I did a search on this issue didn't see it discussed. We have
encountered a pattern with four different 250 sx bike 2012-2013
bikes,all four of the riders complained about difficulty shifting from 2nd
to 3rd while under heavy acceleration. (could not be duplicated under
lesser acceleration attempts) (shift problem usually occurred while
pulling hard out of a corner) Eventually the riders couldn't shifting
from 2nd to 3rd until repairs were made, with a little research I
found some information on this issue but little on the cause or
Our local Colorado speed shop LSE (Leavitt Speed Equipment
http://lseracing.com/) developed a repair that has successfully fixed
this issue on all four bike. It included polishing the SHIFT DRUM and
replacing the wheel on the LOCATING LEVER with an actual bearing.
I guess my question is has anyone else encountered this problem is
this a prevalent problem or an isolated issue?
250 sx shift issues
Posted 10 June 2013 - 07:38 PM
Posted 10 June 2013 - 07:45 PM
Posted 10 June 2013 - 08:37 PM
Edited by harryhandshake, 10 June 2013 - 08:40 PM.
Posted 11 June 2013 - 01:42 PM
Posted 12 June 2013 - 01:22 PM
Posted 12 June 2013 - 04:28 PM
Posted 12 June 2013 - 09:20 PM
Posted 13 June 2013 - 01:00 AM
i rode the bike 38h till now and those problems occured at last weekend.
in a german forum many people replaced following parts and the problem was fixed. I ordered those parts and will install them hopefully on friday.
[color=#333333][font=Verdana][size=3][background=rgb(250, 250, 250)]54834015000 SHIFT LOCATING DRUM 2003 [/background][/size][/font][/color]
[color=#333333][font=Verdana][size=3][background=rgb(250, 250, 250)]54834005044 SHIFTING SHAFT CPL. 03[/background][/size][/font][/color]
here are some pics of the parts i am going to replace. you can see some wear on the locating drum, hopefully this causes the problems, as i had no problems the first 35h i rode the bike