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Johnson 90
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| flboy0638 |
Posted on 03/25/09 - 3:56 PM
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ioptfm wrote:
moose wrote:
pro look at it and do the impellor and a good service to the engine Mike
Just a thought, but is it possible that the motor has gone into the low rpm safe mode due to over heating due to lack of water flow. I agree..spend a few hundred bucks and get it fixed properly instead of spending mega bucks down the road for major damage
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The above safe mode due to overheating sounds scary. I hope that is not the problem.
Anyways, here is what I have done today. I went to marine shop and bought the recommended Johnson Carb Cleaner and Johnson Fuel additive. I put 1 ounce of the fuel additive in my Gas Tank and ran for an hour. Throughout the engine running I squirted a burst of carb cleaner in the air intake. Short bursts for a total of 6 or 7 squirts. Ill take it out tommorow and see if it will accelerate without me choking it. I hope it cleaned the carb enough for me to make it through this year....
P.S. The johnson dealer today described my lack of accelaration scenario today. He even knew that I have to choke it to go fast. Anyways, he said I need my carb rebuilt. The bad part is he wants 450 dollars to do 2 carbs..
More to come....
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| moose |
Posted on 03/25/09 - 4:26 PM
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Shop around. A local independent with a good reputation might be able to cut that in half.
If it runs better, or well enough to use after the cleaners, keep an eye on the plugs. If they are burning lean you will see the light color and if you keep running it that way it will cause you grief and big bucks. If you get a manual you could possibly rebuild the carbs yourself. It isn't brain surgery. It only requires you to work in tight, frustrating places and follow the book.
Mike
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| flboy0638 |
Posted on 03/25/09 - 6:17 PM
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I just got off youtube watching a few carb rebuild shows. I am also creating a document on "how to" rebuild a carb from all the help and info im reading. I am no mechanic but I am going to try this. The worse I can do is not be able to do it and have to take the carbs to someone and pay right?
I failed to give some important news earlier. When I was cleaning the carbs today and spraying carb cleaner in the 2 vent intakes to the carbs. The bottom vent caused the motor to increase RPMs as you would think. The top vent produced no reaction from the motor. Reason to worry?
Edited by flboy0638 on 03/25/09 - 7:12 PM |
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| flboy0638 |
Posted on 03/26/09 - 6:01 AM
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I just ran the boat early this morning. The fuel additive and carb cleaner did not help the problem. I still have to press choke to accelerate. I called good ole mikes marine in panecea florida and he is printing me up the carb breakdown since the "seloc" manual does not give me what i need. I also searched this site and found some good step by steps. if u guys do not mind i will post some pictures here if i run into problems. I plan to take pics and do an instructional for future newbies like myself. Im sure you guys can correct my step by steps if i misquote a procedure.... This can be my thank you to all of you that have helped me.......
more to come!!!!
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| flboy0638 |
Posted on 03/27/09 - 5:19 PM
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First carb is soaking overnight in johnson / evinrude carb cleaner.... Will finish in the morning and do the other. Report coming soon.
Any things I need to inspect while the carbs are off?
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| Joe Kriz |
Posted on 03/27/09 - 5:38 PM
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How did the carbs look when you took them apart?
How was the gasket between the two body halves?
The reason I ask is the old gaskets used to be black and they disintegrated into pieces. OMC then changed to brown gaskets for the newer fuel. Not sure what year they did this but I remember I had to change my black gaskets out for the new browns ones.
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| flboy0638 |
Posted on 03/28/09 - 4:43 PM
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Joe Kriz wrote:
How did the carbs look when you took them apart?
How was the gasket between the two body halves?
The gaskets were tanish grey/brown
I saw clogged high speed jets. Both
I got both carbs back on and it screams and reacts well. I then towed it to the lake for a drive and i think I must have messed up the throttle cables cause i floored it and it just goes a lil over idle. I can walk back and take the cover off and it screams like it did at the house when I manaually gas the throttle body. I am taking a break cause i was in the north florida rain for 2 hours. Can ya tell im motivated? hahaha We will see what I did to the remote / cables / throttle in a few....
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| flboy0638 |
Posted on 03/28/09 - 5:06 PM
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ok, cant believe i missed this. i forgot to put this back on to the throttle. Its what an arm hits when you gas it and pushes the throttle for more gas.
ok, it wouldnt let me attach the pic but its the lil arm that is part 10 on the carb breakdown printout
Edited by flboy0638 on 03/28/09 - 5:10 PM |
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| flboy0638 |
Posted on 03/28/09 - 5:15 PM
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Thank you all and thanks for this site. Im by far no mechanic but I think anyone can save 450 dollars and rebuild thier carbs themselves.
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| moose |
Posted on 03/28/09 - 6:11 PM
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I'm not sure from the post that you got it going correctly. You do sound excited, so I guess you did. Congrats on a good job.
Mike
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| ioptfm |
Posted on 03/28/09 - 6:49 PM
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flboy0638 wrote:
Thank you all and thanks for this site. Im by far no mechanic but I think anyone can save 450 dollars and rebuild thier carbs themselves.
Well, don't keep us in suspense! is it working? 
Tom
1979 Sport 15' |
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| flboy0638 |
Posted on 03/28/09 - 7:07 PM
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Yes its working now. I went to the lake without installing the piece that screws into the throttle. It has an arm on it. the arm hits a metal bar when you give it gas. I installed the piece and hooked up the water house and it responds great now. That little piece i forgot screws in on the top carb throttle.
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| flboy0638 |
Posted on 03/29/09 - 2:36 PM
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Just got in from the Wakulla River. Gorgeous day! Ran the boat hard again. It will really go now. Yeeee haw!
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| ioptfm |
Posted on 03/29/09 - 3:22 PM
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Don't you just love it when a plan comes together!
Tom
1979 Sport 15' |
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| flboy0638 |
Posted on 03/29/09 - 7:20 PM
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I sure do... Just wish I would have had time to fish today...
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