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Hello Forum. I have a Scotts riding mower / M# 311777 I had hydrolocking, so i cleaned the carb thru and thru, but gas is still running right thru. what do i need to replace on this rather than buy a new carb. Float was working fine, solenoid was working as well. Not many parts to this. I can buy a new carb for 23 bux. Any thoughts?

Post engine make & all numbers from engine. An original B&S carburetor at an excellent price. Some are over $200.

see illustrated parts list pages 14-17.https://www.amazon.com/Briggs-Stratton-799727-Carburetor-Replaces/dp/B0088E8N2W

float is not working fine if t is flooding enough to be hydro locking,
HAve you remove to old contaminated oil ?

bertsmobile1 said:

float is not working fine if t is flooding enough to be hydro locking,
HAve you remove to old contaminated oil ?

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yes i did. new filter, oil as well. Funny, the float was moving freely withe needle nice and clean to start. i did not check the float for cracks, i forgot!

with the carb upside down the float weight should be enough to prevent you blowing into the float chamber.
One of the techs here did put a number on this which was 3 to 7 psi if you have a pressure pump,
This sounds right because impulse pumps put out 5 to 15 psi

bertsmobile1 said:

with the carb upside down the float weight should be enough to prevent you blowing into the float chamber.
One of the techs here did put a number on this which was 3 to 7 psi if you have a pressure pump,
This sounds right because impulse pumps put out 5 to 15 psi

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t-u, i'll see what i come up with

mechanic mark said:

Post engine make & all numbers from engine. An original B&S carburetor will be expensive, I would purchase a rebuild kit, original B&S parts.

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M # 311777; Type 0143-E1; Code 000315ZE

Probably still got the original Nikki carburetor on it. If so the float bowl gasket should be replaced. They tend to go bad and cause leakage. It only takes nick in these gaskets to cause problems. Briggs supersede the Nikki to a Walbro LMT but have since superseded back to the Nikki.

But if you want to buy that $23 carburetor. Go ahead and get one, it may work and may not work properly; but go ahead and support the Chinese cloners. This why the Chinese is taking over the industry with their junk. Personally would rather repair a known good carburetor. Both the Walbro and Nikki rebuild kits are only around $47 retail and besides if it is the Nikki the $7 bowl gasket usually fixes most leakage problems. Of course a good ultrasonic cleaning doesn't hurt to done too.

Orangegud said:

Hello Forum. I have a Scotts riding mower / M# 311777 I had hydrolocking, so i cleaned the carb thru and thru, but gas is still running right thru. what do i need to replace on this rather than buy a new carb. Float was working fine, solenoid was working as well. Not many parts to this. I can buy a new carb for 23 bux. Any thoughts?

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buy the new carb and be done with it, ebay has lots of them for $16 and free shipping

ignore startech talking about chinese carbs, you arent going to ruin the economy if you buy one and they are good carbs

Can't prove it to me when results for me have been 9 out 10 fail to operate properly. Plus I don't have the time to order, ship back, re-order again then after two weeks of fighting the vendor having send the second one back with finally order the OEM carbs. But of course I operate a business of repairing equipment and can not have these kinda of problems.

The Chinese are sorta like fire ants. Oh one hill is no problem and then before you know it have 10+ hills. And stepping on one those hills in the middle of the night is as fun as H*** especially when you have allergic reation to them.
.

I have a walbro carb from a john deer/scotts S1742 17 h.p. intek motor. trying to find a float for the carb, cannot find floats only, way too many no.'s to input. went to jack's small eng., amazon, ebay. carb says 5-4993

That is just a casting number for the generic base LMT carburetor. Need the model, type, and date code from the engine to look-up the correct parts as there are many version of this base carburetor. But it does appears to be Briggs PN 494381.

I've had ok luck with Chinese carbs. I've purchased like 2 or 3. Those are huge numbers to go by LOL. Got to set the standard right?

slomo

slomo said:

I've had ok luck with Chinese carbs. I've purchased like 2 or 3. Those are huge numbers to go by LOL. Got to set the standard right?

slomo

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man o' chevis! aftwer a whole afternoon i did find what i was lookin for. thanx forum, u guys are great

StarTech said:

Can't prove it to me when results for me have been 9 out 10 fail to operate properly. Plus I don't have the time to order, ship back, re-order again then after two weeks of fighting the vendor having send the second one back with finally order the OEM carbs. But of course I operate a business of repairing equipment and can not have these kinda of problems.

The Chinese are sorta like fire ants. Oh one hill is no problem and then before you know it have 10+ hills. And stepping on one those hills in the middle of the night is as fun as H*** especially when you have allergic reation to them.
.

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i have had a few problems where 2 or 3 out of 12 i bought had to be sent back but its not a big deal and i keep 5 or 6 on hand at all times, i just make sure to test them all when they arrive to be sure they work before i stock them on the shelf. on average i rarely have bad ones but sometimes its been like 1 in 10 i find defective so i guess they have bad production batches making them so cheap

in most cases i buy the rebuild kits and just use the float needles and replace them in every mower i work on if it was running fine, if not then i give it a full clean and going through

i do understand and agree, nothing is better then having a genuine original part but the engine mfg are now using the same cheap chinese carbs themselves so unless you buy commercial equipt you arent going to have a "better" carb on it then the ebay one you buy

Well Forum, it's a done deal! I replaced the brass seat, the needle valve and the float. We achieved NIRVANA! To ALL on this Forum, Thank You.