Question about Evinrude Carb compatibility?

[Johny25]

Could be just a casting number...as I do no find it anywhere as a part number. And as far as the info on ebay.......there was no 20hp made from 77-83 by OMC it was made from 1966-1973 under the Johnson tag and then was made again starting in 1985. Evinrude logo never carried a 20hp until 1985


Lots of bad info on Ebay....just saying

 

[BloodStone]

Johny25 » Tue Feb 04, 2014 1:25 pm[/url]"]Could be just a casting number...as I do no find it anywhere as a part number. And as far as the info on ebay.......there was no 20hp made from 77-83 by OMC it was made from 1966-1973 under the Johnson tag and then was made again starting in 1985. Evinrude logo never carried a 20hp until 1985
Lots of bad info on Ebay....just saying

It's NOT Ebay I am worrying about. It's my Frankenstein motor.
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. The 35hp carb of the same year is #0391122. I took some pics too (see links).
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1272.jpg.html
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1271.jpg.html
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1270.jpg.html
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). ](*,)

 

[shawnfish]

BloodStone » 04 Feb 2014, 15:39[/url]"]

Johny25 » Tue Feb 04, 2014 1:25 pm[/url]"]Could be just a casting number...as I do no find it anywhere as a part number. And as far as the info on ebay.......there was no 20hp made from 77-83 by OMC it was made from 1966-1973 under the Johnson tag and then was made again starting in 1985. Evinrude logo never carried a 20hp until 1985
Lots of bad info on Ebay....just saying

It's NOT Ebay I am worrying about. It's my Frankenstein motor.
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. The 35hp carb of the same year is #0391122. I took some pics too (see links).
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1272.jpg.html
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1271.jpg.html
https://s725.photobucket.com/user/FrankenFraud/media/HPIM1270.jpg.html
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). ](*,)

the 1980 35 carb will bolt right to the 25 manifold intake and as far as the non thru hub and through hub exhaust putting the 35 on the 25hp will work fine regardless, ive done it and it works.. also the late 70's through 84 25's and 35's use the same(99% sure) powerheads,intakes and carbs with throat size being the difference in horsepower. the lowers are different but the 35 hp carb on the 25 powerhead will not put any extra wear on the gears etc.... as far as a newer whatever make motor id take the 70's thru mid 80's OMC any day!!! better built, more reliable and easy to tinker on in my opinion.. 25 carb has a restrictor in the throat, 35 does not therefore 35 lets more air into motor and more air = more power... youll need to change your prop though to get best performance

 

[shawnfish]

as far as the silencer you don't need it but without it it will be louder and ya run the risk of sucking up something in the carb and clogging a jet..... silencers are cheap on ebay and theres usually several...

 

[shawnfish]

#O389723 is correct when you look the 25hp carb up for part number but my factory original 1980 25hp carb has #324441 on the top half and #313355 on the bottom half(bowl float) and I know from experience that theres a lot of carbs from 80 t0 84 with different numbers that will fit the 1980 25/35hp. I believe from 85 on some of the 20/25/30's have same carbs but different intakes..

 

[bamalivin]

Ok guys, please help! I have a 1989 Evenrude tracker 20 hp. I have been looking to find the required carb that would work on my 89. I have been told that 83-88 will work, but I noticed that the part numbers changed dramatically after 1988. I know that I will also have to be on the look out for a 35 intake aswell, but I may be able to get away with simply porting mine (controversial, I know). anyone that can chime in and tell me what years will actually work for me would be awesome, because I sure cant tell from the part numbers.
:?