Question about 2003 KTM 640 LC4 SM
Miss fire after 20/30 mins ride but open throttle rides through miss fire and clears checked every wire replaced spark plug and cap could be ignition pickups ?? stu thanks email@example.com
That is a carburetor issue, possibly TPS, or lean midrange condition.
Posted on Apr 04, 2014
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Posted on Jan 02, 2017
yes, you are correct, those are the two pieces that could solve your problem, but i would go first for your cdi, you may choose to have it tested first also, before you jump out to buy a new one.
Posted on Nov 24, 2008
Hi and welcome to FixYa,
Offhand, the only factor to be checked that could foul a sparkplug for your bike would be the 2T oil injector/pump. There is too much 2T oil going to the combustion chamber. Either the injector would require restricting or for some reason, there is also 2T oil in the fuel tank (pre-mix).
Good luck and Thank you for using FixYa. Happy Holidays.
Posted on Dec 07, 2008
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
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
Posted on Sep 19, 2009
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