Briggs Intek, replaced everything, still surging.. Ideas?

[JimP2014]

Hello I believe I own the same engine so I have an LT 2000 Craftsman it has a 19.5 horsepower OHV engine last summer I was troubleshooting All kinds of various problems with the engine it seemed each day there is a new problem to make a long story short after 6 weeks I took off what was a brand new carburetor and put on another brand new carburetor I made zero adjustments on the second brand new carburetor and everything ran well to this day it still runs perfectly I suggest getting another carburetor. I also can tell you the carburetor that runs perfectly in my machine if interested.

Jim

 

[Tiger Small Engine]

Until I personally see one small engine with a Chinese carb run correctly with my own eyes, and I have been doing this for 40 years and haven't seen one yet, I say it is a complete waste of money. An OEM carburetor works perfectly every time.

I put cheap Chinese carburetors on all the time. They are usually plug and play. I also don’t get comebacks as a result.

 

[JimP2014]

I put cheap Chinese carburetors on all the time. They are usually plug and play. I also don’t get comebacks as a result.

My carburetor cost $22 it's a cheaply made Chinese carburetor I assume my objective is to get the lawn mower to work well enough to cut the lawn that's exactly what it does is there more involved here that I don't know?

 

[JimP2014]

My carburetor cost $22 it's a cheaply made Chinese carburetor I assume my objective is to get the lawn mower to work well enough to cut the lawn that's exactly what it does is there more involved here that I don't know?

But I can also tell the story to defend what K boley believes to be true.

In an unrelated manner and this has to do with a Honda Accord if you simply go to a shop and replace the starter even with a well made part from Mopar or wherever they come from it will not run correctly what will happen is you'll end up with another error code and that has to do with the crankshaft position sensor switch so you think that's the problem it has nothing to do with it it goes back to the starter as it turns out the Honda starter for this model turns at a very high RPM and if the downstream part which is the crankshaft position sensor switch does not see high RPMs it throws an error code that there's something wrong with the crankshaft position sensor switch this part meaning the starter needs to be replaced by a Honda starter otherwise you're going to run some problems.

So how does one determine for any machine when do you need the exact replacement part or when can you use some sort of knockoff and I don't know the answer of that but I know the carburetor that I bought for $22 and for my Briggs& Stratton engine works fine

Jim

 

[Oddjob]

I put cheap Chinese carburetors on all the time. They are usually plug and play. I also don’t get comebacks as a result.

Please pardon the long story, I promise to connect back to the topic.

I have the 20HP single cylinder Intek. The mower sat for at least 5 years, had no fuel shutoff switch, and there was still a quart of stale gas in the tank, so imagine how much gas had evaporated in the carb bowl over that time. I took a picture of the bowl because I had never seen one that had enough crud in it that you could scoop it out with a spoon. I am not a pro but I have been sorting carburetors for more than 50 years so I took this one on. The needle valve has a rubber tip and it looked questionable but it held pressure when I blew into the fuel line connector. I cleaned the carb as I had hundreds of times, but the motor surged terribly. Tried again, it was better but not good. When I shut it down fuel leaked out of the bowl. The needle valve was toast. That little piece of plastic sells for $16. I chose to buy the cheap Chinese knockoff for $16 figuring that if it didn’t work that I could use the needle valve to fix the OEM carb. The Chinese carb worked perfectly right out of the box.

 

[JimP2014]

And just so you know the entire story with a Honda Accord so the error code is p0339 I know this by heart that means there's something wrong with the crankshaft position sensor switch so I spent $400 to have the crankshaft position sensor switch replaced there was nothing wrong with it a week later the same error code was triggered I finally went to a Honda dealer they said yeah it triggers that code but the problem is the starter and then they replace the starter so like I said sometimes you need the original part sometimes you don't in the case of a carburetor so you might throw away 20 or 30 bucks because you made the wrong call but I still think it's worth it.

 

[JimP2014]

Hey odd job I saw your long story it's only like 50 words do you have a longer version of your long story just curious?

 

[Etbrown44]

Been doing small engine repair 65 years. Have installed 100s of Chinese carbs and only encountered 2 or 3 bad ones. Those odds work for me.

 

[JimP2014]

Own a JD La115 with an Briggs Intek 19.5 engine. Have an issue with surging and backfiring when not under load. Have replaced fuel filter, gaskets, carburetor, spark plug, fuel pump, ignition coil/spark plug wire, air filter, adjusted valves, pumped out and refilled gas tank. Still have a surge/race condition and random backfire happening at any throttle position while at rest and during movement, it does smooth out when I engage the mower blades. I noted another post about surginng which indicated that the safety switch could somehow be involved, not sure I understand hwo that could be. Completely out of ideas and open to suggestions.

Carbhub 594605 Carburetor for 594605 792768 591734 594603 Single Cylinder Engine Replacement Carburetor - 594605 Carburetor. Hey read my other post s if you care to but after 3 months this is the one that works I use the same schematics you use for your engine try this carburetor if it doesn't run let me know

 

[kbowley]

When an OEM carburetor is sometimes 5 to 10 times the cost of an aftermarket carburetor, it may just be worth the gamble…

Until I personally see one small engine with a Chinese carb run correctly with my own eyes, and I have been doing this for 40 years and haven't seen one yet, I say it is a complete waste of money. An OEM carburetor works perfectly every time.