Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14

Thread: Help!! 2017.5 250 sxf idles but wonít rev

  1. #11
    KTMTalk Member
    Join Date
    Nov 2012

    Default Re: Help!! 2017.5 250 sxf idles but wonít rev

    Quote Originally Posted by rpmason View Post
    No blockage in intake or exhaust, checked charge at battery (does increase with throttle blip), also swapped tank with fuel pump off a 2019 350. Iím down to mechanical, wire harness, and havenít swapped what I believe to be the gear position sensor. Cam timing and valve clearance spot on. The head pounding continues. Performing a leak down test tomorrow
    You have pretty much tried every thing on the fuel and electrical. Must be mechanical. Have you checked all the filters for metal? I hope they are all clean,
    '18 350 SXF
    '09 150 200SX
    '09 518 EXC SM Tagged
    '08 505 XCF Tagged

    '08 450 SXF Rekluse
    '02 Honda 919
    '91 Honda VFR 750
    '92 Yamaha TDM 850
    '88 Honda NX 650
    '88 Honda NT 650 Hawk Blue

    '12 BMW R1200R Classic,

  2.    Sponsored Links


  3. #12

    Default Re: Help!! 2017.5 250 sxf idles but wonít rev

    Leak down test is good. Have it at the dealership now for a diagnostic test

  4. #13

    Default Re: Help!! 2017.5 250 sxf idles but wonít rev

    Dealership didnít come up with any active diagnostic codes.

  5. #14
    KTMTalk Member
    Join Date
    Aug 2002

    Default Re: Help!! 2017.5 250 sxf idles but wonít rev

    Looking back at your original post the problem could be some type of intermittent short or defective component in the electrical system that drains the battery and affects the ignition. Time to start looking at the wiring harness. Do some research on this forum on what defects others have found in the wiring harness and CDI.

Page 2 of 2 FirstFirst 12

Similar Threads

  1. 2017 250 xcf idles fine but crapps out at speed
    By toro618 in forum 4 Stroke KTMs - 2005.5 to Current, 250cc to 500cc
    Replies: 10
    Last Post: 05-22-2020, 09:29 AM
  2. 2017 KTM 50 SX idles but has no throttle response
    By llk2010 in forum KTM 50 discussion
    Replies: 5
    Last Post: 11-14-2016, 12:43 PM
  3. 06 525 just idles
    By Orange2smoke in forum RFS-Racing 4 Strokes
    Replies: 9
    Last Post: 11-11-2016, 04:50 PM
  4. Idles fast when hot (07 250xcf idles high when hot)
    By shellshocked in forum Jetting and Fuel Injection mapping for 2 and 4 stroke KTM's
    Replies: 3
    Last Post: 09-09-2009, 10:41 AM
  5. Idles fast when hot ?
    By jktm in forum 2 Stroke KTMs
    Replies: 12
    Last Post: 06-25-2006, 07:50 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts