Page 2 of 2 FirstFirst 12
Results 11 to 18 of 18
  1. #11

    Join Date
    Apr 2012
    Posts
    4
    Location
    Western Australia
    Mower
    Johnsared 22hp Husqvarna YTH2754

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Sounds like fuel starvation either needle and seat sticking or faulty fuel pump be sure the fuel tank vent is clear

  2.  

  3. #12

    Join Date
    Sep 2012
    Posts
    16
    Location
    Texas
    Mower
    Scotts

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Ok will do. In the cap right?

  4. #13

    Join Date
    Apr 2012
    Posts
    4
    Location
    Western Australia
    Mower
    Johnsared 22hp Husqvarna YTH2754

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Yup also listen for a hissing sound when opening cap

  5. #14

    Join Date
    Sep 2012
    Posts
    16
    Location
    Texas
    Mower
    Scotts

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    I'm bringing it home today to work on. I had 4 weedeaters not want to run at all yesterday and 1 other lawnmower. Got them all working but 2. So, I might be able to get to this one today again.

  6. #15

    Join Date
    Apr 2012
    Posts
    36
    Location
    NSW Central Coast, Australia
    Mower
    WheelHorse 268-H, John Deere LA120 & L110

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    I have the same/similar mower.

    My guess is your looking at an issue around the electric fuel shut-off valve/solenoid at the bottom if the carb. Check that it goes "click" when the ignition switch is turned on (before starting). If it's not engaging it can still leak allowing fuel to enter the float bowl slowly but not enough to run the engine a full throttle.

    Best of luck.
    Neo

  7. #16

    Join Date
    Oct 2012
    Posts
    6
    Location
    Illinois
    Mower
    MTD - Yard Machines

    Exclamation Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Quote Originally Posted by dakotanut View Post
    I have this riding mower that I am trying to fix. The choke linkage broke and I sort of fixed it for awhile. Doesn't explain the bad idle or dieing problem. I can get it started and run it for about 5 to 10 mins or so maybe longer and then it will start to act like it is dieing and when i push the throttle to slow it will run for awhile. Then it will start acting up all over again. If I reach up and grab the trottle arm on the carb and pull it so it revs up it will last awhile and start all over again. I've cleaned the carb and it still acts up. I can start it now with out the choke though. I'm not sure about the linkage from the motor to carb. It doesn't seem to be right cause it barely moves and not freely. Thanks for any help. It is killing me.
    Change the air filter or clean it well. Also you may want to replace the spark plug. I had a problem that was like this and that was the fix.

  8. #17

    Join Date
    Nov 2014
    Posts
    1
    Location
    Kentucky
    Mower
    MTD - Yard Machines

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Check that the fuel tank cap can breath. If there is a clear plastic cap under the main tank cap - throw it away! Air has to get into the tank to replace the fuel that goes out. Otherwise the fuel don't get to the carb in full flow.

  9. #18

    Join Date
    Aug 2014
    Posts
    17
    Location
    Dixie
    Mower
    1988 38" 12HP I/C B&S MTD Lawn Tractor

    Re: MTD Yard man w/ 18 HP Briggs and Stratton twin 2 won't stay running

    Put you some Stabil in the Fuel Tank.

    Read the Instruction's on how to adjust the Low Idle Mixture, and the High Speed Mixture. If you haven't messed up the Needle Valve's, by turning them in too much,, then you may be able to get your engine running better.

    Over time,, Gas Residue will get in the small opening's where the needle valve is,, and by adjusting them,, while useing Stabil Gas Treatment,, may disloge the Residue,, and let your engine get the correct Fuel/Air that it need's.

    Read the Service Manual carefully until you understand what it is saying and the correct way to do this.

    When I do my 12 hp single cyl; I first adjust the Idle Speed,, then turn the Idle mixture out, until the Engine Slow's,, then turn it in,, until the engine Slow's,, then turn it back out in the Middle. You have to count the turn's to do this, each way.

    Then I open the Throttle all the way,, and adjust the High Speed the same way.

    Good Luck
    Barney,
    1988 38" 12hp IC B&S MTD Yard Tractor

Similar Threads

  1. Manual for MTD Yard-Man HE4160
    By Tiggy in forum MTD Forum
    Replies: 2
    Last Post: 09-06-2013, 08:20 AM
  2. Replies: 2
    Last Post: 09-22-2012, 04:44 PM
  3. mtd yard man riding lawn mower front spindle rubbing deck
    By yogalady in forum Small Engine & Mower Repair
    Replies: 6
    Last Post: 08-02-2012, 08:31 AM
  4. MTD YARD-MAN RIDE ON HA 4145 - choking up with grass
    By harrym1byt in forum MTD Forum
    Replies: 4
    Last Post: 06-19-2012, 11:12 AM
  5. Repairs Engine Won't Stay Running? 18hp B&S Twin
    By kyle3194 in forum Mower & Equipment Operation
    Replies: 2
    Last Post: 11-09-2011, 10:37 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •