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Johnson 90
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| flboy0638 |
Posted on 03/24/09 - 4:01 PM
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Model J90TSLEVUA
Serial G04312069
I just bought a boat today and the owner is unsure of the year.
1. Anyone know how I can "easily" look up the year
2. Does anyone have owners manuals for free or all of them are a fee. I tried Johnsons site
Problem why I am here. My boat will not accelerate unless I press the choke. Its like I have to press it or the motor will shut off when I gun it. I have to creep up to high speed and even when I creep up it will still turn off unless I periodicly tap the choke over and over. It runs fine when Idling..
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| Joe Kriz |
Posted on 03/24/09 - 4:15 PM
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There seems to be something wrong with the model number you show.
Are you sure the V is a V and not something else?
It should be one of the following letters.
INTRODUCES
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| Joe Kriz |
Posted on 03/24/09 - 4:20 PM
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Maybe the V shouldn't even be there at all?
If you take out the V.
J90TSLEUA
Then you would have a 1997 Johnson 90 hp motor.
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| theo |
Posted on 03/24/09 - 4:59 PM
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flboy0638 wrote:
My boat will not accelerate unless I press the choke.
So maybe it's starving for fuel. First simple things are change the fuel filter, put fresh gas in it, and check the fuel hose and fuel line (under the cowling) for leaks or cracks or loose connections.
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| Mike |
Posted on 03/24/09 - 5:11 PM
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Along with Theo's advise, you may want to inspect the primer bulb.
-make sure the arrow is pointed towards the engine
-make sure the bulb is in a vertical position, not laying on it's side
I don't know why the vertical vs horizontal makes a difference, but sometimes it does.
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| ioptfm |
Posted on 03/24/09 - 5:13 PM
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flboy0638 wrote:
Model J90TSLEVUA
Serial G04312069
I just bought a boat today and the owner is unsure of the year.
Problem why I am here. My boat will not accelerate unless I press the choke. Its like I have to press it or the motor will shut off when I gun it. I have to creep up to high speed and even when I creep up it will still turn off unless I periodicly tap the choke over and over. It runs fine when Idling..
You don't tell us what kind of boat.............does it have a built in fuel tank.....dual tanks..........give us a little more info to work with
Tom
1979 Sport 15' |
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| flboy0638 |
Posted on 03/24/09 - 5:14 PM
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I just scooted home from the night shift and checked that number for model. Joe is right. No V in there so it is
j90tsleua
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| flboy0638 |
Posted on 03/24/09 - 5:26 PM
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My boat (82 newport whaler) has a built in tank but I do not utulize it. I use a 6 gallon external carry around tank from a known good working boat. I have to clean the onboard gas tank..... I am going to try another tank for the sake of ruling out the external tank im using as problematic. Will start it up in the morning and test under a load. Load being driving in the river..
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| flboy0638 |
Posted on 03/24/09 - 5:28 PM
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I read all of you guys posts. All very helpful. I will apply all of you guys recommendations tommorow and post back here. Thanks a million from a new proud owner of a classic 82 newport whaler.....
More to come........
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| Joe Kriz |
Posted on 03/24/09 - 6:04 PM
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Now we are getting closer.
You have a 1997 Johnson 90hp on the transom. Those are good motors and this model has System Check.
Now we need to know whether this Newport is a 17' or an 18' model as the 17' model does NOT have a built-in fuel tank.
http://www.whalercentral.com/userphot...lbum_id=23
Only the Newport 18' built in 1983 has the built-in 63 gallon fuel tank.
http://www.whalercentral.com/userphot...lbum_id=59
Maybe if you give us your HIN number we will know for sure what year it is.
So, what year?
Newport 17' ?
Newport 18' ?
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| ioptfm |
Posted on 03/24/09 - 6:09 PM
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Also, when you are running the boat tomorrow, if the motor acts like it is choking or not getting enough fuel, then loosen the fuel cap.............at times the tank will build up pressure and the fuel will not flow properly.......
Tom
1979 Sport 15' |
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| ioptfm |
Posted on 03/24/09 - 6:12 PM
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Also, you mention that you need to clean the onboard fuel tank. Check to see if it is fiberglass as many are seeing a breakdown of these tanks with the ethonal mix that is really screwing up a lot of motors. I do not know what type tank that model has, but I'm sure Joe or some of the others will readily know.
Tom
1979 Sport 15' |
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| Joe Kriz |
Posted on 03/24/09 - 6:24 PM
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Tom,
Read my post above yours.
No built-in fuel tanks on the Newport 17' models.
All 17' models have the same basic hull.
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| flboy0638 |
Posted on 03/24/09 - 7:32 PM
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Im glad to hear that Johnson is a good motor. What does "system check" mean in regards to my model motor....
To the questions. 1982. I cant read the hull number (scratched up) ... 17' foot newport and yes the fuel tank is under the captains seat and not built in...
I took note to loosen the cap on my external Gas Tank. Please note I never used the gas tank under the captain seat nor did the previous owner. He always used 2 external 6 gallon plastic tanks with a bulb. Perhaps the engine isnt pulling fuel as well this way? Someone also mentioned to me to use a fuel cleaner because they said these 2 cycle engines get carb buildup. I have no Idea what kind to try though.
Edited by flboy0638 on 03/24/09 - 9:14 PM |
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| moose |
Posted on 03/25/09 - 6:18 AM
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Your description of how the engine runs tells me it is running very lean, or starving for fuel. That is not good. If you run it like that for long you can easily burn a piston, or worse. Cleaning the carbs might be a good place to start.
Mike
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| flboy0638 |
Posted on 03/25/09 - 7:43 AM
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moose wrote:
Your description of how the engine runs tells me it is running very lean, or starving for fuel. That is not good. If you run it like that for long you can easily burn a piston, or worse. Cleaning the carbs might be a good place to start.
Mike
Can the carbs be cleaned first with some type of fuel insert cleaner? If so what type do you suggest?
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| moose |
Posted on 03/25/09 - 9:08 AM
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I'm thinking that since you just bought the boat, if you are not much of a mechanic, and I don't know, it might be a good idea to spend a couple of hundred bucks to have a pro look at it and do the impellor and a good service to the engine to get you started on the right foot with your boat. Just a suggestion.
Mike
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| ioptfm |
Posted on 03/25/09 - 9:33 AM
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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
Tom
1979 Sport 15' |
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| DesertSport |
Posted on 03/25/09 - 12:48 PM
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If the engine IS a 1982-NO "System Check." I suspect it is a 1992. Different animal.
As stated, have a Pro check it out and recommend maintenance.
Either way, that is a GREAT engine. You'll be hard to kill it, if it is maintained.
Prop it to turn a minimum of 5500 at WOT and it will outlive you. Maintenance assured.
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| Joe Kriz |
Posted on 03/25/09 - 1:16 PM
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DesertSport,
We have already determined from above and from his model number, J90TSLEUA, he has a 1997 Johnson 90 with System Check. System Check was first introduced in the 1996 model OMC motors.
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