Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

I have a Ch980 Kohler engine that is gaining oil level. The…

Customer Question
I have a Ch980 Kohler...
I have a Ch980 Kohler engine that is gaining oil level. The crankcase is filling with gas as it runs. You can smell unburned gas from the exhaust and it doesn't seem to have as much power.
Submitted: 2 years ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 4 hours by:
3/5/2016
Technician: Curtis B., Technician replied 2 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,847
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

The CH is carbureted engine and uses a pulse fuel pump. So the only way fuel can enter the crankcase is through the needle valve and float of carburetor. Is the fuel tank above the carburetor? Do you have a fuel shutoff valve on the tank line? If you smell fuel from exhaust , you can have a cylinder that is not firing. Do a cylinder balance test on the engine. This is loosening the spark plug wires, and then with engine at idle, remove one spark plug wire at a time. If engine dies when either plug wire is removed, the opposite cylinder is not firing.

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago

Th fuel in the oil can only get there while engine is shutoff. It will not get there while engine is running.

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago

Did you find problem?

Ask Your Own Small Engine Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,847
31,847 Satisfied Customers
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

Curtis B. 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

31,847 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

2,927 satisfied customers

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

Wayne

Wayne

Engine Rebuilder

2,041 satisfied customers

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

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

< Previous | Next >

Related Small Engine Questions
I have 1966 Deere 110 with a kohler engine K181s That has
I have 1966 John Deere 110 with a kohler engine K181s That has gas line going from tank to carb. No external fuel pump. does it have diaphragm in the carb? Anyway it shoot gas an oil out the vent, sti… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
2004 Super Z with 25 hp Kohler leaking oil out of breather
2004 Hustler Super Z with 25 hp Kohler leaking oil out of breather above valve cover behind seat… read more
Donald
Donald
Owner / Technician
High School
2,582 satisfied customers
I have a CH730S engine on my mini skid loader. It is new
I have a CH730S engine on my Thomas mini skid loader. It is new with new carb, hydraulic pump etc. it has 30 hours on it and not used for about 5 months. When started it ran rough, I increased the rpm… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,871 satisfied customers
I have a Kohler CV490S OHV engine after a little while of running
I have a Kohler CV490S OHV engine after a little while of running it stats to put out a lot of white smoke. Not sure what to do.… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a Troy Bilt 2620 snowblower that starts ok, but after
Good afternoon... I have a Troy Bilt 2620 snowblower that starts ok, but after a short while blows white smoke and almost stalls. Then it runs fine for a short while and blows white smoke again. This … read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a 6.75 kohler engine with excessive blowby threw the
I have a 6.75 kohler engine with excessive blowby threw the crankcase ventilation tube.The engine compression is 70 psi.… read more
Briggs-Fan
Briggs-Fan
1,278 satisfied customers
20 hp and S. Bought used 1 year ago, no probs. today sounded
20 hp B and S. Bought used 1 year ago, no probs. today sounded like it tried to die( or missed) , caught itself and returned to normal. As a good owner I thought it was time for the yearly oil check. … read more
Briggs-Fan
Briggs-Fan
1,278 satisfied customers
I have a Kohler Pro 17HP OHV (model number CV490S) (on a
I have a Kohler Pro 17HP OHV (model number CV490S) (on a Sear Craftsman LT2000 lawn tractor). Oil is dripping from the muffler while the motor runs. The motor cranks and runs fine, other than the blow… read more
Briggs-Fan
Briggs-Fan
1,278 satisfied customers
I have a kohler 26 horsepower in a walker mower oil cyl temp
I have a kohler 26 horsepower in a walker mower oil cyl temp light came on and its blowing out the dip stix… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a cub cadet with a fh661v engine. I'm getting oil in
I have a cub cadet with a fh661v engine. I'm getting oil in the carb via the valve tube , can u tell me why.… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a 92 Cub Cadet model 1862 with a 18 hp Kohler Twin cylinder.
I have a 92 Cub Cadet model 1862 with a 18 hp Kohler Twin cylinder. I can't get it to stay running, it will only start with starting fluid and only run with the choke on and the throttle up a little. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a Snapper Zero Turn with a Kohler CV15S engine. It is blowing oil out the muffler.
I have a Snapper Zero Turn with a Kohler CV15S engine. It is blowing oil out the muffler. It is not over filled nor has it been turned over, etc. I just cranked it the other day and out came the oil. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a Kohler Courage 19 HP engine that cranks and runs,
I have a Kohler Courage 19 HP engine that cranks and runs, but is shooting what I think is oil out a rubber hose coming from the valve cover through the filter cover on the carburetor. It smokes profu… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
I have a Kubota Z23 with a Kohler 23 hp twin cylinder overhead
I have a Kubota Z23 with a Kohler 23 hp twin cylinder overhead valve engine. The engine blew plumes of white exhaust, backfired, and stalled after about 20 minutes of operation. I discovered gas in th… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,847 satisfied customers
have Kohler khxs.3982gc with excessive oil smoke from head
have Kohler khxs.3982gc with excessive oil smoke from head to carb & out of exaust. 13 hp.spec # XXXXX SN# XXXXX . what is cause/ cure?… read more
PK.
PK.
Owner
High School or GED
943 satisfied customers
I just purchased a 97 Carver 325 Aft Cabin. Kohler 6.5 cz genset
I just purchased a 97 Carver 325 Aft Cabin. Kohler 6.5 cz genset installed. I am getting a strong fuel smell when running the genset. When starting, the genset fires right away, but won't keep running… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,365 satisfied customers
i have a kohler command pro 23 hp on and exmark lazer z. motor
i have a kohler command pro 23 hp on and exmark lazer z. motor serial # XXXXX engine will run smooth for a brief period and then starts smoking and running very eratic and eventually will cut off. whe… read more
Conservative
Conservative
Service Advisor
Vocational, Technical or Trade Scho
281 satisfied customers
My John Deere with a Kohler 17.5 HP motor quit running. It
My John Deere with a Kohler 17.5 HP motor quit running. It started popping and puffing black smoke then quit. Checked compression and its 75 psi...Is this normal. Pulled head off and valves look fine … read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 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