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  1. #1
    New Member
    Join Date
    Mar 2011
    Posts
    2
    Tractor
    Cub Cadet LT1050

    Default LT1050 - Will not start

    I have an LT1050 Cub Cadet riding mower that won't start. It has been sitting in the garage for about 5 months.
    We have had the battery checked and it is good.
    The solenoid, starter and ignition coil are good.
    We replaced the spark plugs.
    It still won't start. It cranks, and the motor turns a couple of times, then acts like it is locked up. Without the spark plugs in, the motor turns freely. I have been told to check the safety switches, but not sure what I am looking for. PLEASE HELP!

  2. #2
    Elite Member Car Doc's Avatar
    Join Date
    Mar 2009
    Posts
    3,246
    Location
    Kansas
    Tractor
    YM3810D Yanmar

    Default Re: LT1050 - Will not start

    If it cranks with the key its not going to be any safety switch's I don't think it is most like ly a fuel problem imho and draining out the old and put in new is where I would start.

    I have over did the Stabil before (gas treatment) and had mowers not start in spring for no apparent reason until I put all new gas in is it something you may have done last fall? hth

  3. #3
    Veteran Member
    Join Date
    Oct 2010
    Posts
    1,277
    Tractor
    NHtd75

    Default Re: LT1050 - Will not start

    Quote Originally Posted by monicamarcotte View Post
    I have an LT1050 Cub Cadet riding mower that won't start. It has been sitting in the garage for about 5 months.
    We have had the battery checked and it is good.
    The solenoid, starter and ignition coil are good.
    We replaced the spark plugs.
    It still won't start. It cranks, and the motor turns a couple of times, then acts like it is locked up. Without the spark plugs in, the motor turns freely. I have been told to check the safety switches, but not sure what I am looking for. PLEASE HELP!
    ---------------------------------------------------------------------
    If your lawn tractor has an over head valve briggs engine the valves may need adjusting to allow the compression relief to work as designed. If you have access to a DC amp meter of the correct value, it can be clamped around the positive starter cable to test amp draw. Normal amp draw is usually around 100 amps but can increase to as much as 300 amps (or maximum battery amps) with the conditions you describe.

  4. #4
    Platinum Member OldMachinist's Avatar
    Join Date
    May 2006
    Posts
    638
    Location
    Southwest Illinois

    Default Re: LT1050 - Will not start

    Check that no critters(mice, wasps and spiders) have built a nest in the muffler and it's plugged up because it sounds like back pressure is building up and stopping it.
    2006 Cub Cadet Z-Force50
    Agco Allis 1616H
    1974 SearsGT18 with 3 point,48"deck,Haban sickle mower and front dozer blade

    2000 Bobcat 453F with steel tracks
    1954 Ford860 with front end loader, 5' brushhog
    1952 Allis Chalmers CA with Woods L59 mower
    1947 Case SC
    1998 Honda ACTY 4WD mini truck
    And too many other small engine tools to list

  5. #5
    Gold Member Toddao's Avatar
    Join Date
    May 2009
    Posts
    280
    Location
    jeffersonville VT
    Tractor
    GC2410TLB

    Default

    Do you have gas in the tank ?

  6. #6
    New Member
    Join Date
    Mar 2011
    Posts
    2
    Tractor
    Cub Cadet LT1050

    Default Re: LT1050 - Will not start

    Gas? Can't believe I forgot that! Geez.
    Come on. I would not have bothered to create an account, register on this forum, go back to my email, wait for an authorization from the site, come back to the site, login AGAIN, get all my ducks in a row before I bothered to post a question if I was stupid enough not to put gas in the tank.
    For those that were big enough to help, my utmost gratitude. It was the valve clearance. I had to get a feeler gauge and adjust the rocker nut to .04 on the intake and .06 on the exhaust. Put it back together, (had to jump it off), and it started right up.
    Appreciate the help! Will recommend your forum. Thanks!

  7. #7
    Silver Member
    Join Date
    Aug 2008
    Posts
    151
    Location
    NWWisconsin
    Tractor
    Cub Cadet GT2542, Sc2400

    Default Re: LT1050 - Will not start

    You may as well consider valve adjustment as routine maintenance on those briggs engines. I even go a little tighter than spec.

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