Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Small Engine
This answer was rated:

I have a Briggs & Stratton 190CC series 875 engine on a Troy

Bilt Power Washer. The engine...
I have a Briggs & Stratton 190CC series 875 engine on a Troy Bilt Power Washer. The engine runs very rough and when the pressure handle is pulled for pressure the engine dies. I have done everything I know, changed gaskets, cleaned and lubed throttle, cleaned bowl, checked for manifold leaks. The only thing I have not done is replace the filter which seems clean and replace the float which appears to be ok.

Any suggestions? I am at a loss.
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 2 minutes by:
9/6/2010
Ranwell1
Ranwell1, Small Engine Technician
Category: Small Engine
Satisfied Customers: 10,304
Experience: I Own a Lawn Mower Sales and service business (37years). Have 2-cycle and 4-cycle certification.
Verified
Chat Conversation Started
Ranwell1 :

The actual probelm is most likely a dirty carburetor. Some of the small passages are partially restricted. Even though you may have cleaned the bowl, that is not the problem. This might help.

Ranwell1 :

Here might be what I call an emergency fix, but I want you to still read the rest of the answer as this may be just a temporary if it works.


 


 


The nut that holds on the carburetor bowl has several small holes in it. Some are on the sides and one may be in the end. In order to completely clean the carburetor correctly, you MUST clean these holes with a tag wire or a jet drill. (If a jet drill is used, DO NOT use a drill that is bigger than the hole or the engine will run too rich.) If the Picture does not show up, click on the Blue Text and you will see the picture.


 


 















[IMAGE][SRC][/SRC][ALT][/ALT][WIDTH]100[/WIDTH][HEIGHT]100[/HEIGHT][STYLE][/STYLE][/IMAGE]
View Full Image

Here is my comprehensive carburetor and fuel answer that may give you some ideas.


 


As engines sit or get older, fuel that is left in the carburetor can turn to gum and varnish and cause this and other problems. Also, any gasoline that was left in a gas can for a period of more than 30 days must be discarded because it also has begun to turn to varnish.


 


Today's gasoline's contain MTBE and alcohol. (Ethanol) They turn to "Junk and garbage" very quickly. Alcohol is partially water (H2O). And they call it "Oxygenated fuels! It is the oxygen that breaks down the organic compounds in the fuel and turns the gas to "Garbage" (Gum and varnish) The fuels we had just a few years ago had no alcohol in it and would store for longer periods of time before going stale... and fuel stabilizers do almost nothing to prevent the fuel from going bad with the changes in today's fuels.


 


Do not buy gas from the "Discount" Stations. The discount stations get a reduced price on gas because they may be buying fuel that is nearly 30 days old already. You may be getting fuel that's nearly stale right from the pump when buying from a discount station. Purchase your fuel from the well-known stations such as Shell, BP, Sonoco, Phillips 66 etc.


 


More than 70% of all of our repairs in our lawn mower business are due to this same issue. You most likely have dirt, gum, varnish...etc in your carburetor plugging up the small passageways and jets in the carburetor.


 


The carburetor must be removed from the engine. Clean all parts with carburetor cleaner and blow out all the small holes and passageways with compressed air. Remove all of the non-metallic parts since the carburetor cleaner will cause them to be disfigured decompose and plug the carburetor as time goes on.


 


Wash the carburetor cleaner off of the metal parts by washing them in warm, soapy water then rinsing with clean water. Dry them by blowing it off with compressed air. Make sure that all the passageways are blown dry before reassembling.


Reassemble using a NEW carburetor rebuild kit.


 


DO NOT TRY TO REASSEMBLE WITHOUT USING A COMPLTE CARBURETOR KIT! You will just end up having to do the job again.


 


ALWAYS clean the fuel tank and replace the fuel line when doing this repair or you may have to do it all over again. The inside of the fuel line disintegrates over time and these small pieces of rubber will plug up the carburetor too. Dirt and water from a dirty fuel tank will also plug up the carburetor. Find the Model, type and serial or code numbers off of the engine and take them to your local dealer to get the carburetor repair kit.


 


If you do the work yourself, take pictures or at least make a drawing of where all the linkages, gaskets, and component parts go. Correct reassembly is critical.


 


If the carburetor still doesn't work correctly, you may have to take it to someone who has an "Ultra-sonic" cleaning machine. This machine uses carb cleaner and ultrasonic vibrations to get the very small passageways clean when traditional methods fail.


 


If you don't feel comfortable with this kind of repair I would suggest sending it to a reputable shop.


 


Feel free to contact me here at this question anytime ...even after you hit the "ACCEPT" button ...and I will try to help further.


 


Please click "ACCEPT" or I won't get paid.

You may also consider sending a bonus if I have been helpful, Please leave POSITIVE feedback for me as this is how I'm rated. Remember, a neutral is nearly as bad as a negative. If not satisfied, contact me and I will make it right. Thanks


 


 

JACUSTOMER-iaf981ve- :

I am a mechanical engineer and I have tried all of your suggestions except ultrasonic cleaning the carburetor and using safety wire on the small holes in the carburetor. I saw no residue or varnish coating and cleaned everything thoroughly.

Ranwell1 :

This is a very, VEry common probelm with these. I am 99% sure that this is the problem. Try the bowl nut cleaning and see what happens. There is also a possibility that the carburetor can not be cleaned and may need replaced.

Ranwell1 :

You can see if the carburetor is the problem by assidn a very small anounjt of gas into the carburetor through the air cleaner port. (Take the air filter off first ) If it runs until the gas is vurned up, the you know the carburetor is the problem

JACUSTOMER-iaf981ve- :

Can you recommend a reliable engine shop for Briggs & Stratton in Houston? I think I will go there and let them overhaul the carburetor. I live in Clear Lake South of Houston.

Ranwell1 :

I live in Indiana, So I ould be of no help. You can go to the briggs & stratton website and use their dealer locater to find a good dealer. You may also want to check the yellow pages.

Ranwell1 :

This should not be a bery expensive repair.. About 1 hor labor or less pluss a $10 carb kit.

JACUSTOMER-iaf981ve- :

Thanks for your help and I will accept so you get paid. Thanks for the help.

Ranwell1
Ranwell1, Small Engine Technician
Category: Small Engine
Satisfied Customers: 10,304
Experience: I Own a Lawn Mower Sales and service business (37years). Have 2-cycle and 4-cycle certification.
Verified
Ranwell1 and 87 other Small Engine Specialists are ready to help you
Ask your own question now
Ask Ranwell1 Your Own Question
Ranwell1
Ranwell1
Ranwell1, Small Engine Technician
Category: Small Engine
Satisfied Customers: 10,304
10,304 Satisfied Customers
Experience: I Own a Lawn Mower Sales and service business (37years). Have 2-cycle and 4-cycle certification.

Ranwell1 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Curtis B.

Curtis B.

Technician

14,377 satisfied customers

have worked on and around most engine models for 35 yrs./Polaris ATV expert

Rick

Rick

Factory Authorized Trainer

4,218 satisfied customers

Outdoor Power Equipment technical trainer since 1990, covering eight states.

Jon K.

Jon K.

Small Engine Diagnostic Expert

2,995 satisfied customers

Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines

James W

James W

Small Engine Troubleshooting Expert

2,986 satisfied customers

7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

Vince O.

Vince O.

Small Engine Technician

2,858 satisfied customers

Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

Wayne

Wayne

Engine Rebuilder

1,607 satisfied customers

many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

< Previous | Next >

Related Small Engine Questions
My 40 kva generac generator does not transfer to backup
my 40 kva generac generator does not transfer to backup power when … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
I have a Honda EU6500is A generator and the choke closes
I have a Honda EU6500is A generator and the choke closes completely after starting after 4 or 5 seconds and shuts the motor off. I checked the choke solenoid motor and it is perfectly within specs. th… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
How do i hook up clutch cable to the auger to make it go.
how do i hook up clutch cable to the auger to make it go … read more
Vince O.
Vince O.
Small Engine Technician
High School or GED
2,858 satisfied customers
Where can I get maintenence on my RV Onon generator in or
Where can I get maintenence on my RV Onon generator in or around Palm Springs … read more
don
don
fleet superintendent
Vocational, Technical or Trade Scho
12 satisfied customers
My snow blower won't start. I dow
my snow blower won't start JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean? Customer: yes I dow JA: Do you plan on doing the work yourself? Customer: yes JA: Any… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
I have a mastercraft snowblower with atecumseh engine. 1986.
I have a mastercraft snowblower with atecumseh engine … read more
Donald
Donald
Owner / Technician
High School
2,229 satisfied customers
Curtis, The Ariens 1024 Pro runs like a champ, and starts
Curtis, The Ariens 1024 Pro runs like a champ, and starts like before, with the new plug.. I had to replace the "gripping" washer that holds the pinion that drives the bevel gear that rotates the chut… read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
I can't get my generator to start. I changed the plug. I did
I can't get my generator to start. I changed the plug. I did get it to start once and it ran rough with blackish smoke for about 10-15 seconds and then it died. … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Cant start my ariens snow blower. I have used seafoam and it
cant start my ariens snow blower JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean? Customer: yes JA: Do you plan on doing the work yourself? Customer: yes JA: Any… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
I have a 13kw generac that I have had for 15 years. Today we
I have a 13kw generac that I have had for 15 years. Today we lost power and the generator started as it was supposed to but never switched over to the power panel. I went outside and the system set li… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Is there a way to buy/replace engine on Generac generator
Is there a way to buy/replace engine on Generac generator ruined during Huricane? … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
I bought a very lightly used 208 cc 26 inch craftsman snow
I bought a very lightly used 208 cc 26 inch craftsman snow blower from previous home owner , whose house I bought. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
I would like to know the connecting rod torque specs for
Hello I would like to know the connecting rod torque specs for perkins 350E … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
SNOW BLOWER WILL NOT START. iT WILL START WITH START FLUID.
SNOW BLOWER WILL NOT START. iT WILL START WITH START FLUID. BUT THATS IT. IT HAS SPARK, I HAVE PULLED THE CARB AND CLEAN AND REINSTALL. STILL WILL NOT START. IT IS A TWO STAGE BLOWER.MODEL 921027.IT I… read more
Curtis B.
Curtis B.
Technician
Associate Degree
14,377 satisfied customers
I need to replace a kohler 25hp horizontal engine. it is
I need to replace a kohler 25hp horizontal engine. it is model CH25s with … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Unable to program homelink for garage opener remote.I
unable to program homelink for garage opener remote.I perform step 1 Hold channel 1 & channel 3 button until the light flashes rapidly, release buttons, then "at the same time" I press Channel 1 and t… read more
Eddie
Eddie
Home Improvement Contractor and Repairs
High School or GED
1,046 satisfied customers
My toro snow blower will not start toro 1000. Fuel is clean
I pored a fuil primer in the gass tank I waited a hour it started then shut off I bought this snow blower last year… read more
Donald
Donald
Owner / Technician
High School
2,229 satisfied customers
I have an Aeriens Snowblower and it seems to clog up rather
Second opinion] I have an Aeriens Snowblower and it seems to clog up rather easily. I have to continually stomp the chute to clear it. Can you help me? Thanks. … read more
JohnF2015
JohnF2015
High School Diploma
1,178 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x