Hey Rocky, I would start with the round hole... This is a manual choke engine/carb..(butterfly in the mouth of the carb)... make sure it opens fully and closes fully when you turn the choke knob ....it needs to operate smoothly and correctly..if it doesn't swap holes..
https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1991&hp=3&model=J3REIA&manufacturer=Johnson§ion=Carburetor
SOURCE: what is the trick to removing the leg from a 25 hp
Its either up under the cowl near the bottom of the powerhead, or you might have to put the outboard in gear using the lever to drop the leg an extra inch, which would then expose a shift linkage holding nut in the gap above the leg connecting point.
SOURCE: 1991 yz 80 won't run with choke off.
Go to http://www.carlsalter.com/motorcycle-manuals.asp , and down load a (free) manual, then go through the trouble shooting section.
SOURCE: Johnson 2 cyl 50 hp gearbox removal help!
Look on the side, of the lower end, (dirveshaft housing) for a small cover, with usually two screws holding it on. Then underneath the cover there is a fitting that connects the linkage. Put a mark with a magic marker on the linkage rod to remember where they line up. Put the motor in neuteral, (not running) and loosen the fitting, it should all seperate after that.
SOURCE: linkage to choke and excelerator dont operate,
It will have CV carbs, called constant velocity.
The cable and linkages open the butterflies on the intake side, the slides wont move until the air flow through the oval looking hole at the top causes the diaphrams to lift the slides.
you should be able to lift the slides individually with your finger , and they will drop down again.
I think the chokes lift a plunger in each carb, and is called an enrichening device, as it opens another jet to richen it for cold starts,the choke does not work the same way as a car ar a standard slide carb.
Testimonial: "hi thanks for the info its took a load off my mind. Ive never heard it run i bout it as a trike project with a xj 650 front end the wiring is mess as "
SOURCE: 1989 johnson 25 hp outboard water pump replacement ? shift linkage issues.
Line up the water pump housing with the drive splines and look straight down on it all -there will be a clearance cast in the pump housing some where. It's a matter of perspective. Or you have the wrong pump.
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