Question about 2010 KTM 250 SX

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Bought a used bike. started fine. after third trip out became hard to stsrt. now i cant start it. has spark and a new plug, checked spark arrestor packing. cleaned carburator. still wont fire. even triied a couple drops of feul into the cylinder head to prime it

Posted by roger bantley on

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Ronald Wensley

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I would first check the compresion to see if you do it will need a propper tester.

Posted on Dec 15, 2013

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3 Related Answers

Anonymous

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SOURCE: 07 ktm 450sxf wont start

take your carb out, clean the entire thing, that means every nook in that *****. do this and if still a problem write back because in most cases were n idiot is involved, this is the most over looked problem

Posted on Feb 17, 2009

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Anonymous

  • 46 Answers

SOURCE: wont start

Hi,

Oil from the breather is an indicator of compression bypassing the rings. This causes sump compression.
Cause of the problem is worn rings.
You need to conduct a compression test, if the compression is low then rings are probably the cause of the bike not starting.

Cheers

Jon

Posted on Mar 16, 2009

ollie reece

ollie reece-jones

  • 1167 Answers

SOURCE: it started bogging down when riding and now it

hi buddy are you mixing it correctly with a mixing bottle with 40:1 ratio also on the carb will be a screw mixture screw turn this all the way in and unscrew it 1 1/2 turns out and try this also is there compression get back to me cf6410f.jpg

Posted on Sep 19, 2009

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2 Answers

Theres no spark and bike wont start


you will have to check lead to spark plug then lead to coil
if your not getting spark at plug it could be a number of things ingintion
or just a loose wire best of luck hope you solve it

Mar 15, 2014 | Pit Bike 125cc 4 Stroke Dirt Bike

1 Answer

Bike not starting


first try a new spark plug, if you get spark check gas filter, have spark ,have fuel, have timing it should start

Jan 05, 2014 | Pit Bike 125cc 4 Stroke Dirt Bike

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HARD STARTING.... I CHANGE THE JETTINGS OF THE CURB THEN IT RAN SMOOTHLY AND POWERFUL AFTER 2 DAYS IT BECAME HARD TO START. WE CHECK THE WIRINGS AND CDI ITS OK... WAT IS THE FREEKIN PROBLEM OF MY BIKE


The problem is with in your spark plugs. Try to replace it with a new spark plug . The same thing happened to my bike and I did the same. When I replace the spark plugs it ran perfectly.

Nov 29, 2010 | 1994 Suzuki GSF 400 Bandit

1 Answer

Hi i have a honda CM125C 1985 MODEL. it keeps blowing spark plugs. this caues it to flood and not start. when it does start it will die one me or move but very slowly and then die. i have cleaned the...


Check your standard factory specs for spark plugs, it sounds like ur bike getting OVERHEAT!

Did you happen to check the over head valve camshaft? Ussually that bike , w/ age happen to be more tha 10 yrs old, cam shaft, valve guide are worn out and out of clearance! Check it please!

Hope that make your bike be reliable again!

Nov 07, 2010 | 2000 Honda CM 125 C

1 Answer

Cant get my 125cc motor bike going for the first time


hummm check your electrical connections make sure you have the stop run switch is in run position,you have fuel flow to the carb, make sure you are getting spark to the spark plug by using a extra spark plug remove the plug cap and ground it to the head and kick start the engine and see if you are getting spark to the plug.
hope this helps

May 05, 2010 | 2001 Yamaha TW 125

1 Answer

Ryobi backpack leaf blower about three years hard to start


Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

Nov 24, 2009 | Ryobi Garden

2 Answers

Hi..every1.. Am a resident of india... i bought a new HERO HONDA karizma 4months back...and when i was drivin the city..an indica (indian car) hit me on the silencer ...n i had a tibial fracture...


All those damaged parts can be replaced and if you have a comprehensive insurance for it thn there should be no problem to put up a claim..it all depends how your systen works in your country.
To go to the starting issue... you will have to check for the sparks at the spark plugs and also check if the fuel is reaching the plugs.
Check at the carburator float bowel ....there must be a fuel drain screw ... set the petcock to'on' postion and unscrew the drain screw to see if fuel is enterng the carbs float chamber... if yes ..thn try to start it ......thn remove the spark plug and see if its wet with fuel.....at this point clean the spark plug and thn test it for sparks.....keeping in mind tht it should be dry of fuel to avoid fire hazard!
Thirdly ..to the cost of it to bring back to normality i guess you will have to get estimates from the dealers of the bike.
Hope this helps! Good luck!

Sep 06, 2009 | 2006 Hero Honda Karizma

1 Answer

1982 suzuki gs650 runs, but not over 300rpm


better check for the ignition coil for proper sparking or igniting of current in the comprssion chamber, check the ignition coil spark plug wire, check the spark plug, check for proper fuel supply in the flow system to Carbs, check for Ignition timing of the bike, or still you cant solve or still worried then dont worry better take the bike to nearest aurhorised Suzuki service centre for better assistance on this problem surely the problem will be solved.

Jul 22, 2009 | 1982 Suzuki GS 650 GT

1 Answer

Hard to start yz250 dirt bike 2001 4stroke


i used to own a yz426f and it had the exact problem... a fresh plug will fix your problem. change the plug and the bike will run great. also don't start the bike and shut it off , my bike would be fine if i started it and rode for a while getting to the proper heat range help save the plug. if my bike didn't start in one or two kicks it was usually the plug.



hope this helps

Mar 10, 2009 | 2003 Yamaha YZ 250 F

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