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 Vince O. Your Own Question
Vince O.
Vince O., Small Engine Technician
Category: Small Engine
Satisfied Customers: 2972
Experience:  Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers
Type Your Small Engine Question Here...
Vince O. is online now
A new question is answered every 9 seconds

I have a Craftsman snowblower Model # 247.88830, the problem

Customer Question

I have a Craftsman snowblower Model # 247.88830, the problem started with the low speed surging, the engine speed would vary fast and slow. Now it is at full engine speed, with the following, backfires and if it reaches full speed, it starts to cut out under load and misfires bad. I replaced with new carb, but did not help.
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: Yes , the fuel is clean, and I replaced the inline tank filter. There is no shutoff.
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: The snow blower is approx. 8 years old but always maintained.
Submitted: 10 months ago.
Category: Small Engine
Expert:  Vince O. replied 10 months ago.

Hello, did you check the plug? If black replace with a new one