B&S Engine cutting out

Discussion in 'Mechanic and Repair' started by Scott's Lawn Maintenance, Aug 26, 2007.

  1. Scott's Lawn Maintenance

    Scott's Lawn Maintenance LawnSite Senior Member
    Messages: 326

    Billy Goat loader has 16hp vanguard engine. It will run fine
    for acouple of minutes then engine will start to cut out
    under full throttle. I have changed spark plugs, fuel filter,
    drain fuel tank and new carb. kit. What could be still causing
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Does it shut down completely or just start running bad ?

    Post the model and type numbers off the engine so I can see exactly what you have there.
  3. dcondon

    dcondon LawnSite Silver Member
    Messages: 2,246

    Have you looked at and cleaned the air filter????
  4. Sammy

    Sammy LawnSite Bronze Member
    Messages: 1,734

    If the same cylinder keeps shuting down, get a new coil for that side.
  5. Scott's Lawn Maintenance

    Scott's Lawn Maintenance LawnSite Senior Member
    Messages: 326

    The engine model number is 303442, type 1327-E1
  6. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    You may want to check the coils as Sammy implied.

    Do this by removing the plug wires and set them back on loosely. Start the engine and run till it starts acting up then remove each plug wire one at a time WITH pliers while not touching anything else.

    If the engine dies removing one that would be the good coil, If it continues to run but still bad when the other is removed that will be the bad coil.

    Set the air gap on a new coil with any business card between the magnet and coil.
  7. Scott's Lawn Maintenance

    Scott's Lawn Maintenance LawnSite Senior Member
    Messages: 326

    Thanks everyone for your replies. The problem
    was the fuel cap , it was not venting properly
    causing fuel from getting to the carburetor.
  8. topsites

    topsites LawnSite Fanatic
    Messages: 21,653

    ehehehe I had this problem for YEARS on my 10hp briggs Intek Billygoat.

    Much like yourself I about rebuilt the entire blower, it would work again and then all of a sudden act stupid, the problem never relented, it was just better and worse. I tolerated it best I could, most of the time choking it and opening it back up would get it revving again, but very annoying, always in the field and always intermittently... Sometimes it'd run great for long stretches, other days it was stop and go, we even replaced the cylinder head gasket at one point, this thing sucked on my labor hours for a long time, thousand dollar blower.

    I finally found the culprit to be a sticking carburetor bowl float, a load of fun to remove and re-install, but once I cleaned this up I never had the problem again. I found a slew of what appeared to be rust particles down in the bowl, needless to say I sprayed this thing out with carb cleaner and compressed air until there wasn't a hint of dirt, seems to be ok now. One other thing I did, since these models do not appear to have an inline fuel filter, is to splice the rubber fuel line and install one of those, I'd be willing to bet that is the first problem, but whatever.

    Good luck, lets hope what you did fixed it, but I thought I'd mention this because this problem about had me in tears once or twice :laugh:
    Peace out

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