How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Hank F. Your Own Question
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14890
Experience:  Certified on Onan and Generac generators.
19372534
Type Your Small Engine Question Here...
Hank F. is online now

I have an 11hp &S engine 1986 vintage. Starts and runs

Customer Question

Hi I have an 11hp B&S engine 1986 vintage. Starts and runs great but after about 30 mins it will stop and will not start again until it is cold, I have tried to start it even to holding HT cable There is a small amount of power but not enough to create a spark.Then after about an hour or so it will start and run perfectly until it gets Hot and then I have to go thew the same routine. Please can you advise. Thank,s ***** *****.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Hank F. replied 1 year ago.
Hello, my name is ***** ***** I am going to assist you with this.This is a sign that the coil is breaking down. When it is cold, it will run fine, but once it warms up, the circuit inside the coil opens, and won't create a spark until the coil has cooled back down, and remade contact. You will need to replace the coil, making sure to leave a .010" air gap between the coil and the mgnet of the flywheel.

Related Small Engine Questions