140 carbs fit a 90?

[bow2no1]

i found an intake and carbs from a evinrude v4 1996 140hp. will they work on my 85 90hp v4 evinrude?

http://i7.ebayimg.com/05/i/001/38/33/991d_1.JPG

[jody504]

Yes they will fit but you may have to jet them for the motor

[Riverman]

Those are not 1996 carbs, they are circa 1980 or earlier.

[bow2no1]

Yes they will fit but you may have to jet them for the motor

can i just buy jets at the dealer?
what size would be appropriate?


Those are not 1996 carbs, they are circa 1980 are earlier.
ok sorry noob questions....

how can i tell they are pre 1980? whats circa?
being older carbs that that make the more or less optimal for me?

[flabum1017]

If they are 1 3/8" carbs, then they are for a late '70's 140. Somone may have put them on a newer motor for mor performance, but without the extra breathing of a bubbleback exhaust, you may end up with a bog on acceleration.

[Riverman]

can i just buy jets at the dealer?
what size would be appropriate?

Yes jets are available from the dealer. I won't guess what size you need. What is wrong with your original carbs? The 85 won't see much of an improvement because the port timing is milder and the transfer ports are very small.



ok sorry noob questions....

We were all noobs at one time. :)


how can i tell they are pre 1980? whats circa?

Because they have choke plates not enrichener nipples. Circa means "about that date"


being older carbs that that make the more or less optimal for me?

No but if you are going to use them you will need the solenoid that closes the choke when you press the key.

[bow2no1]

[QUOTE=Riverman;1706612]Yes jets are available from the dealer. I won't guess what size you need. What is wrong with your original carbs? The 85 won't see much of an improvement because the port timing is milder and the transfer ports are very small.


[QUOTE]

i have 2 other motors. i'm trying to figure out exactly what i need to bump up my other 90 johnson also an 85
i thought i might start collecting parts now so i'll have somthing to tinker with when i get laid off this winter as i do every year, not because of the economy.

am i going about upgrading carbs the wrong way? or should i look other directions?

also outboard parts seem to be easier to get in the summer months also on ebay. i was worried if i don't jump on an opportunity now i might not have an other.
but then on the other hand i havn't really looked to hard to parts in the winter either.

truth be know i should probably leave the damn thing alone and just run it the way it is, but that's just no fun lol

Thanks for answering all my questions!
any other forum members wouldn't bother.
you guys certinly make this forum look great to a noob like my self.

[Riverman]

It's best to start with a 140 and go from there. You can start with an 85 and do all the work required to get to a 140 (I did) but it isn't worth it.

[bow2no1]

It's best to start with a 140 and go from there. You can start with an 85 and do all the work required to get to a 140 (I did) but it isn't worth it.

look at it this way, your engine is probably completely and totally gone through and judging from how active you are, you probably done the work your self. now your loaded with a wealth of knowledge that others are not.

maybe thats a poor justification?
outboards seem cheaper and more readily available to play with then some of my other hobbies. i'm selling my bike becuse it's a never ending project.
when i'm more ready for my build i'll send you a PM maybe we can work up a parts list?

[flabum1017]

I've got a complete motor for sale cheaper than what you'd have into your's after all the mods and parts...... Some of the stuff such as the exhast filler blocks will be near impossible to find unless someone has a used set laying around.


I have the 135 bubbleback housings (but no stuffer blocks) sitting on a shelf here too.....

[bow2no1]

whats and exhaust filler block?
maybe i should just ask what i need to do to convert a 90 hp to a larger hp like a 135 or 140?

what would you want for a 140 power head?
i don't think i need an ignition, i have some parts from 90's
whats the compression on them?

[Riverman]

Best Xflow build:

73 135 heads
115-140 block (85 had lower exhaust heights and small round transfers)
77 tuner and adapter
75 1 3/8" carbs reworked to primer style (I may be a bit off on the year here)
Plastic reeds with stops removed
Intake filler blocks
Bubble back (140) exhaust & exhaust fillers (requires block machining, simple process)

[bow2no1]

Thanks for the parts list riverman! it'll definitely come in handy

ok, little off topic but i'm changing my water pump. i have all 6 bolts out unit is separated off mid section about 2 inches.
but it's not coming off. whats holding it on?

[jjmalkow]

The shifter rod. Its under the carbs. Depending on year, snap pin or screw holding it to your shift linkage. Right guys????

[bow2no1]

The shifter rod. Its under the carbs. Depending on year, snap pin or screw holding it to your shift linkage. Right guys????

it's a 1985, Thank you. i'll check it out in the morning.
i was reading the manual i didn't see anything about a shifter rod.
it does seem logical, i remember checking them on old 25's but there was a plate in the side of the mid section that removed with 2 screws to reveal the linkage connector.

[Riverman]

Yep, shift rod. It's under the lower carb on the starboard side.

[bow2no1]

got some of those hard to find filler blocks coming!
http://cgi.ebay.com/ebaymotors/Intake-Filler-Blocks-Evinrude-Johnson-85-140-hp-V4s_W0QQitemZ170354881899QQcmdZViewItemQQptZBoat_Parts_Accessories_Gear?hash=item27a9f1356b&_trksid=p3911.c0.m14&_trkparms=65%3A12%7C66%3A2%7C39%3A1%7C72%3A1171

[Riverman]

It's the exhaust ones that are harder to find. You may be able to find some on here for sale.

[flabum1017]

It's the exhaust ones that are harder to find. You may be able to find some on here for sale.


:iagree:

the ones you have comming are for the intake..... good buy..........

[flabum1017]

while building this engine, remember, if you build it to the late-'70's specs, and think you have 140 HP, you don't. Back then they rated the HP at the crankshaft, now they rate it at the propshaft which is somewhat lower due to gear ratio. So, that "140" is actually closer to 115. That is unless you go further in the mods with the ports and such...............

[bow2no1]

while building this engine, remember, if you build it to the late-'70's specs, and think you have 140 HP, you don't. Back then they rated the HP at the crankshaft, now they rate it at the propshaft which is somewhat lower due to gear ratio. So, that "140" is actually closer to 115. That is unless you go further in the mods with the ports and such...............

i did see that some where. what separates the 70's 140's from the newer ones?
is it in my best intrest to use crossflow heads? can't i just have my heads shaved?
also whats the bore difference a 90 to a 140? can i just buy a rebuild kit for a 140?
i wish i had a 140 to play with so i knew a little more about them. i think i'm a little out of my league.


got the water pump finished too, Thanks for the help

[flabum1017]

the bore is the same, cutting the heads will help some, but the real difference is in the shape of the crown on the 135 heads Riverman suggested.

[bow2no1]

they where only that way on 73's?

i thought i was looking at a complete rebuild.

[flabum1017]

those heads were designed tight..... if you want the same compression numbers from a newer head, you will have to find someone to not only cut the heads, but to shap the crown to keep the propper clearance from the top of the piston.....

[flabum1017]

i thought i was looking at a complete rebuild.



if you want to add a bubbleback exhaust..... you will need a rebuild.

[bow2no1]

i thought for the bubble back just some port work was necessary?

i was reading one of your older posts from 07, you said the exhaust fillers are available from flagship marine. wounder if they still have some?

[flabum1017]

for the bubbleback (from a flat back) conversion, some machining is necessary and the port work is necessary to get it to wake up.


Flagship did have them 2 years ago, but they will not sell to joe customer.....you have to be a dealer or shop for them to sell you stuff. The stuffers that they had were brand-new in the box and if they are low on supply, I'll bet they will not want to sell them because they will need them for rebuilds.


the stuffers can be seen in this photo:

[bow2no1]

hmm, i might be lucky then...
the guy who has been renting on of my fathers rentals is a boat dealer/repair shop.

i forgot about him, i should hit him up to see if he has any v4 parts. he use to keep a bunch of used outboards around for parts.