1986 Mercruiser 4.3L 2 Barrel Carb

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1986 Mercruiser 4.3L 2 Barrel Carb - Video 1

Рет қаралды 39,302

Sean Hendrick

Күн бұрын

Carb issues

Пікірлер: 22

@TheCommo81 4 жыл бұрын

Looks like you have that choke set to pure rich. Mercarb should be set to lean and adjust from there. The heater to the left in the video with the 1 wire is where you adjust. unscrew the 3 screws a little and turn that all the way to the right and the choke will open more. then tighten and start it and just keep adjust that from there. It's just choking itsself out is what is happening.

@jhonalvarez3486 3 ай бұрын

Having the same issue with my boat, how do you fix or better to find a new part?

@markmason5812 2 ай бұрын

Have you found the answer?

@jhonalvarez3486 2 ай бұрын

@@markmason5812 I did put a clip at the opener lip enough to prevent any choke

@shawnwales8496 7 жыл бұрын

Float is stuck! it should never spray gas out the vent.

@randyr316 3 жыл бұрын

I bought my boat used it sat 3 yrs prior, bought new battery it fired up n purred, took it out on water and after couple hrs it wouldn’t start, got it running with pouring fuel in carb but kept stalling at idle, it still is stalling if try to idle, did full tune up n installed electric fuel pump still stalling, I’m thinking junk in carb, oh my cab is always full open n not closed n flapping like his I noticed??

@seanhendrick6074 3 жыл бұрын

His issue ended up being electrical. I can’t remember the exact timeline now but his boat sunk at his dock prior to this I believe. For your issue, since it sat 3 years, it sounds like a plugged carb. I’m not so sure about boat motors but for other smaller motors (atv, mower, chainsaw, etc) a lot of times the fuel lines will get clogged from the tank to the carb so double check you’re getting adequate flow into the carb. Hope that helps some.

@markmason5812 2 ай бұрын

How did u you fix this.. I’m having the exact same problem

@americanboxingmma 6 жыл бұрын

How did you fix this? Mine has been doing the same thing. Thanks

@seanhendrick6074 6 жыл бұрын

I will check with him tomorrow. It ended up being an electrical issue I think though.

@americanboxingmma 6 жыл бұрын

Sean Hendrick thanks Sean, fixed mine. Ended up being a bad connection from starter coil to distributor. $5 fix🤙

@edgrayson2456 8 жыл бұрын

Well WHAT WAS THE PROBLEM?????????

@seanhendrick6074 7 жыл бұрын

it ended up being something electrical I think. I posted the videos for my boss to show his mechanic so not positive of the outcome. I do know that the boat got submerged prior to this during a local storm.

@stephenbecker-atlanta7639 6 жыл бұрын

check gas water - contaminated. Sipion use harbour freight tools $ 5.00 SKEET or rubbing alycolyl.to clean. possible rebuild carb $ 24 kit ebay. see mike carbs. for help. clean ful filters inside fuel pump. + carb

@fredrikax529 5 жыл бұрын

at 2:58 you'll see an arc spark jumping below the throttle lever.... definitely grounding the engine!!!!

@will7its 4 жыл бұрын

That was a piece of fluff.......

@josepeixoto3384 7 жыл бұрын

Running out of gasoline; fuel pump....OR.... very low fuel in tank! Seen this LOTS of times

@seanhendrick6074 7 жыл бұрын

@sqlb3rn 2 жыл бұрын

Is the choke supposed to flutter and move like that? Mine stays in one position and my engine isn't running good

@seanhendrick6074 2 жыл бұрын

I’m by no means an expert on it but I believe It’s supposed to be able to move to restrict or allow airflow. In the video he may have been playing with it causing it to move but not positive.

@NeverEnoughPyro40 Жыл бұрын

Unless you’re trying to start your boat with temperatures below 40°F you do not need a choke! What most people do not realize is that these carburetors were never meant to run with modern day fuels! I have a 4.3 V6 in my boat with a 2 barrel Rochester with all of the choke components removed, I have never had an issue firing up my engine!

@sqlb3rn Жыл бұрын

@@NeverEnoughPyro40 man I hear that, my boat is running great now, and only has problems starting when it's cold and the choke is closed. I always have to manually open the choke after priming the throttle a few times. Here in AL so it's always hot.