Question about Briggs & Stratton Briggs Stratton Intek V - Twin Vertical Ohv Engine with Electric Start 22 Hp, 1" X 3 5/32" Shaft, ModelNo. 44K777 - 0027 - E1

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My 20 hp Intek v twin will start, run very fast for a few seconds then die, it will not statr again after. Plugs changed fuel filter and pump new

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  • nolnacs Sep 30, 2010

    The engine starts and runs , gas and spark fine. Engine now run very fast, throttle screw adjusted still runs very fastwill not idle normally

  • nolnacs Sep 30, 2010

    engine runs gas and spark ok, Engine now runs very fast throttle adjusted all the way down engine will not idle can not slow it down

  • nolnacs Sep 30, 2010

    Springs are good ,manuel link great thank you, working on governor now , do I need that speacial tool to adjust it

  • nolnacs Oct 03, 2010

    ok springs are ok gas spark fine if i run it and hold the idel closed with my finger it idels fine when iI let go it drops wide open and i must sut it down for fear it will blow up, feel it is the govener shaft, continues to stay fully open even if screw is all way closed. Just give me an idea or is it time for a pro to look at it

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Hi and welcome to FixYa. I am Kelly. What your describing is a fuel starvation / lean fuel mixture symptom.

First off remove the fuel supply hose to the carb and check fuel flow. It should be a normal gravity flow rate. If you don't have flow check the bottom of the gas tank for debris. I note you already changed the fuel filter and pump.

--Check to make sure that the fuel solenoid on the bottom of the float bowl is working correctly. You can unplug it and then test it with battery power to see if the plunger is moving.
--Also check it in place for 12VDC with the key on and seat switch activated (if installed).

Your parts list can be found here:
http://www.briggsandstratton.com/document/index.aspx?doc=MS3562_C_LO.pdf

The solenoid is item 947A of the above link. (pdf file page 5 top right)

With the fuel hose connected float bowl removed you should also chec the fuel float needle item 105 for proper operation. Float down... fuel flow.... GENTLY lift the float to LEVEL there should be no fuel flow.
These are the 2 most common problems:
Either the fuel bowl solenoid is not being energized / not working or.... (item 947)
There is debris in the needle and seat. (Item 105)

If you do not have 12VDC to the fuel solenoid you will have to find out why. (Safety switches.. broken wire etc.)

Before you reinstall the fuel solenoid clean the area with carb cleaner.

Thanks for choosing FixYa.

Kelly

Posted on Sep 28, 2010

  • 4 more comments 
  • Kelly
    Kelly Sep 30, 2010

    Hi again,



    Your saying it just runs VERY fast sounds like a broken spring. Now it is a matter of figuring out which one. It can be the butterfly spring or any of the linkage springs or a governor spring. Most of the time what happens is the end breaks off a spring and all you will see is a straight spring wire after the actual spring vs the 180 degree curved end. I.e then end piece snaps off or the spring for some reason became unhooked. Take a look at all of the springs. If you find one not connected or broken let me know which one. It could be a loose governor arm to governor stem also The governor stem has a slot on the top of it. It should move with the governor arm as you move it. If the arm moves and the the stem slips that can be the source of the problem.



    I will stick with you on this. I have been working on B & S engione since the mid 60's. If we have to I will point you to a service manual so we can resolve this. Look for broken springs and or a slipping governor stem for the moment.



    Kelly

  • Kelly
    Kelly Sep 30, 2010

    Your looking for any problems in items 209 - 216 of the parts link (Page 7)



    http://bsintek.basco.com/BriggsDocumentD...



    Kelly

  • Kelly
    Kelly Sep 30, 2010

    Hi again,



    Here is the service manual:



    http://www.mymowerparts.com/pdf/Briggs%2...



    Hopefully I have the right one. Your post says it is for a vertical engine and the manual is for the OHV V-Twin.



    Take look at pages 34, 35 initially and check for the spring at the governor. Figures 2 and 3. The figures 17 and 20. Governor adjustment procedures are to the left of figure 20 BUT that is to be accomplished on an overhaul. Final governor adjustments are on page 101. This is where you will have to make adjustments IF you do not have any broken springs.



    Hopefully this will get you pointed in the right direction. I have the wrong manual for you engine let me know and I will get the right one with basically the same steps only different location.



    Kelly

  • Kelly
    Kelly Sep 30, 2010

    I use a thin bladed screwdriver to make the adjustment. I would recommend making a scribe mark at the current position from the STEM slot to the metal of the governor arm. Adjustments are in very very small increments. No more than 0.005 each adjustment. It only takes a minor movement on the stem to make a huge differnce in the way the governor performs. When you get it to where you think it is right engage and disengage the blades and see if it perfroms properly. If not keep making minor adjustments. With the blades engaged pull the governor arm to a slower speed momentarily long enough to notice a decrease in speed and then let go. It should return to normal speed in no more than 2 seconds. The goal is to get the governor to compensate for any load or unload condition without noticing a decrease in engine speed.



    Kelly

  • Kelly
    Kelly Oct 01, 2010

    I am just doing a follow up. How did you make out on the governor? Here at FixYa communication is weak at best and in my experience here no news is either everything went well or.... we have other things to sort out.



    Kelly

  • Kelly
    Kelly Oct 03, 2010

    Wow. You sure to have an engine that is putting up a good fight.

    If you have made the governor adjustment by losening the bolt on the arm and any movement in either direction has no effect on the speed of the engine it is possible that the governor inside the motor may have failed. It is so so rare that this ever happens. It is possible but in all my years I have yet to see one that came apart inside the motor. The governor (Item 219 of below parts link) has 2 rotating flyweights on it and if one of the flyweights failed it will do what you describe. In my experience the problems with governors are usually the result of a broken / missing or improperly conected spring OR linkage.



    Take a look at page 7 of the parts manual:

    http://bsintek.basco.com/BriggsDocumentD...

    Specifically Item 209 and 211



    I am trying to think of any other possibilites..........



    Again this is the service manual (ref)

    http://www.mymowerparts.com/pdf/Briggs%2...



    On page 27 figure 13. Just for grins look and see if one of the throttle plates has come off the throttle (butterfly) shaft. Also check the throttle shaft seal (fig 13) to see if it is loose allowing air into the carb.



    The governor link in figure 20 & (Page 30)should also be checked. When they are refering to inside out that is the direction linkage is installed.



    Note the carb linkage to governor plate connection on figure 22 (Page 30)



    In figure 27 page 31 the governed idle spring if installed incorrectly can also cause big time speed problems. (I have a suspicion that this drawing is wrong..... as figure 28 shows the exact opposite.) Figure 2 page 35 appears to be correct.



    Just for educational purposes... the installed governor inside the engine with flyweights is shown Page 36 Figure 8 (There is not any timing required for the governor.)



    Now on page 100 Figure 25 look at the installed position of the carb linkage.



    I just went through what I think is every possibility of what can be causing your run away speed problem. Unless you find something after doing the above I am nearly out of answers. I gladly will answer any of your questions.



    Kelly






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