carb rebuild question

ttsingram

Cadet
Joined
May 25, 2002
Messages
6
I have a 1957-58 15 hp evinrude outboard. My wife picked up a carb rebuild kit for it. I do not have a manual (nor do I want to spend $35 at this time to purchase one).<br /><br />There are some parts that I do not know where they go. Is it possible that the kit is somewhat universal? <br /><br />Is there another web site that might have a diagram I could go from?<br /><br />I have worked on carbs before but never one for a boat. Any info would ba great. Thankx
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: carb rebuild question

TT..... The majority of the carb kits have an assortment of parts included with them, more than you'll need. This is because the carb kit fits a few other models. Simply match up the parts that you need and discard the rest. I'm including the carburetor adjustment sequence here just in case you need it. You might want to print it out for future reference.<br /><br />(Carburetor Adjustments - Two Adjustable N/Vs) <br /><br />Initial settings are: Bottom high speed = seat gently, then open 1 turn out. Top slow speed = seat gently, then open 1-1/2 turns. <br /><br />Setting the high and low needle valves properly: <br /><br />(High Speed)<br />Start engine (it will run pretty rough), shift into forward gear, take up to full throttle. In segments of 1/8 turn, waiting for the engine to respond between turns, start turning in the bottom high speed needle valve. You'll reach a point whereas the engine will either start to die out or spit back (sounds like a mild backfire). At that point, back out the needle valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest setting. <br /><br />(Low Speed)<br />Slow the engine down to where it just stays running. Shift into neutral. Again in segments of 1/8 turns, start to turn the top needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running. Eventually you'll hit the point where the engine wants to die out or it will spit back. Again, at that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting. <br /><br />When you have finished the above adjustments, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.
 

Barefoot

Recruit
Joined
Jun 14, 2002
Messages
3
Re: carb rebuild question

Sounds like Joe has his stuff togeather.......Hey Joe...ever patch an ex manifold with JB weld? Or is there something better? Thanks....Barefoot
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: carb rebuild question

Barefoot.... I have some JB Weld on the shelf but have never got around to using it yet. I've been using (when absolutely needed) "Gray" Marine Tex. I say "Gray" as they also make "White" but I've found the "Gray" to be stronger (in my opinion). I've never had Marine Tex let me down. However, I have never used it to repair anything that would have a tendency to run excessively hot.
 
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