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Mtd yard machine briggs 5 horse will run if gas poured down carb not drawing from tank. good fuel in tank checked diaphram on carb i have compression and fire just not getting fuel from tank

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Posted on Jan 02, 2017

vincob
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SOURCE: I have a mtd 5hp.

Check the screw on the bottom of the bowl, it has little orifices on it and they need to be cleared. What kind of diaphragm did you replace and where was it located????? Pouring fuel it the carb is not a solution to problems like this I do not recommend that you do that! Your problem is just a clog somewhere you have to find it, this very common problem. This is how us repairmen make good $$$ off of people in your position. This stuff is not ROCKET science! Good Luck...

Posted on Apr 18, 2011

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SOURCE: john deere 116 no fuel to carb

Blocke inline filter, or if it has a pump, then this is not working.

Posted on Mar 01, 2012

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1 Answer

New MTD Yard Machine with 158cc briggs worked great but after only using it 2 times now it will start but quits after primer gas is gone (about 1 or 2 seconds). Does this repeatedly.


Running only on the prime is caused by the main jet in the carburetor being blocked. This can happen if you put dirty or old fuel in it or let it sit for a long time with fuel in it. Today's ethanolated gas goes bad quickly and absorbs tons of moisture which causes water to settle to bottom of the fuel tank, which in turn prevents the main jet from lifting fuel, it picks up water instead, thus causing it to die. So, check the tank for water, drain. Check the gas can, and get rid of the old stuff. If debris in either of them, you may have to take carb apart to clean the main jet.

Sep 15, 2011 | Mtd Products Yard Machines 158CC Tiller

1 Answer

I have a mtd 5hp. briggs@strattion engine its not getting any gas,Ihave put a new diaphram in it and it is still not getting gas, I can pour gas in the carb. and it will run untill it runs it out.


Check the screw on the bottom of the bowl, it has little orifices on it and they need to be cleared. What kind of diaphragm did you replace and where was it located????? Pouring fuel it the carb is not a solution to problems like this I do not recommend that you do that! Your problem is just a clog somewhere you have to find it, this very common problem. This is how us repairmen make good $$$ off of people in your position. This stuff is not ROCKET science! Good Luck...

Apr 18, 2011 | Garden

1 Answer

I Have a push lawm mower (mtd product model # 11a-439s729) serial# 1d261k81143 I have to prime before pulling the lanyard to start . I have no problem starting the engine ,the real problem is it will die...


I really need your engine number but I am going to guess that it is a 3.5 to 4 HP Briggs & Stratton with a black primer bulb on the side of the carb.

Try this the next start. Take a screw driver handle just a bit smaller than the primer bulb and FORCE it against the carb body trying to make a seal with the primer rubber against the carb body. You use your thumb if you can manage to depress the entire area of the center of the primer bulb agains the carb body. If it runs normally when you do this..... the Primer Bulb has a pin hole in it. (No joy..... read on)

If after doing the above you strill have the same problem remove the air cleaner and tighten all of the screws that mount the carb to the gas tank. Often over time the carb body will warp and then it starts getting air introduced into the diaphram that is between the cab and the gas tank. Tighten the screws. There are usually 5 of them. (Remember the body is plastic.... tight but don't break it) Then try another start.

If that does not work the diaphram between the carb and gas tank is probably damaged and will need replaced.

If you need parts info respond with your engine number or go to www.briggsandstratton.com and look it up for yourself using your ENGINE TYPE MODEL SERIES number found on the air shroud above the spark plug.

Thanks for choosing FixYa.

Kelly

Sep 29, 2010 | Mtd 22" Yard Machine Push Mower

2 Answers

Engine starts and runs fine, then dies.


My 5hp B-S is doing the same thing and found a post that seems to be the best answer. Replace the float. It runs out of gas if the float is not working properly.
Another cause may be the diaphram, maybe.
Mine is 12 yrs old so I plan on getting the whole carb rebuild kit
while I have it apart
Good Luck

May 16, 2010 | Mtd 22" Yard Machine Push Mower

3 Answers

Push mower starts, then dies, ad nauseum


Guessing you have a briggs and stratton motor with a tank mounted carb.Remove the tank and carb. from the mower and replace the rubber diaphram between the carb. and tank and clean it while its off

May 09, 2010 | Mtd 22" Yard Machine Push Mower

1 Answer

4.5 hp Briggs& Stratton push mower will not run


You need to rebuild your carb. The diaphram in the carb has gotten hard and is no longer acting as a fuel pump to pump the fuel to the carb. Get a rebuild kit and a compressor (for compressed air) to blow out the jet passages. It is an medium to easy job, just watch the small parts. ----------------------------------------------------------------------------- Hint: Before you remove your fuel/air jets, bottom them out first and count the number of turns it takes to bottom them out and mark it down for each fuel/air jet. When you go to reinstall the fuel/air jets bottom them out and then back them back out to the number of turns before removal. That way the fuel/air jets are set to the right number of turns when it was running right. Good Luck, I hope this helped Please rate me...Thanks

Jan 04, 2010 | Yard Machines 158cc Push Lawn Mower #11a...

5 Answers

Mtd ym 21" starts but wont stay running


Just checked my dad's for same problem. First thought is its not getting gas from tank; line is clean and no holes. On his 22" MTD push, i took off the air cleaner housing to expose the carb. Sprayed carb cleaner in carb throat, checked for smooth butterfly valve action, and also cleaned small jet/opening on left side of carb housing. Put it together and it ran perfectly. Don't buy a kit until you at least try this, its cheaper!

Oct 13, 2009 | Mtd 22" Yard Machine Push Mower

1 Answer

Mine revs up then slows down.


if the machine has a briggs and stratton engine with a primer next to the fuel cap?? your problem wil be the carby diaphram remove the tank and carby to replace the gasket and diaphram under the carby

Jul 18, 2009 | Mtd 22" Yard Machine Push Mower

1 Answer

Rough idle


You are correct there is no float it is a diaphram type carb.
My suggestion is to remove the fuel tank and carb. as they are hooked as one and come off as one
Note what bolts will have to come off to do this.
Remove air cleaner first Locate the 1/2 bolt near the middle of the tank remove it
now locate the 3/8 bolt in front of the tank to the left of the spark plug and remove it
carefully remove tank and carb. assembly pulling it toward you slowly and watch what is still hooked up like the governor linkage angle tank slightly to allow linkage to come through the throttle shaft hole of the carb.
Once its removed take it to a bench with a phillips screwdriver in hand
Look down at the carb.and notice how it is fastened to the tank and remove the phillips screws that secure it to the tank now seperate carb. from the tank may be stuck pry up on it with a screwdriver to remove it.
see the rubber gasket between the tank and carb.? REPLACE IT. comes as a kit which is called a diaphram and gasket carb. kit. Clean the rest of the carb. while it is off find your kit and reverse this procedure and this should take care of your issue. Known clean fresh fuel to go back once completed.

Jun 04, 2009 | Mtd 22" Yard Machine Push Mower

3 Answers

Briggs & Stratton Engine Won't Stay Running


Make sure none of the hoses are cracked or loose fitting

Aug 03, 2008 | Troy Bilt 17 Inch 29 Cc Gas Powered...

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