Need Help with 1982 25hp Evinrude Carb..

[bonz_d]

Re: Need Help with 1982 25hp Evinrude Carb..

Very simple , the man states that he was told that the 25 HP split unit is not capable of standing up to the extra power.----Read the rambling posts please.

If you go back to post #3 you will see that I have followed this post including his original post to tinboats! Have you read that?

 

[BloodStone]

Re: Need Help with 1982 25hp Evinrude Carb..

Ok, I finally said to heck with it, went over to my fishing buddy's house & dredged thru all the snow over to his barn. I pulled the cowl off my 1982 25hp & looked at the carb (took pics to, but they came out crappy because the camera I was using was crappy).
Stupid question time: Where would the model # for the carb be? The only # I saw was on top of the carb body & it was # 324441. And upon researching it on boats . net, that # came up zippo (went from 1978-1984)! I am beginning to suspect (much to my chagrin) that I MAY HAVE a "Frankenstein Motor" (aka a true "JohnnyRude" cobbled together one piece at a time). It has a johnson cowl & is painted white with some blue showing through where the paint chipped off & a Evinrude metal tag reading # E25CNE.
I hope I am dead wrong on this. :blue:

 

[Chinewalker]

Re: Need Help with 1982 25hp Evinrude Carb..

The stamped number on the carb often (but not always) has nothing to do with the actual part number.

 

[Chinewalker]

Re: Need Help with 1982 25hp Evinrude Carb..

Good research is all that needs to be done.----Look up the lower unit parts on a 1994 28 HP ( prop rated I believe ) and see how the parts compare to the 82 model 25 HP that is not prop rated.--Listening to your neighbor does not always work when it comes to these fine motors.

In my opinion, the 28SPL unit is weaker than the through-hub unit. The 28SPL, essentially the 30hp powerhead on the old 25hp lower unit, was a decent enough motor, but I have seen more than a few with roached lowers due to abuse that the thru-hub probably could have withstood. Again - my opinion, which is worth exactly what you paid for it...

 

[bonz_d]

Re: Need Help with 1982 25hp Evinrude Carb..

BloodStone, even if it is a Frankenmotor I wouldn't be too concerned. I'm certain there are many of them out there running just fine.

Let's go back to the begining as you have nothing to lose and time to do it before we get to soft water again. From what you describe with the choke the engine is running lean which is why it runs better under choke. So either there is a faulty float or a restriction in the fuel supply.

What I would suggest is to pull the carb and tear it apart yourself. 1st of all both butterflies should operate freely w/o any restriction or hesitation. Look over the needle valve under the float and make sure it isn't sticking and that the float is openning completely. Then soak it down really good and then start running a small stiff wire though all the passages, then spray it again and use the straw to force the cleaner through the passages. Then blow it out with a can of compressed air like you would use on a keyboard.

Better yet if you don't mind spending the $20.00 or so buy a rebuild kit and remove all the plugs before doing as I discribed above.

After reassembly and reinstallation try it w/o connecting the auto choke and just use the hand/manual choke. That engine uses a fixed high speed jet and there is no adjustment. Most rebuild kits come with directions to set the low speed jet.

Also while looking over the engine look at all the linkages as there are a lot of hard plastic parts and springs, Look for anything that looks worn or broken and compare with the parts schematic that nothing is missing. If you can post up some clear closeup pictures and I will take a look to see if I can notice anything.

 

[BloodStone]

Re: Need Help with 1982 25hp Evinrude Carb..

Today, Once again, I went out to my fishing buddy's place, trudged out into the deep snow to his barn & pulled the cowl off the motor. Turns out my motor ISN'T a E25ENCE (the transom clamps are), it's apparently (based on the small round metal tag on the engine block) a 1980 Johnson #J25TECSA (which according to boats . net )has a carb #0389723. :uncomfortableness:
The 35hp carb of the same year is #0391122.
Btw, how important is the "Air Silencer"? Because apparently this motor is suppose to have one.
On a side note, on the way to my buddy's place, I saw a beautiful 16' Lowe with a pretty new Yamaha 30-40hp OB motor all sitting outside UNCOVERED! (& here I am pampering an old 80's 25hp JohnnyRude on an older boat-go figure). ] :facepalm:
http://www.tinboats.net/forum/viewtopic.php?f=4&t=33068&start=60 (page5 for carb pics)

 

[bonz_d]

Re: Need Help with 1982 25hp Evinrude Carb..

Sorry can't get to the links for the pictures. Looks like someone replaced a blown powerhead at some point.

 

[racerone]

Re: Need Help with 1982 25hp Evinrude Carb..

Sometimes folks with lots of money and new stuff don't worry about pampering their toys.-------They simply buy a new one to solve any and all problems.

 

[BloodStone]

Re: Need Help with 1982 25hp Evinrude Carb..

Sorry can't get to the links for the pictures. Looks like someone replaced a blown powerhead at some point.

Don't know what happened. I Added a link to tinboats (page5). For some reason, the photos come up there but not here.