Motorcycle

Motorcycle questions? Ask a mechanic.

Ask an Expert,
Get an Answer ASAP!

Have a 2018 ktm 50 sx and it was running two days ago. Now…

Customer Question
Have a 2018 ktm...

Have a 2018 ktm 50 sx and it was running two days ago. Now it won't start. Have spark, checked the top end. Noticed it was leaking a litttle oil out of the exhaust flange when I was kicking it. Could it be the stator or not

Mechanic's Assistant: Have you ever replaced the gaskets? Maybe the hoses?

Haven't changed anything. Replaced both radiators. Just put a new fmf exhaust on it two weeks ago. It won't even try to start

Mechanic's Assistant: What is the model of your '50 motorcycle?

Ktm 50 sx

Mechanic's Assistant: Are you fixing your bike yourself? What have you tried so far?

I was trying to fix it myself. I cleaned the carb, checked the spark, checked the top end, and changed the kill switch

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Don't think so

Submitted: 7 months ago.Category: Motorcycle
Show More
Show Less
Ask Your Own Motorcycle Question
Answered in 8 hours by:
12/3/2017
Motorcycle Mechanic: Louie, Technician replied 7 months ago
Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 13,440
Experience: 25+ yrs. experience
Verified

Hi and welcome to JustAnswer, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, it would least likely be stator/ignition related since there is spark.

Still, let's try check and review the basics. Proposed preliminary tries (if have not been done):

  • • determine the burn color of the spark plug tip;
  • • check if there is fuel at the carb bowl;
  • • drain carb bowl to see fuel quantity and quality;
  • • temporarily remove the air box;
  • • attempt to start with the carb mouth/air entry covered by the palm of your hand;
  • - feel if there is strong suction; and
  • - if your palm would get wet with fuel;
  • • consider checking / cleaning the bottom of the crankcase;
  • • as well as the exhaust system.

This is an independent site and members of this online community provide information, repair tips, technical assistance as a form of paid Q & A service.

Ask Your Own Motorcycle Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a motorcycle mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Louie Your Own Question
Louie
Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 13,440
13,440 Satisfied Customers
Experience: 25+ yrs. experience

Louie 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:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

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

< Previous | Next >

Meet the Experts:

Jeff Policky

Jeff Policky

Motorcycle Mechanic

2,425 satisfied customers

Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP

Louie

Louie

Technician

13,440 satisfied customers

25+ yrs. experience

TIMOTO

TIMOTO

Motorcycle Mechanic

1,245 satisfied customers

Honda registered technician, silver level award, former Kawasaki/Suzuki tech, 40+ years exp.

Andre Pilon

Andre Pilon

Motorcycle Mechanic

1,032 satisfied customers

Over 25 years experience, ICS, MMI, Owned shop for 12 years, worked tech-support for Harley Davidson

Kenny O.

Kenny O.

Motorcycle, ATV, Mules, Side by Side's Product Specialist. All Brands

619 satisfied customers

Worked for Kawasaki Motors as a Product Support Specialist (Factory Support) for 24 years

asphaltcycles

asphaltcycles

Motorcycle Mechanic

468 satisfied customers

I operate a motorcycle dealership and CCS Ducati Race team.

Glenn Adams II

Glenn Adams II

Motorcycle/ATV Technician

393 satisfied customers

6 years Motorcycle/ATV/Water Craft; 4 years auto; 18 years carpenter

< Previous | Next >

Related Motorcycle Questions
New piston ring reeds counter amd main gear ran fine a day
New piston ring reeds counter amd main gear ran fine a day now womt start … read more
Louie
Louie
Technician
Associate Degree
13,440 satisfied customers
Ktm 50 Mini adventure. Bought used. Grandson is learning to
Ktm 50 Mini adventure. Bought used. Grandson is learning to ride. Was running great. Died while he was riding. Can't get it to start back. Getting fire. Seems to be getting fuel. Could smell on plug. … read more
Louie
Louie
Technician
Associate Degree
13,440 satisfied customers
Can't Find An Ign. Coil 1996 KTM 400 (#58031006000 ) Can
Can't Find An Ign. Coil For A 1996 KTM 400 (#58031006000 ) Can Anything else Be Adapted / Used… read more
Kenny O.
Kenny O.
Motorcycle, ATV, Mules, Side by Side's Product Specialist. All Brands
619 satisfied customers
I'm trying to get my son's KTM 50 mini going. Never had any
Hi, I'm trying to get my son's KTM 50 mini going. Never had any problems with it. Always fired up on 2nd kick. He rode it one day. It wouldn't start next day. I took it into the shop and they said 0 c… read more
K. Wiggins
K. Wiggins
ASE Certified Technician
Associate Degree
3,427 satisfied customers
I have an 03 ktm 250 sx. it fouled a plug one day and now I
I have an 03 ktm 250 sx. it fouled a plug one day and now I can't get it to run by kick start. It will run by pull start but barely. It misses and smokes terrible. I cleaned the carb and that didn't c… read more
RSRBOB
RSRBOB
MC / Pwc Shop Owner
Vocational, Technical or Trade Scho
654 satisfied customers
I have a 2008 ktm 50 sx and its seems to keep bogging weather
I have a 2008 ktm 50 sx and its seems to keep bogging weather cold or hot. Have rebuilt engine from top to bottom and replaced all electrical parts i.e. coil, plug, stator,plug cap etc Reeds and carb … read more
Bike-Doc
Bike-Doc
senior motorcycle technician
Vocational, Technical or Trade Scho
671 satisfied customers
i have a 1999 yahama pw 50, it did run great.i rode it for
i have a 1999 yahama pw 50, it did run great.i rode it for 3 minutes and it stalled out like it was out of gas but it wasnt, i kicked it over and it wont start, i have 2 of them so i changed out the c… read more
Wayne S.
Wayne S.
Motorcycle Mechanic
Fully Licensed Motorcycle Mechanic
1,255 satisfied customers
Hi I Have a 2010 KTM 150 sx that will not start after storage,
Hi I Have a 2010 KTM 150 sx that will not start after storage, was bought used last fall would start then but felt very sluggish of idel and would only pull after midrange. Had stable in fuel over the… read more
Jeff Policky
Jeff Policky
Motorcycle Mechanic
Yamaha,Suzuki,Polaris Technical Tra
2,425 satisfied customers
new aftermarket, and replaced the flywheel with good used one..cdi
I have a 2000 rm 250 two stroke dirt bike second time out this year lost spark, I found that the two stator screws came loose stator wobbled tore up stator and flywheel. I replced the stator and pick … read more
Jeff Policky
Jeff Policky
Motorcycle Mechanic
Yamaha,Suzuki,Polaris Technical Tra
2,425 satisfied customers
new fuel..volts..direct ignition coil tests ok for resistance..voltage
Ok, I have a crf250r 2008 that has a spark problem I got the bike about 6 months ago from a private sale looked at the bike and the guy started it first kick got home and it has not run since. Closer … read more
CycleTechChick
CycleTechChick
Service Manager
263 satisfied customers
I have an 02 ktm jr adventure 50 its only getting about 1
I have an '02 ktm jr adventure 50 its only getting about 1 volt at the plug. I checked the volts from the stator, was 2. Checked on a honda 50, was 24. Checked a ktm 65, was 10. So i replaced stator, … read more
Jeff Policky
Jeff Policky
Motorcycle Mechanic
Yamaha,Suzuki,Polaris Technical Tra
2,425 satisfied customers
A guy and he put a new piston & rings in it..never started..bike
I have a 2001 KTM 50 Mini Adventure. I got it from a guy and he put a new piston & rings in it. He never started the bike after that. The bike has compression of 118 and it seems to have good spark. I… read more
Chris
Chris
Senior Mechanic & Technician
Factory Training
90 satisfied customers
intermittent problem..start in the woods & was warmed up...new plug
kx65 intermittent problem. It would not start in the woods & was warmed up. Installed a new plug to no avail. Pulled plug out & lighted plug hole fumes so fuel/air mixture is confirmed. hooked plug wi… read more
Kenny O.
Kenny O.
Motorcycle, ATV, Mules, Side by Side's Product Specialist. All Brands
619 satisfied customers
Honda: runs good..top end..misses..the throttle a little it smoothes
i have a 1986 trx 250 r honda 4wheeler,runs good on idle allthe way up to almost top end and it flattens out,kind of like it misses a little if you let off the throttle a little it smoothes back out… read more
Jeff Policky
Jeff Policky
Motorcycle Mechanic
Yamaha,Suzuki,Polaris Technical Tra
2,425 satisfied customers
A KTM 250 sx 2005 bike and got spark plug problems.I..carb..coil
I've got a KTM 250 sx 2005 bike and got spark plug problems.I have done all there is to be done on the carb .Hade it back to KTM twice first time replaced the idel jet to a smaller one second time rep… read more
Wicked Wrench
Wicked Wrench
Automotive Technology Instructor
Associate Degree
458 satisfied customers
198 honda: bottom end i have put new crank,rod,piston,rings,stator
i ave a 198 honda cr500 that is bogen on the bottom end i have put new crank,rod,piston,rings,stator and have stator set on 3. and it is very hard to start when cold i was told it is out of time but i… read more
Ski Doctor
Ski Doctor
Owner, operator
Vocational, Technical or Trade Scho
530 satisfied customers
125 sx ktm that idles low when im taking off i feel..more kick i..carb
good afternoon i have a 125 sx ktm that idles low when im taking off i feel it needs more kick i have cleaned the carb but it does not seem to help what could i do… read more
Polarisman
Polarisman
Powersports Technician
14 satisfied customers
I have a single cyl..motorcycle..voltage regulator..bike
I have a single cyl. carb'ed KTM motorcycle (LC4) and just installed a higher output stator with appropriate new voltage regulator from a KTM 950 to handle the increased stator output. No other change… read more
Graham Percival
Graham Percival
Manager
Vocational, Technical or Trade Scho
94 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