, but I use it alot all year. Has new plugs! Any thoughts on this? Thanks!

[jakeo]

Went fishing this am, only to turn around due to motor problems. Have a 89 Johnson 30hp, motor runs great till now. At low speeds it runs fine, when I give it the gas she bogs down, spits and sputters, when I roll off the gas she runs fine again. Thought maybe the coils, so when she was runnin bad, I took each plug wire off, and then she ran real bad! Im thinking fuel pump, or carb, I rebuilt the fuel pump, about 5 or 6 years ago, but I use it alot all year. Has new plugs! Any thoughts on this? Thanks!

Believe me I'm no mechanic but the fuel pump sounds like the culprit. I was up at Wamplers camping a few years ago and a guy that knew Evinrudes came over and helped me. I called the marina on devils Lake and $40.00 later I was back on the water.
Might also try the fuel line sucking air?
Good Luck

[Lwapo]

Sounds like fuel pump or carb (jets).

Easy to test the fuel pump. If you have a line with a bulb on it, pump the bulb while giving it gas. If it doesn't help, then the fuel pump isn't the problem. If it does, replace the pump and you should be good to go.


If not, I'd look at the high speed jet on your carb and give it a good cleaning and/or rebuild.

GL!

[TONGA]

I am with everyone above and more than likely it’s the high speed jet, it’s strait away back behind the plug on the bowl, so you may be able to pull the plug stick the straw on the carb cleaner back in there and clear her without pulling apart the hole works, it’s worth a shot.
So like was said above it’s probably the high speed jet but there is one more thing I have seen a few times on that vintage omc, I have seen a few drop the clip that connects the shaft to the timing plate up under the flywheel on the throttle side. Just have a look and make sure it’s there, you will get the same kind of symptoms. That is a long shot and it’s probably the carb but the few times I have seen it, well lets just say the owners of those motors were pulling there hair out, so I thought it was worth mentioning.

[huntingmaniac45]

Thanks for the reply guys, will be working on it tomorrow. Tonga, thanks for bringing that up, that did happem before about 8 years ago, that little clip fell off and the arm or whatever you call it was not connected. That will be the first thing I look for! Thanks

[huntingmaniac45]

Well thought I would rebuild the carb since its so old, but I think I screwed up good, was cleaning the whole assembley it slipped out of my hand and fell on the floor, hope Tonga can chime in on this one, it feel right on the brass pickup tube that goes into the bowl, there is a large diamiter tube with a smaller tube in the middle of it, it bent the smaller tube over and messed up the opening, am I screwed or what?? Not sure how critical that tube placement and the hole in it is. Tonga can you give me any help?? Thanks

[b2theill]

I don't think that the tube is replacable. Goes directly to your low speed circuit.

[TONGA]

Ouch! I am sending you a PM with my number, we will have to see what I have laying around!

[huntingmaniac45]

Thanks! Will give you a call.

[huntingmaniac45]

Talked with Tonga yesterday, and he said it was shot!!:rant: Waiting to hear back from him, he had to see what he had laying around. Cant believe it, of all the ways it could fall it landed right on that!!:banghead3

[bigpapamike]

I had a similar problem once and it turned out I forgot to open the air vent to the gas tank. I would check that first. keep it simple.

[yellowbelly80]

just a update he had a wire on the power pack grounding out its all fixed seeing he out fished me again last night:rant: