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B&S 3.0 HP-80202-1830-01 Carburetor Problem

I have a B&S 3.0 HP-80202-1830-01 on an older sidewalk edger that starts and runs fine when cold. As the motor heats it will not run without choke. I have disassembled and cleaned the carb. All passages were clean and will pass carb cleaner and air. I have checked for air leaks by spraying wd40 and starting fluid around the carb during running - no air leaks. The carb is unusual, with no float and no bowl. Rather, it has a diaphram with spring and two "flaps" that seems to pump fuel. Once it heats up (after about 2 minutes) it will run only at part choke. Adjusting the mixture screw seems to have very little affect. Advice?

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Motor will not start

For some reason the engine is flooded. To make it start do the following: turn the choke off, hold the throttle wide open and crank it until it starts.Do not push the primer bulb first. It already has more fuel than it can burn. It will smoke more than usual until it burns out the excess fuel. You may also have a carb problem but this should allow the engine to start so it can be diagnosed.

Please rate this solution if it helps-

Posted on Mar 19, 2009

  • 109 Answers

SOURCE: Snapper SS312 weed eater. Cranks when primed but won't run

I am sorry to say this, but the compression for that type of engine should be atleast 120 psi. Remove the muffler and look at the cylinder, it is scarred beyond repair.

Posted on Apr 22, 2009

  • 54 Answers

SOURCE: Need to know how to rebuild the carb on a 3.0 hp

The carb sounds like a vacu-jet, very easy to rebuild. Remove it from the tank but be careful not to damage the siphon tube. Then make sure to check for foreign matter in the tank (big problem with this system), clean and flush it. The idle screw is easy, the other is set by going from idle to full throttle quickly and adjusting it just so it doesn't stumble

Posted on Apr 26, 2010

  • 150 Answers

SOURCE: runs on starting fluid, not

Try spraying a little gas where you spray starter fluid. If it runs you may have to install diaphram kit. If it has a choke can get around primer not working.

Posted on Oct 01, 2010

  • 143 Answers

SOURCE: Briggs & Stratton motor- Model 422447 Type

most carbs have tiny little holes in them for gas to flow through and as gas runs through it leaves behind a deposit like scale or plaque on your teeth . It only takes a little scale in one of those holes to prevent the proper gas flow usually the bowl on the bottom of of the carb has two holes in the screw that holds the bowl on it is usually a 7/16 1/2 0r 9/16 screw new models are plastic and have a spring clip on them. remove the screw and see if the whole are blocked if they are get some carb cleaner and go to home depot and go to the welding section and look for a torch tip cleaner it looks like a round wire with ridges on it it is in a little aluminum case 1 inch wide 3 inches wide use that to clean out any holes . the build up in the carb will look yellow and come off with carb cleaner use a paper towel to rubb any thick stuff remember we are talking about a pin sized hole wont take much to clogg even i one particle of scale will close the hole . hope this helps write back for more questions

Posted on Mar 07, 2011

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Edger Model 143711022 is hard to start. When primed when gas is poured in the spark plug opening, will finally start and then surges\r\nand when placed out of choke position will run for a while and cut...

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Hi, I have a craftsman 25cc weed wreck. always starts in first time(cold) then couldn't start second time; If starts in first time, after 2-3 minutes (engine warms up) engine automatic stops.

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My car doesnt want to start up right away in the morning. Almost like its really cold out and it takes it a min. The rest of the day its fine runs great. Any ideas?

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I can keep the 3.5 motor running for a couple mins by continuiously pushing the cold start primer, but wont run by itself. the edger only has been used a few hours over a couple years. do i need to buy a...

You shouldn't need a new carburetor. You just need to clean it. First, drain the gas out of the machine. You can do this by removing the fuel line where it attatches to the carburetor. Then, remove the bolt that holds the float bowl on the bottom of the carburetor. There will be an external washer on it. so be careful. The brass bolt that holds the bowl on the carburetor is also the main jet of the carburetor. There are very small holes in the bottom of the bolt and in the sides of it where the smooth section is. Clean it very well as these holes are very small. Reinstall the bolt after wiping clean the float bowl and reassemble. Careful with the carburetor body gasket that goes in between the bowl and the upper part of the carburetor body. make sure it is in place correctly all the way around. Add some fuel cleaner to your gas and run the machine..The built up gum and varnish in dried up gasoline is usually the cause of this problem. If an inline fuel filter isn't used, these same symptoms can develop also as water and trash enter the carburetor.

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1 Answer

Edger won't run. replaced fuel, air filter and spark plug. I thing fuel line is clogged. It starts fine but won't stay running.

Check your fuel filter in the fuel tank to make sure it is clean if it is then"
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float for the carburetor must be level when you go to reassemble the carburetor or follow the instrucitons you get with the carburetor kit.
If the mower/weedeater is over a year old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
This is a FREE answer,Please rate me

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1 Answer

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