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Cub cudet 31p7770299e1 briggs stratton engine

I HAVE A LT1018 CUB CUDET WITH A 31P7770299E1 BRIGGS STRATTON ENGINE , IT START AND RUN ,HAS ON POWER IDDLE OK AFTER 1/2 SPEED IT SPIT AND POP THRO CARBURETOR CAN'T RUN A FULL SPEED , CHECK KEY IN FLYWHEEL, CLEAN OUT GAS TANK AND LINES NEW FILTER , CLEAN CARBURETOR , REMOVE HEAD DID VALVE JOB AND RESET VALVES , REPLACE SPARKPLUG DIDN'T HELP STELL SPIT AND POP OUT OF CARBURETOR, ??? ON WHAT TO DO NEX,

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  • Cub Cadet Master
  • 1,917 Answers

Check and see if intake valve seat is loose as motor gets hotter condition worsens

Posted on Jun 07, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ccrozier_agr
  • 36 Answers

SOURCE: 2 1/2 Briggs......doesn't run smoothly....surges at all speeds.

Hi, Check that you have the correct spark plug fitted or fit a new one as it sounds like your plug is getting hot then shorting out.
Sometimes the magnito can do this as well. but I would start with the plug.

Posted on Nov 29, 2008

  • 86 Answers

SOURCE: Briggs & Stratton engine on Murray lawn mower

I always replace the air filter if its a paper element, and even if its a foam element I replace it rather than clean it. That said, engine stumbling is rarely and air flow problem - but it could be, so having a new filter assures no air restrictions.

I would drop the carbuerator bowl. On the bottom of the carb, near where the fuel line comes into the engine, should be a nut. Removing this nut allows the bowl to drop off the carb. Some engines the bowl screws off, you will have to look at the bowl. Often the bowl has sediment or sludge buildup inside. Cleaning the bottom of the bowl can prevent that sludge/sediment from plugging the intake tube. Even on newer mower models this is a common problem, the gas line tubing interior breaks down and the inside of the tubing can start degrading - ending up in the bowl as sludge.

After cleaning the bowl, I would add one ounce of fuel line cleaner to a full tank of fuel and run the entire tank of fuel. This will clean any deposits or "varnish" from the interior carb parts. Doing this and the first step will assure your carb is clean and functioning.

If that doesn't help, then I would look at the spacing between the magneto and coil assembly. If you want to do that I'd like you to write down all the model numbers and serial numbers on the engine nameplate, that way I can give you specific directions.

Hope this helps,
Gregg

Posted on Mar 29, 2009

#1 Taper
  • 1040 Answers

SOURCE: Engine only runs with choke full on. Dies when off full choke.

Hi Dave, it sounds crazy, but try this. Check your gas cap. It could be clogged, causing a vacuum to occur in the tank, and therefore not allowing the carb. to take on gas. It usually take 10-15 min. for this to occur. The next time you run the mower and it starts to stall out, loosen the gas cap and see if it begins to run again. If it does, then you know that the gas cap is clogged.

Jim

Posted on Jun 05, 2009

  • 1 Answer

SOURCE: Cleaned the Briggs & Stratton Riding Lawn

kehmahcliff:
It looks like that your valves need to be maintenanced. This can be done by small engine repair shops. They should have the proper tools.

Also the "timing" of the spark and the fuel injection could be a problem. I hope this helped you.

Greetings Joe

Posted on Sep 30, 2009

  • 18 Answers

SOURCE: I have a 4 hp Briggs and Stratton engine - stops running with gas

01 Sounds like you are describing the primer as being on the front of the carburetor air filter body. The line you describe is probably used to force air from the primer into the carburetor or into the fuel tank (a box of metal about 6" long by 3" wide by 3" deep?) on which the carburetor body mounts, from your description.
02 The engine will shut down with a little bit of fuel in the bottom of that tank. You should be able to remove the fuel cap, located on the top of the tank, just to the left of the carb and see into the tank. The carb does draw fuel from this tank as it runs.
03 How long does it run before quitting? If it runs ok and you get a small yard done and the engine does not emit black smoke, that might be normal.



Posted on Apr 19, 2010

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1 Answer

Cub cudet 31p7770299e1 briggs stratton engine


only thing left is valve seat is loose and poping loose at a certain rpm causing backfire threw carb has to be intake valve

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22hp briggs and stratton intek v-twin model number 470577-0284-e1


to much fuel either the needle valve is stuck or the float is bad tear apart the carb acid dip and clean take float submerge in gas for 20 min pull out shake next to ear if you hear liquid inside its bad

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always check spark and compression first spark needs to be blue and compression should be 120 but will barely run on 80psi if both are fine rebuild and acid dip carb also check muffler for carbon build up clogged muffler means no power

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Briggs & Stratton Vertical OHV Engine 18 hp blowing white smoke engine run great but a lot of smoke and also have oil being spit out of the black hose that come from engine to the carb.


Check your oil.

If it is overfilled, milky, or smells like gas. Your going to need to change that ASAP. It sounds like the float has stuck in the past or is still sticking, and it has flooded the crankcase with gas, which has mixed with the oil. And because it is overfilled it comes through the breather hose into the carb. This also explains the smoke most probably because the oil is spewing in the carb through the breather and being burned.

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Ok i have a problem with my Briggs & Stratton 16HP v-twin vanguard engine.When i start the engine and rev it up when i idles back down it sits there and rev's up and down then it straightens out and...


It appears that you have a slight mis-adjustment in the idle speed and idle mixture. To adjust setup, start with at least a half tank of fuel, and have engine at operating temperature (That is warm but not overly Hot). The Briggs & Stratton Website manuals section should show the locations of the adjusting screws if you are not sure of them.
To adjust idle speed set Throttle control to minimum and adjust screw on throttle butterfly to maintain a good idle speed. To adjust idle mixture, screw in idle mixture screw (Lean) until motor falters and then screw out (Rich) until it falters again. Correct setting is the halfway point of these two positions. You may have to re-adjust idle speed again and also the mixture to get best running.
If you are not comfortable doing this, take it to a B & S dealer.

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Surging is usually caused by a lean condition You can try to turn the mixture screw ccw about 1/4 to 1/2 turn. If this does not solve the problem your carb will have to be removed, cleaned thoroughly, and reinstalled.

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I have a cub cadet lt 1018 18.5 hp briggs &


Im sorry but your motor has went to motor heaven,and most of the tme its cheaper to buy a new motor than it is to repair it and bring it back to life,

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