1987 Evinrude 200hp outboard resto/rebuild

[j_k_bisson]

Update 03-17-2011

Update 03-17-2011

Been going over things that last couple of days, double checking things. While doing this I recalled a question someone raised about jetting.

Do I need to start thinking about the jet sizes seeing that I have this rebored to .030" larger than stock, but have stock sized jets?

Also if I do what is the thinking behind this and what is the recommendations?

 

[dehydrated]

Re: Update 03-17-2011

Re: Update 03-17-2011

jeff,no you dont have to jet it up for 30s my question is what jets do you plan on running the 74ds were stock with stock airbox which had no baffles in it i would reccomend running up to 76ds on 5 and 6

 

[j_k_bisson]

Re: Update 03-17-2011

Re: Update 03-17-2011

I do have the baffels in the stock air box. What is the recommended jets for this configuration. Seeing I do not know anything about this stuff. I'm hoping you guys and point me in the right direction.

 

[dehydrated]

Re: Update 03-17-2011

Re: Update 03-17-2011

went back through your first post to see what you had first off the mids are 47 idle 14(mid are top hole) and 74 d that would be for a air box without baffles .beings how you have air box with baffles makes things interesting heres my .02 worth.Start with what you have better to be too rich then lean if shes a pig out of the holeshot then we might need to change to 62 d for the mains but i would go slow on the jetting changes she needs to eat better safe than sorry

 

[daselbee]

Re: Update 03-17-2011

Re: Update 03-17-2011

went back through your first post to see what you had first off the mids are 47 idle 14(mid are top hole) and 74 d that would be for a air box without baffles .beings how you have air box with baffles makes things interesting heres my .02 worth.Start with what you have better to be too rich then lean if shes a pig out of the holeshot then we might need to change to 62 d for the mains but i would go slow on the jetting changes she needs to eat better safe than sorry

dehyd...you would go from 74s down to 62s in one jump? seems awful lean...is that a typo?

 

[daselbee]

Re: Update 03-15-2011

Re: Update 03-15-2011

Do the link and sync with the engine on the stand. 90% can be completed there. Idle timing and WOT timing after it is running.
Mucho easier to look down the carbs when on the stand.
I always sync the carb throttle plates with the black carb bodies OFF. Very easy to see and sync.
In fact, if a motor comes in to link and sync, I take the carb bodies off. So much easier, and you can get it perfect.
Just a suggestion.

 

[dehydrated]

Re: Update 03-17-2011

Re: Update 03-17-2011

dehyd...you would go from 74s down to 62s in one jump? seems awful lean...is that a typo?

simply stating the stock configuration for a 87 with stock air box( without baffles )would be 74d if baffles are in air box another story if you followed the thread from the start we have kind of mixed signals of what this motor actually is carbs included.airbox with baffles 62d for sure!thanks for calling me out on this but if you actually read my post i told him to start there if it bogs out of the hole then we need to adjust. have a nice day!

 

[j_k_bisson]

Re: Update 03-17-2011

Re: Update 03-17-2011

Ok so I'm good to go for right now? I'm a bit confussed. Sorry guys......

Here the hood with half the decals. Didn't get them quite in the right place. But it will work. Still waiting on my one buddy to get the strips and lettering for in the stripes. He said he could get it done from some scrap graphics he had at work for the m-10 challangers. The color was close to what I wanted. Hey free is free so I won't complain.





Yes the HP is a misprint, but it will match the boat rating....... I love the sleeper factor to!

 

[j_k_bisson]

Re: Update 03-17-2011

Re: Update 03-17-2011

Just rechecked the carbs the throtle body (upper) part number is 398743 and the jets are 14,50,62d. I do have the baffles in my air box. I hope this helps the disscussion.

 

[83ebbtide]

Re: Update 03-17-2011

Re: Update 03-17-2011

Looking good! The 175 on the cowl made me laugh a bit.

 

[dehydrated]

Re: Update 03-17-2011

Re: Update 03-17-2011

Jeff, in your first post you stated idle 48 mids14 mains 74d now you say you have mids 48 idles 14 mains 62d did you not actually check before i guess im a little confused now! were these jets in before or after the rebuild? would of cleared up alot of guess work but my point is still the same and you will ok running that configuration, i would concider running 64d on 5 and 6 at least through break in procedure keep a eye on how your plugs are burning

 

[j_k_bisson]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Nope did not change anything. The numbers are what is in there right now. SO I should change the #5 and 6. I'll stop by the dealer and pick them up. I hope they have them instock..... But I have time.

The mids are 50's not 48's though. Does this affect anything? Should I still make the change?

Also why only #5 and 6? Not all the other cylinders?

 

[daselbee]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Better watch out on the jetting. Lean kills.

 

[j_k_bisson]

Re: 1987 Evinrude 200hp outboard resto/rebuild

I just looked it up. A 1987 225 jets are 14 idel, 48 mids, and 62d highs. That is with a standard bore. Seeing mine is bored over 0.030". should I change the jets?

 

[daselbee]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Nope. Just because the bore is bigger, will not change the required mix of air and gas. Each cylinder will suck slightly more fuel/air mix by the overbore size, but the mix will be the same after it passes thru the carbs. If you want to richen up the mains just to be on the safe side, feel free to do so. After break in, read the plugs...try leaner jets to get the proper mixture for your engine.
Fine tune it. I also realize that those jets are expensive...makes it hard for the backyard guy to experiment.

Now...regarding the dehyd post....if your air silencer is modified, and will flow more air, then you must richen the mains. He posted 74s, and I still don't know if he meant 72s or 62s in that other part of his post. Modified air silencer changes the game.

PM sent.

 

[j_k_bisson]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Ok I have gone thru the carbs to help clairify things when I got home today after work and I'm more confused then ever. Here is number that are molded into the carb bodies;

Upper carb body 398743 all six carbs have the same numbers
Lower carb body 326832 all six carbs have the same numbers
Side aluminum plate has two numbers 398395 on two of them, 398393 on two of them and nothing on two of them.


The 1987 225tx carb assemblies has "carb asm, upper is 398393" and also listed is "carb asm, lwr 398395" listed as part numbers. But the Upper and lower numbers molded into the parts are not coming up on the evinrude parts site. So I suspect that the side plates possibly are not original to the carbs. The upper bore size is 1.985" diameter if that helps.

As to jetting the Evinrude site says these are the jet numbers.....

200tx(STD) lists 43,28,57d
200stl(XP) lists 14,48,74d
225tx(STD) lists 14,48, 62d

I have 14,50,62d in my carbs

So I do not burn up my motor breaking it in I would like to confirm the carb bodies are the right bore size needed for a 225 and that the jets are right. To summerize the motor again, it is a 1990 big bore 225 block bored 0.030" over sized. It has 1987 complete ignition system. Everything else is stock.

 

[dehydrated]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Jeff your looking at casting #s your carb #s come off the side plate 398395 398393 not sure what year they are but i can tell you your jets will be fine put 64d part #328545 in 5 and 6 if you cant find them locally let me know i have some

 

[j_k_bisson]

Re: 1987 Evinrude 200hp outboard resto/rebuild

ok by me. we'll try it. I plan on running the oil a bit rich anyways for the first 3 gallon tank. After that it will be double the oil for the next 4-5 hrs. So I hope that will over come any jetting issues. I also plan on babying it for the first bit.

 

[nymack66]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Jeff,,
I call this stuff Outboard forensics hopefully these links help ... Both mentioned your numbers ..398743
http://forums.iboats.com/showthread.php?t=74511
http://cgi.ebay.com/ebaymotors/9-Ca...7127006QQsspagenameZRSSQ3aBQ3aSRCHQ3aUSQ3a101

 

[OldPcGuy]

Re: 1987 Evinrude 200hp outboard resto/rebuild

Wow...!!! Great Job on the re-build..!! and nice work to all who chimed in with helpful hints..!!

I've got an '87 Evinrude 200XP (STL) that I'm trying to get running right. This thread has helped me get more motivated to dive in, and finish. I started last month, then took some time for important matters... now it's time to finish. It's also prompted me to ask a few questions regarding parts of this project as it relates to my own.

First question... are 'new' carb kits 'better' than older ones..??? I just bought some kits off Ebay that I *think* are 'older' (not sure how old) kits.... are the gaskets in 'old' kits more succeptable to damage from ethanol than 'newer' kits...???

Second, is the black tool that appears 'hinged' for removing the 'caps' off the trim pins..??? If so, where can I get one and how much do they cost..?? I built a four pin 'tool' from a piece of galv steel pipe, and with a big pipe wrench could not turn the pin 'caps'... instead it bent the 'nubs' on the 'pipe/tool' I had made... (!?!?!?!!!) My pins are corroded, and chewed the seal causing an oil 'leak'... I've replaced these pins/gaskets before. Used a buddy's pin 'spanner' tool... but don't remember having a hard time removing the caps.

Third, while I would, by my nature, replace each carb to it's original location after installing the kits, it appears that some of the carbs MAY have different jets installed..?? Need I worry what jets are in the carbs..??

And... what size/type/brand of hose should be used for all the air lines..??

Lastly... I stopped using the VRO 15 yrs ago, but have never rebuilt the 'fuel pump'... any 'test' that might determine if the pump isn't performing..??

Thanks for any help...!!! Jeff, GREAT JOB..!!! Can't wait to 'hear' (about) that puppy firing up..!!!!