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 Donald Your Own Question
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1802
Experience:  I have 25+ years of experience repairing 2 & 4 cycle engines
72377906
Type Your Small Engine Question Here...
Donald is online now
A new question is answered every 9 seconds

Out of ideas. New carb, filter, plug and gas. Even changed

Customer Question

Out of ideas. New carb, filter, plug and gas. Even changed the coil. Still won't start. Runs if you put gas or starting fluid in carb. Any thoughts?
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: New fuel and no shut off
JA: Do you plan on doing the work yourself?
Customer: Would like to
JA: Anything else we should know to help you best?
Customer: Briggs and Stratton 675 on craftsmen pressure washer model###-##-####
Submitted: 1 month ago.
Category: Small Engine
Expert:  Donald replied 1 month ago.

Hello. Thank you for choosing Just Answer. My name is***** will be happy to assist you.

Expert:  Donald replied 1 month ago.

Have you checked to make sure you are getting a good, steady flow of fuel, from your fuel tank, to your carburetor?

Customer: replied 1 month ago.
line is clear
Customer: replied 1 month ago.
Any other thoughts?
Expert:  Donald replied 1 month ago.

Thanks for your reply. If your engine will only run briefly, if you spray starting fluid directly into your carburetor, then it is very likely that your carburetor is at fault, although it is new.

Customer: replied 1 month ago.
What would be the issue?
Customer: replied 1 month ago.
Or could be the issue. I cleaned before I installed to make sure all clear.
Expert:  Donald replied 1 month ago.

The main jet could still be clogged. The screw that secures your fuel bowl to your carburetor, is your main jet. It has three small holes in it. Did you clean these holes?

Expert:  Donald replied 1 month ago.

Please take a look at the image links below.

Expert:  Donald replied 1 month ago.

The images shows the holes in your bowl bolt ...

Customer: replied 1 month ago.
all clear I will double check
Expert:  Donald replied 1 month ago.

Use a small wire to clean these holes.

Expert:  Donald replied 1 month ago.

Also, clean the hole in the center of your carburetor, where your main jet screws into.

Expert:  Donald replied 1 month ago.

You can use a welding tip cleaner to clean this area, due to hole being larger.

Customer: replied 1 month ago.
Cleaned both. Still not starting.
Expert:  Donald replied 1 month ago.

Did you replace the gasket between your carburetor and your intake manifold?

Expert:  Donald replied 1 month ago.

How old is your engine?

Customer: replied 1 month ago.
Gasket is new and engine is roughly 10 years old. Only use about twice a year.
Expert:  Donald replied 1 month ago.

I am lead to believe that your carburetor is the problem. Another possibility is your intake valve may not be properly sealing.

Expert:  Donald replied 1 month ago.

Have you checked to see if your fuel cap is venting?

Expert:  Donald replied 1 month ago.

After you removed the fuel bowl from your new carburetor, did you notice any sediments in your fuel bowl?

Customer: replied 1 month ago.
I have not checked the cap. I will try that. I have not pulled the head to check valves or Pistons. will that slow fuel flow?
Customer: replied 1 month ago.
Fuel in bowl looked clean, no sediment.
Expert:  Donald replied 1 month ago.

If your fuel cap is not properly venting, it can restrict your fuel flow to your carburetor.

Customer: replied 1 month ago.
could new plug be faulty. Not much spark. And just checked gap.
Expert:  Donald replied 1 month ago.

I do not believe your spark plug is the issue. If it was causing our problem, the starting fluid would not cause your engine to start up briefly. Keep in mind that an engine needs three things in order to run. Fuel, Spark, and Compression.

Expert:  Donald replied 1 month ago.

Our problem is likely fuel or compression, rather than spark.

Customer: replied 1 month ago.
I did do a simple compression check with finger over plug hole. Don't have compression gauge to get exact.
Expert:  Donald replied 1 month ago.

I have purchased new carburetors that were bad straight from the box.

Expert:  Donald replied 1 month ago.

Carburetors are tested at the factory, and sometimes all fuel is not completely drained, or evaporated.

Customer: replied 1 month ago.
Can I keep question open. 10:00 here going in house will work on more tomorrow.
Expert:  Donald replied 1 month ago.

The residual fuel will eventually turn stale and cause carburetor issues, clogged jets and fuel passages. Yes, there is not a time limit on your question. We can continue tomorrow.

Customer: replied 1 month ago.
Thank you for the information. I will try more tomorrow. If anything else I will continue.
Expert:  Donald replied 1 month ago.

You are very welcome!