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 Curtis B. Your Own Question
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29841
Experience:  Service manager and technician for all brands of engines with 40 + years of experience.
Type Your Small Engine Question Here...
Curtis B. is online now

The engine on my lawn mower will only run when you take the

Customer Question

The engine on my lawn mower will only run when you take the air filter off and hold your hand over the intake so that it sucks petrol up. Can you help

Submitted: 2 years ago.
Category: Small Engine
Expert:  Curtis B. replied 2 years ago.
Your main jet in the carburetor is plugged. It is the bowl bolt and the tube it screws into, these two parts make the main jet. Take the bowl off, and use a wire to clean the small ports in the screw and the center tube, and use a spray carburetor cleaner to wash them out. By holding your hand over the intake, your hand is acting as the choke,which by passes the main jet.