Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  
DoubleT

Ignition Wiring

Recommended Posts

DoubleT
I have acquired an older model Simplicty Lawn Tractor Model 4211. It is a great piece of equipment but it would die after 15 minutes of operation. I was told that the coil was heating up and shutting down. I replaced the coil, condensor and points and I am not getting any spark. I am not sure I wired it properly. I have all three wires going to the same place on the points. The wires are form the coil, the condensor and the ignition switch ground wire. I read the discussion topics and realized my key was shearing, I will try that but stil am curious about the wiring.

Share this post


Link to post
Share on other sites
Al
Hi,
The wires are correct, a sheared key is a likely prospect particularly if the flywheel was not torqued correctly. Also check the washer under the flywheel nut. It is a cupped spring steel washer and has to go on with the dome up in the center. If it gets flipped over, you won't be able to keep a flywheel key in it. I would have recommended you replace the whole coil, points, and condensor with one of the new solid state module coils. Then you remove the point plunger and drive a plug in the hole and eliminate 2 problems 1 the points and condensor and 2 the common oil leak around the plunger that often later seeps down the side of the engine. You can also install the module on the coil you have. They are made by Briggs and work very well, called Magnetrons, they sell in the 15.00+ range. I am at the house and don't have a price sheet. Good luck, AL

Share this post


Link to post
Share on other sites
Al
Hi,
I agree, I believe the Magnetron is only used with 2 leg coils, and I believe the older engines had 3 poles. The alternative is to use one of the aftermarket kits. I have used very few, the ones I did seemed to work, I used them on appplications like chain saws that points were no longer available for etc. These would be like Atom, Mega-fire etc. You just remove the points and as I remember the condensor and put the 2 wires from module between point lead and ground. They will have instructions. Briggs had a service bulletin several years ago about them, saying they required higher cranking speeds and changed the timing etc and did not recommend using them. I don't know how correct it was, but we always try to stay OEM if possible. Good Luck, Al

Share this post


Link to post
Share on other sites
Floydster
Bob,

Don't know. I haven't tried it yet. I'm trying to make
it through the grass cutting season until I can afford
some downtime.

Right now my tractor runs about 30 40 minutes until it
gets hot and I hit a bump or pop a wheelie. Then it
starts missing and the power goes away. I quit for the
day and finish mowing the next day. Very irritating but
I don't have time through the week to play with it.

Will update you if I ever get around to solving the
problem and/or get an ignition module installed.

Thanks,
Roy

Share this post


Link to post
Share on other sites
Kent
Thanks for the advice, I replaced the sheared key, torqued the nut to 140lbs and it worked. Now I need to redo the carb and get a tiller attachment also..It runs great for now. Thanks again!

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)

    There are no registered users currently online

  • Today's Birthdays

    No users celebrating today
  • Recent Status Updates

    • F.U.N.

      F.U.N.  »  sandyhillbill

      Dear Sandhillbill
      Can you please copy me on this data, for Sun Star parts list.
      :
      September 12, 2004 Mike I sent you a PM and have all the mfgs. available for the tiller/hitch/pto/liftgroup if you need me to send them to you. Let me know. Thanks, F.U.N.    
      · 0 replies
    • gwiseman

      gwiseman

      Club banners are available  for members use during show season https://simpletractors.com/forums/topic/57849-simpletractors-club-banners-available/
       
      · 0 replies
  • Adverts

×