Carb help please??@!!

[dirtyduck]

I got a used gocart and im on a budget so I've pieced together the carb and airfilter. The carbs been cleaned but still dies when given gas. Could the airfilter set up be causing this or maybe a gasket or lack of one? Anyone with info is greatly appreciated!

 

[Denny]

You need all gaskets! Sounds like the carb is still plugged up. Clean it again and make sure the jets are clear and open. Make sure you have good spark also.

 

[dirtyduck]

You need all gaskets! Sounds like the carb is still plugged up. Clean it again and make sure the jets are clear and open. Make sure you have good spark also.

Sparks good I believe it fires up almost every stroke just bogs out when given gas not sure if this makes a difference but I made a straight pipe exhaust

 

[landuse]

Sparks good I believe it fires up almost every stroke just bogs out when given gas not sure if this makes a difference but I made a straight pipe exhaust

Like Denny says, it sounds like not all the air passages are clear in your carb. Try cleaning again and make sure all passages are open

 

[12348910]

Are the jets in the carb in the wrong spot? Maybe you switched them on accident. I know this is off topic but one time on my atv I was cleaning the carb and I accidentally switched the jets and it idled perfect but bogged down when I hit the throtle. I have cleaned out that carb at least 155 times and I don’t know how I mixed that up

 

[Rat]

Are the jets in the carb in the wrong spot? Maybe you switched them on accident. I know this is off topic but one time on my atv I was cleaning the carb and I accidentally switched the jets and it idled perfect but bogged down when I hit the throtle. I have cleaned out that carb at least 155 times and I don’t know how I mixed that up

Not sure how you managed that, most carbs (as in 99% of every multi-circuit carb ever made) have a smaller diameter jet for the pilot circuit and they physically cannot be switched.

They 100% absolutely cannot be switched on a typical equipment engine used for a gokart because the pilot is a plastic plug pushed into the carb body under the idle screw, and the main is a brass threaded one in the bowl like any other carb.

I got a used gocart and im on a budget so I've pieced together the carb and airfilter. The carbs been cleaned but still dies when given gas. Could the airfilter set up be causing this or maybe a gasket or lack of one? Anyone with info is greatly appreciated!

Yes the air filter could cause that, but only if the carb was already getting a little too much fuel.

An airfilter being something of a necessary evil is an air restriction, which means the internal pressure (negative, aka vaccum) in the carb increases (like putting your hand over a shopvac hose but not blocking it completely) and since that pressure seeks the path of least resistance to equalize itself, it pulls more fuel through the jets. This is why the least restrictive "racing filters" near always require some rejet tuning.

Missing or bad gasket will cause it to not idle, it will however rev uncontrollably against the governor, or rev until the valves float if the governor has been removed, or rev till the governor parts turn claymore because some nitwit thought "disabling" the governor was a safe solution.

If it stalls immediately like someone flipped the kill switch, it's probably not getting fuel through the main, because a near flood will bog and loose power before fully stalling.

It sounds like it's probable you have a plugged main jet which feeds straight from the bottom of the bowl unlike the pilot jet on those things... best to remove it.
If you can't see a little speck of light through it holding up to a light, it's completely blocked and you have 3 choices.

1. Clean the jet out: poke it with the thinnest sewing needle you can find, or a stiff thin wire to break up the crud, then hit it carb leaner to blow it out.

2. Replace the jet, they tend to be jetted a bit rich from factory and you know it's clearly been neglected but You do not know if it has ever been tuned or not.

3. Stop playing with used, abused, neglected trash carbs and buy a new one.

I don't want to be mean, but if being realistic is mean then I scare Satan.
The reality is that if a New $15 to $30 carburetor is too big for your budget, you need to get a bigger budget or to stay away from karts. find a cheaper hobby.

 

[12348910]

Not sure how you managed that, most carbs (as in 99% of every multi-circuit carb ever made) have a smaller diameter jet for the pilot circuit and they physically cannot be switched.

They 100% absolutely cannot be switched on a typical equipment engine used for a gokart because the pilot is a plastic plug pushed into the carb body under the idle screw, and the main is a brass threaded one in the bowl like any other carb.

.

I was only 12 years old trying to do this on the side of a trail. I am not too familiar with the go kart carbs yet but I was sharing my experience. And the jets on mine where 100% able to be switched since I did it

 

[12348910]

I got a used gocart and im on a budget so I've pieced together the carb and airfilter. The carbs been cleaned but still dies when given gas. Could the airfilter set up be causing this or maybe a gasket or lack of one? Anyone with info is greatly appreciated!

what motor/carb is it?

 

[Rat]

I was sharing my experience. And the jets on mine where 100% able to be switched since I did it

Sounds like a cheaper than trash knockoff of poor quality Chinese copy to me because that is absolutely not even possible on ANY respect worthy top shelf or even mid level carb (or their Chinese copies funny enough)

Before you get defensive... I'm just being honest. You won't learn anything is everyone just bows down and kisses your a$$ just because you're a kid. I tell it like it really is to anyone, any age, and any offense taken isn't my problem just like what you choose to do with the information isn't

Keihin [2stroke or 4cycle] (or the copy made by Koso)

Delorto [SHA series is the single best 50-80cc 2stroke carb ever designed]
(NO clone or copy is worth it weight in scrap bras and aluminum)

Mikuni (I am more familiar than I care to be, and I don't like them personally. I don't know of any competitive copies or trash clones)

As for 196-224cc Gokart specific carbs

Hauyi (nothing else is worth the effort to tune, nor has the tuning range)

 

[12348910]

You won't learn anything is everyone just bows down and kisses your a$$ just because you're a kid. I tell it like it really is to anyone, any age, and any offense taken isn't my problem just like what you choose to do with the information isn't

I wouldn’t be suprised if my atv has a Knockoff carb. That thing has so many problem but the biggest problem is it’s a can am (I don’t know if you are familiar with atvs but the can am’s always break down and are not very reliable) I appreciate you trying to explain that correctly rather than just ”being nice“ because I’m a kid.

 

[ezcome-ezgo]

Yes we appreciate being nice, even though some of us dislike it and it makes us angry.

 

[Rat]

I wouldn’t be suprised if my atv has a Knockoff carb. That thing has so many problem but the biggest problem is it’s a can am (I don’t know if you are familiar with atvs but the can am’s always break down and are not very reliable) I appreciate you trying to explain that correctly rather than just ”being nice“ because I’m a kid.

I'm familiar with a lot of various machines, and yeah Can Ams are definitely bad.

 

[dirtyduck]

Like Denny says, it sounds like not all the air passages are clear in your carb. Try cleaning again and make sure all passages are open

Is there anything I should use to clean. It with and what would be good to use to clean it with what would fit through the holes

 

[dirtyduck]

Not sure how you managed that, most carbs (as in 99% of every multi-circuit carb ever made) have a smaller diameter jet for the pilot circuit and they physically cannot be switched.

They 100% absolutely cannot be switched on a typical equipment engine used for a gokart because the pilot is a plastic plug pushed into the carb body under the idle screw, and the main is a brass threaded one in the bowl like any other carb.


Yes the air filter could cause that, but only if the carb was already getting a little too much fuel.

An airfilter being something of a necessary evil is an air restriction, which means the internal pressure (negative, aka vaccum) in the carb increases (like putting your hand over a shopvac hose but not blocking it completely) and since that pressure seeks the path of least resistance to equalize itself, it pulls more fuel through the jets. This is why the least restrictive "racing filters" near always require some rejet tuning.

Missing or bad gasket will cause it to not idle, it will however rev uncontrollably against the governor, or rev until the valves float if the governor has been removed, or rev till the governor parts turn claymore because some nitwit thought "disabling" the governor was a safe solution.

If it stalls immediately like someone flipped the kill switch, it's probably not getting fuel through the main, because a near flood will bog and loose power before fully stalling.

It sounds like it's probable you have a plugged main jet which feeds straight from the bottom of the bowl unlike the pilot jet on those things... best to remove it.
If you can't see a little speck of light through it holding up to a light, it's completely blocked and you have 3 choices.

1. Clean the jet out: poke it with the thinnest sewing needle you can find, or a stiff thin wire to break up the crud, then hit it carb leaner to blow it out.

2. Replace the jet, they tend to be jetted a bit rich from factory and you know it's clearly been neglected but You do not know if it has ever been tuned or not.

3. Stop playing with used, abused, neglected trash carbs and buy a new one.

I don't want to be mean, but if being realistic is mean then I scare Satan.
The reality is that if a New $15 to $30 carburetor is too big for your budget, you need to get a bigger budget or to stay away from karts. find a cheaper hobby.

Can you recommend a cheap decent performance carb

 

[BrownStainRacing]

Can you recommend a cheap decent performance carb

Cheap, decent, performance.......there's no such carb.

There's cheap carbs.
Decent carbs.
And performance carbs.

What engine are you working with????

 

[Rat]

Is there anything I should use to clean. It with and what would be good to use to clean it with what would fit through the holes

I've used a strand cut from unspun bicycle brake cables on more than a few occasions. An E or B guitar string would probably do it.

They do make carburetor cleaner multi tools that have a combination of wires and tiny brushes... I've never fussed with one though.

Can you recommend a cheap decent performance carb

Assuming we are talking about a 196-224cc common engine, just get a Hauyi. They aren't expensive and with the A/F bleed adjustment you're not getting a better kart carb without doing some fabrication and mods.

Like @BrownStainRacing said there's cheap, theres decent, and there's performance, you don't get all 3. IMHO, that Hauyi comes the closest of any especially if you take tue time to jet it properly
Ebay Hauyi
Amazon Hauyi