Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
KSever

Briggs actting strange

Recommended Posts

KSever
Been runinng this Briggs 10 HP cast iron for nearly a year now in the Landlord with out any problems except for iceing up in the winter. One problem though---> Runs really good for about two minutes at 3/4 throttle then begins to back fire and wants to quit, runs real good at 1/2 throttle all the time. I am running the coil,points,battery ignition and have tried adjusting the points, Adjusted the carb to run smooth but then again it will start backfiring after about two minutes on 3/4 throttle. I have tried changing the ignition back to the electronic ignition but no change so I put the coil ignition back on yesterday. Seems as though when it wants to kick in with the governor this happens also. I did also change the head gasket yesterday since it was leaking just a bit (got a NOS headgasket). Any ideas and thoughts would be greatly appreciated.

Share this post


Link to post
Share on other sites
HubbardRA
Sounds like you have a fuel flow problem from the tank to the carb. Runs good till the fuel level drops in the carb. Backfires indicate a lean condition caused by lack of fuel. Check the fuel line and filter. Make sure gas is flowing a full stream.

Share this post


Link to post
Share on other sites
BLT
My thoughts are the same as Rod. Take off fuel line at carb and blow back into tank and see what happens for a while. Don't be surprised how fast gas tanks collect debris.

Share this post


Link to post
Share on other sites
KSever
Bob and Rod, Thanks for the ideas, I reran the gas line so it had a longer and lower loop going to the carb. Runs like a champ now with no backfire. Didn't think it would run this good, in fact it hasn't since I got the tractor put back together a year ago. Kris

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  

  • Who's Online (See full list)

    • Snojetter
    • BLT
    • BryanJ
    • gwiseman
    • stew2YWP
    • MARK (LI)
  • Today's Birthdays

    1. JoggerFogger
      JoggerFogger
      (49 years old)
  • Recent Status Updates

    • Paul M.Murphy

      Paul M.Murphy

      Hello glad I got on this site. I hope to upload a couple of photos of my Simplicity Broadmoor 
      Model 707 Tractor. I have replaced all the belts on it and installed a new ignition switch.
      Have a mower deck which was in poor shape , repaced a couple of bushings and welded the
      deck where there was some holes. The tractor and mower deck came from a friend and the 
      mower deck metal was getting pretty thin. Some new metal was put in it and we also undercoated the underside of the deck. This was done by my friend Greg Toulman.
      I have not put the mower deck on the tractor yet, waiting for Greg to come home and give me a hand. Can you please tell me if there is a manual for the mower deck and where I could get one.
      I would also like to get some moon wheel discs as well.
      I will try and down load some photos of the tractor when my wife shows me how to. 
      I really love driving this tractor and also how well it is made compare today's tractors, especially the flexible rear end and the rollers.
      Tell the next time 
      Paul
       
      · 8 replies
    • jbrooks

      jbrooks  »  Talntedmrgreen

      Josh
       
      folowing  this from a link at the downloads.  I just rescued an AC 920 with the lambodini diesel. I can' t download  yet .  Where did you find the PDF copy you posted. . I would like to figure out how to adjust the injection pump. 
      I assume it's a bosche, correct
      · 0 replies
  • Adverts

×