Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Small Engine

I have a LX 186 Deere riding mower that has very little

Customer Question
I have a LX 186...
I have a LX 186 John Deere riding mower that has very little spark. I have change the pulg,coil,and the switch any ideals on what to do next.
Submitted: 2 years ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 14 minutes by:
9/17/2015
Technician: JohnF2015, Technician replied 2 years ago
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,179
Experience: Owner/Service Technician at S & J Small Engines
Verified

Hi, my name is***** will be assisting you.

If you unplug the small wire that goes to the ignition coil and crank the engine do you notice any difference in spark?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
no
Technician: JohnF2015, Technician replied 2 years ago

You have the ignition coil gap set at .010 inches to the flywheel magnet? This could cause a poor or weak spark if it is not set correctly.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
i set the gap with a business card the last time, but have set gap from .04 and up.
Customer reply replied 2 years ago
i forgot i also put on a new igniter
Technician: JohnF2015, Technician replied 2 years ago

When checking spark, what are you using to check it or how are you checking it?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
is it a additioinal $18.00 dollars for the phone call.
Customer reply replied 2 years ago
i take the plug out and ground it to the motor. does the white wire that goes to the igniter have 12 volts. When i turn the key on should it be hot . everything you have suggestedi have already tried.
Technician: JohnF2015, Technician replied 2 years ago

No, the white wire going to the igniter should not have voltage on it at any time if is does it will burn out the igniter as well as the ignition coil.

If you would like to talk by phone I can send you an offer which would be less than that but normally yes that is the cost.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
just credit my account and i will just move on. i see where this is headed, if i wanted to invest that much money i would take it to John Deere.
Technician: JohnF2015, Technician replied 2 years ago

We can continue discussion here without the phone call.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
just though you mite have deal with this before and have some suggestion, will any of the safety switch kill fire. i took them all out of line but still no fire. The charing system under the fly wheel i dont think has anything to do with it. but something is keeping it from fireing hard enough to start.
Technician: JohnF2015, Technician replied 2 years ago

No, the charging system will have nothing to do with it firing. It is a totally separate circuit and is only there to recharge the battery.

It is most likely not a safety switch because normally the safety switches would not allow it too fire any at all rather than be a weak spark. If you have replaced the igniter and the ignition coil about the only other thing that it could be is a wire backwards in the system that is partially grounded or shorted out causing a weak spark.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
i have cut the hole wiring harness off and check for a grounded wire. i have run it down wire by wire but still no luck. the mower was runing when i pulled it in to put a new deck belt on. after i change the belt and i went to pull it out it wouldn't start. I have took the ground wire off and clean it to make sure it has a good ground.
Technician: JohnF2015, Technician replied 2 years ago

I am at a loss for anything to recommend, I will opt out of your question and maybe one of the other experts here may have a suggestion for you.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
ok, i'll be waiting for their suggestions.
Technician: Curtis B., Technician replied 2 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,448
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

What am I missing here? The coil and magnet are all that make the spark. Remove the kill wire from the coil, and check for spark!

Ask Your Own Small Engine Question
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,448
29,448 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

29,448 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
The black wire of my old snowblower has become disconnected,
the black wire of my old snowblower has become disconnected, and I have no idea where to reconnect it. It was functioning well until the last storm. Seemed sluggish. I took off the shield to get at th… read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
What do I have to do to stop my shoot from going where it
What do I have to do to stop my shoot from going where it wants to, the shoot itself, not the top of it? it is a 2 stage 24 inch blower. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Ariens 920001-ST624E Sno-Thro won't start. And yes. So far.
I'm an engineer, but...I've reread all the start procedures...its worked well for about 8 years....not a ton of use....I always change the oil...I've checked the spark plug for fouling as well as the gap. Oh and I'm careful about fouling the correct starting steps.… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
We have an onan 4000 light in our 2005 itasca motorhome, ot
We have an onan 4000 light in our 2005 itasca motorhome, ot runs great unless we are in a heat situation and it will not run, heat as in 90 or better … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Model thickness planer drive belt change. First time. Just
Model###-##-#### thickness planer drive belt change … read more
Curtis B.
Curtis B.
Technician
29,448 satisfied customers
I have a mtd 145/38 I can not loc ate the fuse. Today.
today. Checked solenoid. It is ok but no power to key. … read more
Curtis B.
Curtis B.
Technician
29,448 satisfied customers
My Chamberlain door opener is not cycling properly. What is
My Chamberlain door opener is not cycling properly. What is causing that and how can fix it … read more
Eddie
Eddie
Home Improvement Contractor and Repairs
High School or GED
1,044 satisfied customers
Io ho un motore .es.5hp mode 135292 type 1232f1 code 98a42yb
io ho un motore b.es.5hp mode 135292 type 1232f1 code 98a42yb di che anno e'? devo usare benzina verde o devo mettere l'additivo nel carburante? … read more
Curtis B.
Curtis B.
Technician
29,448 satisfied customers
How do I get the knob off of my fuel valve on a Sno-Tek 24E
How do I get the knob off of my fuel valve on a Sno-Tek 24E Model 920402. I am leaking fuel and need to get the shield off and don't want to break the knob. Rich Marcott, Shoreham,NY … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Troy bilt 2410 wont start. think it is old gas best way to
troy bilt 2410 wont start. think it is old gas best way to get it out … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
Have a toro ultra blower vac - how do you change modes?
have a toro ultra blower vac - how do you change modes? … read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
I have changed the starter solenoid but mower still won't
I have changed the starter solenoid but mower still won't start … read more
Curtis B.
Curtis B.
Technician
29,448 satisfied customers
I can't start my Ariens Deluxe 28 snow blower. My model has
Yes, My model has the choke and idle down controls in the same location. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
How do I replace the clutch cable on a 221 LHP? I know what
How do I replace the clutch cable on a 221 LHP? I know what has to be replaced, but can't see lower end to hook it up. Does the top cover have to come off? I've only taken off the bottom. … read more
Curtis B.
Curtis B.
Technician
29,448 satisfied customers
Door will not raise< but trolley works. Today. Door opener
Door will not raise< but trolley works JA: I'll do all I can to help. How long have you been dealing with this? Customer: today JA: Do you plan on doing the work yourself? Customer: yes JA: Anythin… read more
David Bowden
David Bowden
Owner
467 satisfied customers
I have a 2005 arctic 570 engine that runs on one cylinder. I
I have a 2005 arctic 570 engine that runs on one cylinder. I replaced plugs and coil, have good spark. As I turn the engine over I feel compression but does not fire. I pull the plug and it is wet. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a craftsman 4 cycle snow blower. I can't get the pull
Hi I have a craftsman 4 cycle snow blower. I can't get the pull cord to pull and I can't get the auto start to turn over … read more
Donald
Donald
Owner / Technician
High School
2,228 satisfied customers
I a contractor table saw model 351.218330. Sorry, my problem
Sorry, my problem is that I can not crank the saw blade up and down. I assume it needs cleaning and oiling but I can get access to the worm gear to do the cleaning. I have tried to remove the side panels but the front panel does not come off??? … read more
Curtis B.
Curtis B.
Technician
29,448 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